250-RICR-150-10-3
250-RICR-150-10-3. Rules and Regulations for Sewage Sludge Management (version Amendment, 01/04/2012 to 01/04/2012)
Regulation 12-190-008 (December 2011)
STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS
DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
Office of Water Resources
Rules and Regulations for Sewage Sludge Management
December, 2011
Regulation #12-190-008
AUTHORITY:
These rules and regulations are adopted pursuant to Chapters 42-35, 46-12,
42-17.1, 23-18.9 and 23-19.1 of the Rhode Island General Laws of 1956, as
amended.
Regulation 12-190-008 (December 2011)
STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS
DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
Office of Water Resources
RULES AND REGULATIONS FOR SEWAGE SLUDGE MANAGEMENT
TABLE OF CONTENTS
RULE 1. PURPOSE .................................................................................................................................... 1
RULE 2. AUTHORITY .............................................................................................................................. 1
RULE 3. APPLICABILITY ....................................................................................................................... 1
RULE 4. LIBERAL APPLICATION ........................................................................................................ 1
RULE 5. DEFINITIONS ............................................................................................................................ 1
RULE 6. SLUDGE MANAGEMENT OPERATIONS ............................................................................ 5
RULE 7. REQUIREMENTS FOR ORDER OF APPROVAL ............................................................... 5
RULE 8. APPLICATION FOR ORDER OF APPROVAL .................................................................... 8
RULE 9. LAND DISPOSAL ...................................................................................................................... 9
RULE 10. LAND APPLICATION OF PSRP-TREATED SLUDGE ................................................... 12
RULE 11. TREATMENT ......................................................................................................................... 15
RULE 12. DISTRIBUTION AND LAND APPLICATION OF PFRP-TREATED SLUDGE ........... 18
RULE 13. STOCKPILING ...................................................................................................................... 24
RULE 14. TRANSPORTATION ............................................................................................................. 25
RULE 15. INCINERATION .................................................................................................................... 26
RULE 16. CO-DISPOSAL OF SLUDGE AND SOLID WASTE ......................................................... 28
RULE 17. OCEAN DISPOSAL ............................................................................................................... 29
RULE 18. NOTIFICATION OF CLOSURE AND CLOSURE PROCEDURE .................................. 29
RULE 19. LIMITED ACCESS ................................................................................................................ 29
RULE 20. SLUDGE RELEASE .............................................................................................................. 29
Regulation 12-190-008 (December 2011)
TABLE OF CONTENTS (continued)
RULE 21. EXISTING FACILITIES OR SITES .................................................................................... 30
RULE 22. VARIANCES ........................................................................................................................... 30
RULE 23. DENIAL, SUSPENSION, REVOCATION OF APPROVAL ............................................. 30
RULE 24. PENALTIES ............................................................................................................................ 30
RULE 25. APPEALS ................................................................................................................................ 31
RULE 26. SEVERABILITY .................................................................................................................... 31
RULE 27. SUPERSEDED RULES AND REGULATIONS .................................................................. 31
RULE 28. EFFECTIVE DATE ................................................................................................................ 32
APPENDIX 1 ............................................................................................................................................. 33
APPENDIX 2 ............................................................................................................................................. 34
APPENDIX 3 ............................................................................................................................................. 35
APPENDIX 4 ............................................................................................................................................. 37
APPENDIX 5 ............................................................................................................................................. 38
APPENDIX 6 ............................................................................................................................................. 39
APPENDIX 7 ............................................................................................................................................. 40
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Regulation 12-190-008 (December 2011)
STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS
DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
Office of Water Resources
RULES AND REGULATIONS FOR SEWAGE SLUDGE MANAGEMENT
RULE 1. PURPOSE
The purpose of these rules and regulations is to ensure that sewage sludge that is treated, land applied, disposed, distributed,
stockpiled or transported in the State of Rhode Island is done so in a manner to protect public health and to avoid degradation
of the environment. To achieve this purpose, these rules and regulations establish procedures governing the management of
sludge.
RULE 2. AUTHORITY
These rules and regulations are promulgated pursuant to the requirements and provisions of Chapter 42-17.1, "Department of
Environmental Management", Chapter 42-17.6, "Administrative Penalties for Environmental Violations", Chapter 46-12,
"Water Pollution", Chapter 23-18.9, "Refuse Disposal", Chapter 23-19.1, "Hazardous Waste Management", and Chapter 42-
35, "Administrative Procedures Act", of the Rhode Island General Laws of 1956, as amended.
RULE 3. APPLICABILITY
(A)
These rules and regulations apply to all sludge generated by publicly owned treatment works or privately owned
treatment works that is managed in the State of Rhode Island. All sludge generated by publicly owned treatment works
or privately owned treatment works that enters the State of Rhode Island for the purpose of transportation only, shall
also be subject to the transportation requirements of these rules and regulations.
(B)
In addition to compliance with these rules and regulations, certain proposed facilities or sites may require compliance
with legal requirements imposed by the federal government, other state agencies or offices within the Department and/or
local governmental entities (governmental requirements). These rules and regulations are intended to be and should be
interpreted to be consistent and/or complementary with said governmental requirements and any perceived conflicts are
unintentional. Should a perceived conflict arise between or among these rules and regulations and the governmental
requirements imposed by other departmental regulations or other governmental entities, the most stringent requirement
shall govern.
(C)
Byproducts or wastes from commercial or industrial treatment works that do not contain sewage sludge are not subject
to these rules and regulations but may be subject to other applicable State and Federal regulations for solid waste or
hazardous waste. Byproducts or wastes from commercial or industrial treatment works that contain sewage sludge may
also be subject to applicable State and Federal regulations for solid waste or hazardous waste.
RULE 4. LIBERAL APPLICATION
The terms and provisions of these rules and regulations shall be liberally construed to permit the Department to effectuate the
purposes of state law, goals, and policies.
RULE 5. DEFINITIONS
For the purposes of these rules and regulations, the following terms shall have the following meanings:
(A)
"Abutter" means any person who owns property adjacent to, or across a road, railroad, or stream from a proposed
facility or site.
(B)
"Agricultural lands" means those lands utilized for or having the potential for the production of food crops, feed
crops or fiber crops.
(C)
"Agronomic rate" means the sludge application rate that is designed to provide the amount of nitrogen or other
nutrient(s) needed by the crop or vegetation and minimize the amount of nitrogen that passes below the root zone of
the crop or the vegetation to the groundwater.
(D)
"Beneficial use" means taking advantage of the nutrient content and/or soil conditioning properties of sludge by
supplying agronomic or soil conditioning benefits such as nitrogen, phosphorus, micronutrients, or organic matter
needs for crops, silviculture or establishing a vegetative cover for reclamation sites.
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Regulation 12-190-008 (December 2011)
(E)
"Aquifer" means a geologic formation, group of formations, or part of a formation capable of yielding a significant
amount of groundwater to wells and springs.
(F)
"Applicant" means a person who applies for an Order of Approval or the Director's approval pursuant to these rules
and regulations.
(G)
"Bulk distribution" means the distribution of Class A Biosolids in a container greater than 100 pounds.
(H)
"Bulking agent" means material such as sawdust, woodchips or yard trimmings which is added to the sludge to
provide structure, lower total moisture content, allow air to reach and be held in small pockets by preventing settling
and compaction of the sludge, and in some cases to act as a carbon source for composting operations.
(I)
"Class A Biosolids" means any treated sludge that meets the metals and pathogen limits established in Appendix 5 of
these rules and regulations.
(J)
"Class B Biosolids" means any treated sludge that does not meet the metals limits established in Appendix 5 but
meets the metals limits established in Appendix 6 of these rules and regulations.
(K)
"Class C Biosolids" means any treated sludge that does not meet the metals limits established in Appendix 6 of these
rules and regulations.
(L)
"Closure" means the procedures used to cease the use of a facility, or a portion thereof, in a manner that will
minimize future risks of environmental damage, and includes all post-closure inspection, monitoring, and
maintenance activities.
(M)
"Composting" means the biological method of stabilizing organic residues through an aerobic, self-heating process.
(N)
"Cover" means soil or other approved material placed over sewage sludge in a land disposal site or sewage sludge or
solid waste in a solid waste landfill.
(O)
"Department" means the Rhode Island Department of Environmental Management.
(P)
"Director" means the Director of the Department of Environmental Management or any designee to whom the
Director delegates any powers and duties vested in that office.
(Q)
"Disposal" means the final discharge, deposit, injection, dumping, mixing, spilling, leaking, incinerating, or placing
of sludge into or onto any land so that such sludge or any constituent thereof may enter the environment, be emitted
into the air or be discharged into any surface water or groundwater.
(R)
"Distributor" means any person who distributes or markets Class A Biosolids. Any person that receives and
distributes or markets packaged Class A Biosolids exclusively is not considered a distributor.
(S)
"Facility" means any building, structure and operation, including land or appurtenances thereto, on one contiguous
site used for the generation, processing or management of sludge. A facility includes, but is not limited to a publicly
or privately owned treatment works, sludge treatment facility, sludge-only landfill (or monofill),sludge incinerator
and site where sludge is treated, stockpiled or mixed with other sludge or other material for shipment off-site.
(T)
"Feed crops" means crops grown for consumption by animals.
(U)
"Fiber crops" means crops, such as flax or cotton that are cultivated for their fiber content and are not consumed by
humans or by animals intended for human consumption.
(V)
"Flood plain" means that land area adjacent to a river which is, on the average, likely to be covered with flood water
resulting from a 100-year frequency storm, and shall be that land so designated as flood plain on the U.S. Department
of Housing and Urban Development Federal Insurance Administration Flood Hazard Boundary Map, currently
administered by FEMA.
(W)
"Food crops" means crops, including tobacco, consumed by humans.
(X)
"Generator" means the person who holds title to a publicly owned treatment works or privately owned treatment
works located in Rhode Island that produces sewage sludge or the facility or site located in Rhode Island where
sludge is mixed or treated to produce another material.
(Y)
"Groundwater" means water found underground which completely fills the open spaces between particles of soil
and spaces within rock formations.
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Regulation 12-190-008 (December 2011)
(Z)
"Hazardous waste" means any waste as defined in accordance with Section 23-19.1 and Section 23-19.4 of the
General Laws of Rhode Island of 1956, as amended, and regulations adopted pursuant thereto.
(AA)
"Incorporated into the soil" means the injection of liquid sludge beneath the surface of the soil or the mixing of
sludge with the surface soil for beneficial use.
(BB)
"Land application" or "land-applied" means the spraying or spreading of sludge onto the land surface; the
injection of sludge below the land surface; or the incorporation of sludge into the soil so that the sludge can either
condition the soil or fertilize crops or vegetation grown in the soil.
(CC)
"Land disposal" or "land-disposed" means the burial of sludge in a sludge-only landfill (or monofill). Burial of
sludge in a solid waste landfill is not considered land disposal.
(DD)
"Lead free" means any sludge having no lead present or having lead present in amounts less than the standards
established in the Rhode Island Department of Health "Rules and Regulations for Lead Poisoning Prevention," as
amended.
(EE)
"Lead safe" means any sludge, which pursuant to the Rhode Island Department of Health "Rules and Regulations for
Lead Poisoning Prevention," as amended, poses no significant environmental lead exposure hazard despite having a
lead concentration above that required for a designation as "lead free" (see sub rule (DD) above).
(FF)
"Management" or "manage" means the supervising, controlling, or undertaking of any sludge activity(ies)
regulated under these rules and regulations including transporting, processing, land applying, disposing, stockpiling,
treating or distributing of sludge.
(GG)
"Monitoring well" means a cased and screened well that intercepts the groundwater and can be used to detect the
presence of groundwater contamination. All monitoring wells are to be designed based on criteria established by the
Department.
(HH)
"Office of Water Resources" means the Office of Water Resources of the Department of Environmental
Management.
(II)
"Operator" means the person in control of or having responsibility for managing the sludge activity(ies) at a facility,
site or publicly or privately owned wastewater treatment facility.
(JJ)
"Order of Approval" means a written document issued by the department, which authorizes the holder to manage a
site or facility or transport sludge according to the terms of the document.
(KK)
"Owner" means the person named on the Federal National Pollutant Discharge Elimination System (NPDES) or the
Rhode Island Pollutant Discharge Elimination System (RIPDES) permit issued for a facility or the applicant named
on the Order of Approval or the person holding title to a facility or site where sludge is generated and/or managed or
is proposed to be generated and/or managed.
(LL)
"Pathogen" means disease-causing organisms including, but not limited to, certain bacteria, protozoa, viruses, and
viable helminth ova.
(MM)
"Person" shall include an individual, trust, firm, joint stock company, corporation (including a quasi-governmental
corporation), partnership, association, syndicate, municipality, municipal or state agency, fire district, club, non-profit
agency or any subdivision, commission, department, bureau, agency or department of state or federal government
(including any quasi-governmental corporation) or of any interstate body.
(NN)
"pH" means the logarithm of the reciprocal of the hydrogen ion concentration (base 10).
(OO)
"Pollutant" means any dredged material, solid waste, incinerator residue, sewage, garbage, sewage sludge, sediment,
filter backwash, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded
equipment, rock, sand, cellar dirt, industrial or municipal or agricultural waste or effluent, petroleum or petroleum
products, including but not limited to oil; or any material which will likely alter the physical, chemical, biological or
radiological characteristics and/or integrity of water.
(PP)
"Private drinking water supply well" means any well established for the purpose of meeting all or part of a
person's potable water needs provided said well does not supply a public drinking water supply.
(QQ)
"Privately owned treatment works" means any facility which is owned by a private individual or private party or
corporation or other private entity and is used for the treatment of pollutants. This definition includes sewers, pipes if
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Regulation 12-190-008 (December 2011)
they convey wastewater to a privately owned treatment works as well as any equipment, buildings or machinery used
in the treatment operation.
(RR)
"Processing" means any activity that reduces the quantity of sludge or alters its chemical, biological, or physical
state.
(SS)
"Processes to Significantly Reduce Pathogens (PSRPs)" and "Processes to Further Reduce Pathogens
(PFRPs)" means the processes listed in Appendix 3 and Appendix 4, respectively, which will reduce pathogens in
sludge.
(TT)
"Public drinking water supply well" means any well supplying a water system with piped water for human
consumption, provided that such a system has at least 15 service connections or regularly serves an average of at least
25 individuals daily at least 60 days of the year.
(UU)
"Publicly owned treatment works" means any facility which is used for the treatment of pollutants and is owned by
the state or any political subdivision thereof, municipality, or other public entity, including any quasi-governmental
corporation. This definition includes sewers, pipes if they convey wastewater to a publicly owned treatment works
and any equipment, buildings or machinery used in the treatment operation.
(VV)
"Reclamation" means the addition of organic matter and nutrients to improve and/or promote establishment of
vegetation on soils which have been severely disturbed or which are in a poor vegetative state.
(WW) "Septage" is either liquid or solid material removed from a septic tank, cesspool, portable toilet, marine sanitation
device, or similar treatment works that receives only domestic sewage.
(XX)
"Sewage" or "wastewater" means human waste, or wastes from toilets and other receptacles intended to receive or
retain body waste, and any wastes, including wastes from human households, commercial establishments, and
industries.
(YY)
"Silviculture" means the growing or cultivation of forests.
(ZZ)
"Site" means contiguous land areas owned by the same person(s) on which sludge is managed even if the land area is
divided by a highway, railroad, water body, or boundary of a political subdivision.
(AAA) "Sludge" or "sewage sludge" means residue, partially solid, or solid, treated or untreated, resulting from the
treatment of sewage, including such residues from the cleaning of sewers, by processes, such as settling, flotation,
filtration and centrifugation, that does not meet the criteria for a hazardous waste. Domestic septage is not considered
sludge.
(BBB) "Solid Waste Regulations" means the "Rules and Regulations for Solid Waste Management Facilities", Rhode
Island Department of Environmental Management, April 1992, as amended.
(CCC) "Stockpiling" means the storage of sludge.
(DDD) "Surface water" means any waters of the State that are not groundwaters.
(EEE) "Toxicity Characteristic Leachate Procedure (TCLP)" means a quantitative analysis to determine hazardous
characteristics as described in 40 CFR Part 261, Appendix II.
(FFF)
"Transporter" means any person engaged in the removal or transporting of sludge.
(GGG) "Treated sludge" means sewage sludge that is treated by one or more of the methods listed in Appendix 4, Process
to Further Reduce Pathogens.
(HHH) "Vector" means a carrier that is capable of transmitting a pathogen from one organism to another, including but not
limited to flies and other insects, rodents, birds and other vermin.
(III)
"Waters of the state" or "the waters" means all surface water and groundwater of the State of Rhode Island,
including all tidewaters, territorial seas, wetlands, land masses partially or wholly submerged in water, and both inter-
and intra-state bodies of water which are, have been or will be used in commerce, by industry, for the harvesting of
fish and shellfish or for recreational purposes.
(JJJ)
"Well" means a bored, drilled or driven shaft or a dug hole, with a depth greater than its largest surface dimension,
through which groundwater flows under natural or induced pressure.
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Regulation 12-190-008 (December 2011)
(KKK) "Wellhead protection area" means that portion of the ground surface and subsurface area surrounding a public well
or wellfield through which water will move toward and reach such well or wellfield as designated by the Director in
accordance with the Rhode Island Wellhead Protection Program.
(LLL) "Wetlands" means those areas that are inundated or saturated by surface or groundwater at a frequency and duration
sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted
for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs and similar areas. For
freshwaters, wetlands are determined by the Office of Water Resources using the Rules and Regulations Governing
the Enforcement and Administration of the Freshwater Wetlands Act, as amended. Coastal wetlands are determined
by rules and regulations under the jurisdiction of the Coastal Resources Management Council.
RULE 6. SLUDGE MANAGEMENT OPERATIONS
(A) The owner or operator of a facility or site is required to operate and maintain properly all equipment and systems used to
achieve compliance with these rules and regulations. Proper operation and maintenance includes effective performance,
adequate funding, adequate staffing and training, and adequate laboratory and process controls, including appropriate
quality assurance procedures.
(B)
Upon any interruption in operations of the facility or site due to loss or reduction of power or other equipment failure,
the owner or operator shall control management of the facility or site to the extent necessary to maintain compliance
with these rules and regulations until such time as power or other equipment is restored or an alternative method of
management is provided.
(C)
The owner or operator shall take immediate action necessary to correct any non-compliance with these rules and
regulations when such non-compliance may have an adverse effect on public health or the environment.
(D) The owner or operator shall notify the Office of Water Resources in writing, at least ninety (90) days prior to any
alteration or modification of the facility or site, change in management practices of the facility or site, or any other
activity which may result in non-compliance with these rules and regulations.
(E)
The owner or operator shall immediately notify the Office of Water Resources of any substantial change in the volume
or composition of sludge resulting from the introduction of pollutants into the facility or site. The notice shall include
information on the quantity and composition of sludge, the source of the new pollutants or efforts made to discover the
source, and any impacts on management practices resulting from the change.
RULE 7. REQUIREMENTS FOR ORDER OF APPROVAL
(A) The owner or operator of a facility or site must obtain an Order of Approval. The owner or operator of the facility or site
must operate at all times in accordance with the Order of Approval, the completed Application for Order of Approval
and the Management Plan for the facility or site.
(B)
Except as provided in Rule 7(C) below, an Order of Approval shall be required for:
(1)
The processing, treatment, transporting, land application, land disposal, co-disposal (of sludge and solid waste),
incineration and/or distribution of sludge;
(2)
All sludge mixing facilities and sites where the resultant sludge is to be used on site or off site;
(3)
All sludge stockpiling facilities and sites; and
(4)
The closure of a land disposal facility or site.
(C)
Unless the Director determines that an Order of Approval is necessary for a specific facility or site to protect public
health and to avoid degradation of the environment, an Order of Approval shall not be required for:
(1)
The transportation of Class A Biosolids;
(2)
The interstate transportation of sludge that is not generated, processed, transferred, stored, used or disposed of in
the State of Rhode Island;
(3)
Any site upon which Class A Biosolids is land applied for beneficial use which meets the following conditions:
(a)
The Class A Biosolids is generated by a facility that holds a valid Order of Approval from the Department
to generate Class A Biosolids;
(b)
The owner of the site or the person land applying the Class A Biosolids is not the owner of the facility or
site where the Class A Biosolids is generated;
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Regulation 12-190-008 (December 2011)
(c)
The Class A Biosolids is stored at the land application site no longer than six (6) months prior to land
application;
(d)
The quantity of Class A Biosolids stored at the land application site is consistent with the appropriate
application rate and size of the land application area;
(e)
The stockpile area and land application area is not located within fifty (50) feet of any surface water;
(f)
Adequate erosion control is used to prevent material from entering any waters of the state;
(g)
The site complies with the department’s Office of Air Resources Air Pollution Control Regulation 17;
(h)
The person land applying the Class A Biosolids at the site possesses and follows a Department-approved
User’s Guide provided by the facility that generates the Class A Biosolids; and
(i)
Land application does not take place during the period starting on the first day of November and ending
the last day of February.
(4)
Any Class A Biosolids distribution facility and/or mixing facility or site, such as a landscaping company or soil
blending facility, or stockpile site which meets the following conditions:
(a)
The Class A Biosolids is generated by a facility that holds a valid Order of Approval from the Department
to generate Class A Biosolids;
(b)
The owner of the site is not the owner of the facility or site where the Class A Biosolids is generated;
(c)
The facility or site is not located within 50 feet of a surface water body;
(d)
The amount of unmixed Class A Biosolids stockpiled at the site does not exceed 500 cubic yards at any
one time (any mixed material that contains more than 40% Class A Biosolids by volume shall be
considered unmixed for the purposes of this storage limit);
(e)
Other than the mixing of Class A Biosolids with soil or appropriate soil amendment materials, no further
processing or treatment of the Class A Biosolids takes place at the facility or site;
(f)
The Class A Biosolids or mixed Class A Biosolids is intended for beneficial use;
(g)
If mixing takes place, the mixing process does not degrade the quality of the Class A Biosolids;
(h)
The site has adequate erosion control to prevent mixed or unmixed Class A Biosolids from entering waters
of the state;
(i)
The site complies with the Department’s Office of Air Resources Air Pollution Control Regulation 17; and
(j)
The owner or operator of the facility or site provides a department-approved User’s Guide or information
sheet to any person(s) that receives unmixed Class A Biosolids from the facility or site pursuant to Rules
12(A)(2)(a-b) of these rules and regulations.
(D) An Application for Order of Approval must be submitted at least ninety (90) days prior to the anticipated date of
operation of any proposed facility or site. Said application must be accompanied by the appropriate application fee along
with any plans, specifications and a Management Plan as stipulated in these rules and regulations. Where the facility or
site is not owned by the applicant, certified copies of any lease or contracted agreements or other documentation
acceptable to the Department providing the applicant with adequate authority to engage in the proposed activity at the
subject facility or site must also be submitted. Where such information has been previously submitted to the Director and
approved and where the applicant proposes to continue the previously approved means of sludge management or when
utilizing an approved site, the Director may waive the requirement that additional plans, specifications and Management
Plans accompany the application.
(E)
A person may request approval from the Director to conduct a one-time pilot project for the beneficial use of no more
than thirty (30) cubic yards of Class A Biosolids in those instances where the distributor that is to provide the Class A
Biosolids does not hold an Order of Approval from the department to generate or distribute Class A Biosolids. Such a
request must be submitted in writing and must include a description of the source of the sludge, lab analysis
demonstrating that the sludge meets Class A Biosolids standards and a detailed description of the nature of the pilot
project. An application fee is not required for such projects.
(F) The Director may require that the applicant provide notification of any Application for Order of Approval to all
potentially affected parties as determined by the Director. At a minimum, the applicant may be required to notify all
abutters of the proposed facility or site. The Commissioner may schedule a public hearing as required pursuant to Rhode
Island General Laws Chapter 42-35 to solicit public comment prior to rendering a decision on the application. The
applicant shall be required to pay the expenses for notice and hearing.
(G) The owner or operator of an approved facility or site who seeks to change the treatment, disposal, distribution or land
application methods, or who seeks to add facilities or sites, must apply for a new Order of Approval for such modifi-
cations at least ninety (90) days prior to the anticipated modification.
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(H) The Department must issue an Order of Approval on an application for a proposed facility or site prior to implemen-
tation of the sludge treatment, stockpiling, land application, disposal or distribution at the facility or site. Said approval
shall remain in full force and effect until terminated by the Director.
(I)
In those instances where sludge management at a facility or site is delegated by the owner to another person, it shall
remain the responsibility of the owner to meet all requirements of these rules and regulations and to submit the necessary
documents for the Director to issue an Order of Approval.
(J)
Approval of a facility or site involves an initial evaluation of the plan in accordance with Rule 8 of these rules and
regulations.
(K)
Upon receipt of an application the Department shall review the application for completeness. If the application is
incomplete, the Department shall list the information necessary to make the application complete and shall specify a date
for submitting the necessary information. Where the Department has deemed an application to be deficient, the
processing of the application will be suspended and the applicant given a deadline to correct said deficiencies to the
satisfaction of the Department. If the applicant fails or refuses to correct said deficiencies within the time period
specified or extension granted by the Department, the application shall be denied.
(L)
After an application is determined to be complete, the Department may request additional information from an applicant
but only when necessary to clarify, modify, or supplement previously submitted material. Requests for such additional
information will not render an application incomplete, but if the applicant fails or refuses to submit such information, the
application may be denied.
(M) During the review of an application, the Department shall determine whether a site visit(s) and inspection are necessary
in order to evaluate the application completely and accurately. If the Department decides that a site visit is necessary for
any reason in conjunction with the processing of an application, the applicant shall be notified and a site visit shall be
scheduled.
(N)
The department shall issue an Order of Approval when and if it determines that all applicable requirements of these rules
and regulations have been met.
(O) An owner of a facility or site may apply to the Director for a transfer of the Order of Approval to a new owner. The
current owner must apply to the Director in writing by certified mail of the proposed transfer at least ninety (90) days
prior to the proposed transfer date and must include the following information:
(1)
Name and address of the subject facility or site;
(2)
Name and address of new owner(s) and operator(s);
(3)
Names and addresses of the person(s) upon whom the Director may serve legal process;
(4)
A notarized statement signed by a duly authorized officer or agent of the new owner stating that he or she has
read the original Application for Order of Approval and believes that to the best of his or her knowledge there has
been no material change in the operations of the facility or site since the Order of Approval was issued or
describes the changes that have occurred since the Order of Approval was issued, and
(5)
A proposed transfer date on which the new owner will assume the Order of Approval and all accompanying
responsibility.
(P)
The Director may approve a change in the method of treatment, disposal, land application, or transportation of sludge
from a publicly owned treatment works or privately owned treatment works for emergency situations without requiring
the owner or operator of the facility to first apply for an Order of Approval. The owner or operator of the facility must
submit to the Director an Application for Order of Approval within fourteen (14) days of receiving an emergency
approval from the Director.
(Q) The owner or operator of an approved facility or site shall furnish to the Department within a reasonable time, any
information which the Department may request to determine whether cause exists for modifying, suspending, or
revoking the facility or site’s Order of Approval. The owner or operator of an approved facility or site shall also furnish
to the Department upon request, copies of records required by the Order of Approval.
(R)
The owner or operator of an approved facility or site shall retain records of all information required under the Order of
Approval for a period of at least five (5) years from the date that record was generated. This period may be extended by
request of the Department at any time.
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Regulation 12-190-008 (December 2011)
RULE 8. APPLICATION FOR ORDER OF APPROVAL
This rule outlines the information that must be filed with the Department when applying for an Order of Approval to manage
sludge. This Rule does not apply to an applicant that proposes to only transport sludge (see Rule 14). A registered professional
engineer or land surveyor must stamp plans and submissions required below. The plans should be scaled to fit on a standard 24
x 36 inch sheet wherever possible. Larger sheets must be used when the minimum scale requirements do not permit the use of
24 x 36 inch sheets. The Director may require additional information if necessary to satisfy the requirements of these rules and
regulations.
(A) Application Form
The applicant shall provide information on the proposed sludge management activity on an application form obtained
from the department.
(B)
Initial Investigation Plans
Copies of the latest U.S. Geological Topographic Map, Farm Services Agency aerial maps and the United States
Department of Agriculture Soil Survey Map, with the facility or site outlined and an indication of the required setbacks
shall be submitted to the Office of Water Resources prior to all other required information. This will allow initial
evaluation of the plan relating to wetlands, aquifers, and soil type before large investigatory and developmental
expenditures are made. A report of the evaluation shall be made to the applicant. The report shall list what submissions,
from Rules 8(C-G) below and from other Rules in these rules and regulations specific to the proposed management
activity must be submitted to the Office of Water Resources to obtain an Order of Approval.
(C)
Radius Plan
A radius plan including all the information listed below shall be submitted. The radius plan must be drawn at a minimum
scale of one inch to two hundred feet (1"=200') and include all areas within a one quarter (1/4) mile radius from all
property lines of the site. The required information includes:
(1)
All buildings;
(2)
All water supplies (wells, etc.);
(3)
All surface watercourses and wetlands;
(4)
All roads;
(5)
All boring locations (where applicable);
(6)
Legal boundaries of facility or site;
(7)
North arrow;
(8)
Extent of one hundred (100) year flood plain (where applicable), and
(9)
Local zoning and permitting requirements.
(D) Soil Borings
Borings are required for all proposed areas to be filled at a land disposal site or developed as an uncovered sludge
treatment facility or site. Soil borings are not required for proposed land application sites. The minimum number of
borings required is listed below:
Proposed No. of Acres
No. of Borings
1 – 10
3
11 - 50
6
51 - 100
12
101 - 200
18
Over 200
24 plus 1 for every 10 acres over 200
Split spoon samples shall be collected at a minimum of five (5) foot intervals. A soil description shall be provided for
each split spoon sample. All borings should be driven to a minimum depth of twenty (20) feet below the proposed
bottom level of sludge or to refusal. The following information contained on the boring logs should be submitted:
(1)
Depth of the maximum elevation of the groundwater table (to be measured at a minimum of twenty four (24)
hours after the boring is taken);
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Regulation 12-190-008 (December 2011)
(2)
A detailed soil profile description to a depth of four (4) feet must be submitted for each soil mapping unit on the
site. The required information includes:
(a)
Color of each horizon;
(b)
Texture of each horizon;
(c)
Depth of each horizon;
(d)
Depth to mottles (if any);
(e)
Amount of coarse fragments (if any);
(f)
Depth to bedrock (if encountered);
(g)
Consistence or relative density, and
(h)
Slope.
(3)
Method of boring;
(4)
Blow counts, and
(5)
Date boring was taken.
The boring should be located to give the best indications of subsurface conditions for the whole site that can be obtained
considering the limited number of borings required. The groundwater table elevation determination shall be made when
the water table is highest; this occurs usually during the months of January through April. (Specific dates may be
determined on a yearly basis by the Director.) All boring holes must be maintained for future water table elevation
determinations. If the Director feels it necessary, additional borings may be required.
(E)
Groundwater Survey
A groundwater survey showing the maximum ground water elevations, the direction of groundwater flow, and an
estimation of the rate of flow (including calculations) shall be submitted.
(F)
Site Delineation
The following areas at the proposed site shall be marked with stakes at the time of the engineering survey. The stakes
must be a minimum of two (2) feet high, clearly visible and maintained at all times. All sites shall include the following
delineations:
(1)
Areas enclosed by legal boundaries; and
(2)
Areas to be developed or filled as indicated in the Operation and Maintenance Plan.
(G)
Management Plan
A Management Plan shall be submitted detailing operating procedures for the facility or site.
RULE 9. LAND DISPOSAL
This rule applies to the disposal of sludge by burial. All applications for land disposal sites are to be in accordance with the
design and operational requirements for solid waste landfills as promulgated by the Office of Waste Management, Rhode
Island Department of Environmental Management. (Sludge burial at a solid waste landfill is covered under Rule 16 of these
rules and regulations.) All land disposal sites must operate under an Order of Approval and must meet the following
requirements.
(A) Condition of Sludge
Sludge that is land disposed must be treated by one or more of the Processes to Significantly Reduce Pathogens listed in
Appendix 1 of these rules and regulations. Such treatment is the responsibility of the owner or operator of the facility
performing the Process to Significantly Reduce Pathogens. Sludge that meets the hazardous waste criteria shall not be
land disposed.
(B)
Groundwater
A minimum of five (5) feet of soil is required between the lowest level of deposited sludge and the seasonal high
groundwater table as determined by a DEM-licensed Class IV soil evaluator in accordance with the procedures described
in the Department’s Rules Establishing Minimum Standards Relating to Location, Design, Construction and
Maintenance of Onsite Wastewater Treatment Systems. The determination of the seasonal high groundwater table must
be witnessed by the Department. In addition, a minimum of five (5) feet of soil is required between the highest level of
bedrock and lowest level of deposited sludge. If the owner or applicant seeks a variance from the separation distances
under Rule 22 of these rules and regulations, the Director may require the installation of an impermeable liner system
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Regulation 12-190-008 (December 2011)
and leachate collection and treatment system or other means to prevent leachate from reaching the groundwater as a
condition for the granting of such variance.
(C)
Surface Water
No sludge shall be land disposed within 200 feet of any body of surface water. No sludge shall be land disposed within
one thousand two hundred (1200) feet from the center line of the following freshwater rivers: Ashaway River, Beaver
River, Blackstone River, Chepachet River, Clear River, Falls River, Flat River, Hunt River, Moshassuck River, Moosup
River, Narrow River, Pawcatuck River, Pascoag River, Pawtuxet River, and Wood River. No sludge shall be land
disposed of in the watershed of any surface water used as a public drinking water supply. The Director may, if
necessary, require continuous monitoring of any surface watercourses in the vicinity of the proposed land disposal site.
Such monitoring shall be of a type and frequency determined by the Director on a case-by-case basis and shall be the
responsibility of the owner or operator.
(D) Drinking Water Wells
No sludge shall be land disposed within one thousand (1,000) feet of any private drinking water supply well or within
the Wellhead Protection Area for a public drinking water supply well. Land disposal of sludge shall be in accordance
with the Rhode Island Groundwater Protection Act of 1985, 46-13.1 and any rules and regulations promulgated
thereunder.
(E)
Distance to Buildings
No sludge shall be land disposed within six hundred (600) feet of any domestic, commercial or industrial structure not
associated with the proposed land disposal site.
(F)
Distance to Property Lines
No sludge shall be land disposed within two hundred (200) feet of a property line.
(G) Monitoring Wells
For the purpose of monitoring groundwater conditions, the owner or operator of a land disposal site shall install and
maintain monitoring wells of a number and type approved by the Director and at locations chosen by the Director. The
owner or operator of the site is responsible for analysis of groundwaters in accordance with instructions of the Director.
The Director shall determine the testing and reporting frequency.
(H) Erosion Control
The owner or operator shall make provisions to have the land disposal site, including the fill surface, graded and
provided with a drainage system to minimize surface water runoff onto and into the fill, to drain off rain water falling on
the fill and to prevent the collection of standing water.
(I)
Transportation
All transportation of sludge shall comply with Rule 14 of these rules and regulations.
(J)
Cover Material
A soil cover of at least six (6) inches shall be applied to all sludge deposits daily to control disease vectors and nuisance
conditions. Final cover in terminating the use of a land disposal site shall be two (2) feet in depth.
(K) Odor Control
Any land disposal site must comply with the Rhode Island Department of Environmental Management, Office of Air
Resources Air Pollution Control Regulation 17, as amended, or other rules and regulations pertaining to odors.
(L)
Analysis of Sludge
All sludge intended for land disposal may be required to be tested using the Toxicity Characteristic Leaching Procedure
for the parameters listed in Appendix 4 of these rules and regulations and the results submitted to the Office of Water
Resources. The owner or operator of the facility is responsible for all analyses. The Director shall determine the testing
and reporting frequency depending upon the amount of sludge produced.
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Regulation 12-190-008 (December 2011)
(M) Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for land disposal of sludge and
must be stamped by a registered professional engineer or land surveyor. These submissions are in addition to the
submission requirements listed in Rule 8.
(1)
Site Plan
A site plan shall be submitted for all areas within the land disposal site. The site plan must be drawn to a
minimum scale of one inch to one hundred feet (1"=100'). The site plan must include the following information:
(a)
Initial ground contours at five-foot intervals;
(b)
Final proposed contours at five-foot intervals;
(c)
Boring locations;
(d)
Proposed leachate collection and treatment systems;
(e)
Proposed gas controls (if any);
(f)
Buildings (if any);
(g)
Wells (if any);
(h)
Surface water courses (if any);
(i)
Roads (if any);
(j)
Cross section lines (see Rule 9(M)(2));
(k)
Groundwater monitoring wells;
(l)
Legal boundaries of site;
(m) Power lines, pipe lines, rights of way and other utilities;
(n)
Proposed fences;
(o)
Weighing facilities (if any);
(p)
North arrow;
(q)
Location of borrow areas (if any), and
(r)
Boundaries of areas to be filled.
(2)
Cross Section
Typical cross section plans of the land disposal site shall be submitted. A minimum of two cross sections are
required of right angled center lines passing through the approximate middle of the land disposal site. The cross
section plans should be drawn using a minimum horizontal scale of one inch to one hundred feet (1"=100'). All
required details should be drawn using equal vertical and horizontal scales. The cross section plans must include
the following information:
(a)
Proposed lifts;
(b)
Virgin ground;
(c)
Maximum groundwater table;
(d)
Bedrock location;
(e)
Side slopes;
(f)
Details of surface drains and ditches;
(g)
Final fill elevation and grades;
(h)
Limits of excavations;
(i)
Final cover elevations;
(j)
Details on access road construction;
(k)
Details of leachate collection and treatment systems;
(l)
Details of gas venting facilities (if any), and
(m)
Details of groundwater monitoring wells with soil profiles.
(3)
Management Plan
The Management Plan shall include the following information:
(a)
Type of method to be used (trench, area, etc.);
(b)
Provisions for appropriate liners;
(c)
Proposed sequence of operation;
(d)
Estimate of amount of cover material available or to be purchased and from whom;
(e)
Operating hours;
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Regulation 12-190-008 (December 2011)
(f)
Personnel and duties;
(g)
Projected use of completed land disposal site;
(h)
Dust control program;
(i)
Vector control program;
(j)
Odor control program;
(k)
Procedures to control erosion and sedimentation and to promote vegetative growth in completed areas;
(l)
Equipment to be on site during operating hours;
(m)
Substitute equipment available;
(n)
Communications equipment available;
(o)
Population and service area;
(p)
Winter operations;
(q)
Provisions for limiting access such as fencing, signs, etc.;
(r)
Weighing facilities (if any);
(s)
Estimated life of land disposal site;
(t)
Aesthetic considerations;
(u)
Leachate treatment operations, and
(v)
Surface drainage control methods.
(4)
Closure Plan
A closure plan for all areas within the land disposal site shall be submitted. The closure plan must be drawn to a
minimum scale of one inch to one hundred feet (1" = 100'). The closure plan must include the following
information:
(a)
Date of proposed closure;
(b)
Methods of restricting access and preventing additional disposal;
(c)
Methods of protecting ground and surface water and controlling air emissions;
(d)
Date on which all land disposal areas will be covered with two (2) feet of final cover;
(e)
Date of installation of impermeable covering, if any, and planting with vegetation;
(f)
Final grades and method of maintaining final grades and promoting surface runoff;
(g)
Fences and gates;
(h)
Location and description of groundwater and surface water monitoring stations and provision that such
monitoring shall continue on a quarterly basis for up to five (5) years after the site is closed, and
(i)
Legal boundaries.
In addition, the applicant shall set aside a post-closure monitoring fund for a monitoring period of up to thirty
(30) years subsequent to the closure of the land disposal site. The applicant shall establish a post-closure
monitoring and maintenance fund designated "in trust for the post-closure monitoring and maintenance of the
land disposal site." A bank or other financial institution approved by the Director shall act as trustee of the trust
fund. The trust instrument shall provide that the Director shall have the right to use such part of the fund as is
necessary to carry out the post-closure monitoring and maintenance for the land disposal site in accordance with
these rules and regulations. The trust instrument shall also provide that the Director shall determine whether post-
closure expenditures are reasonable and in accordance with the closure plan. The trustee shall release these funds
upon receipt of a written request from the Director.
(5)
Analysis of Sludge
All results of the sludge analysis required in Rule 9(L) shall be submitted.
RULE 10. LAND APPLICATION
This rule applies to the land application of sludge that has been treated by one or more of the Processes to Significantly Reduce
Pathogens listed in Appendix 3 of these rules and regulations. (This rule does not apply to land application of Class A
Biosolids or any sludge that has been treated by one of the Processes to Further Reduce Pathogens.) All land application sites
must operate under an Order of Approval and must meet the following requirements:
(A) Sludge and Soil Analysis
All sludge intended for land application may be required to be tested using the Toxicity Characteristic Leaching
Procedure for the parameters listed in Appendix 4 and the results submitted to the Office of Water Resources. Sludge
intended for land application must meet the limits established in Appendix 6 for metals and must be tested for the listed
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Regulation 12-190-008 (December 2011)
characteristics. In addition, soil from the proposed land application site, with the exception of silvicultural lands, must be
tested for metals listed in Appendix 6 and for the parameters listed in Rule 10(S)(3) below. The Director shall determine
the testing and reporting frequency. All sludge analyses shall be the responsibility of the owner or operator of the
facility; all soil analyses shall be the responsibility of the applicant.
(B)
Land Application Rates
All sludge intended for land application must be applied at an annual rate not to exceed the amount necessary to supply
adequate available nitrogen for crop production using good agricultural or silvicultural practices or not to exceed the
maximum annual rates recommended by the U.S. Department of Agriculture to achieve fertilizer benefits and soil
improvement.
(C)
Cumulative Loading Rates
The maximum amount of sludge that can be applied to a land application site shall be calculated using the procedure
established in Appendix 7. The amount of metals in the soil shall be deducted from each calculation.
(D) Condition of Sludge
Sludge intended for land application shall be treated by one of the Processes to Significantly Reduce Pathogens listed in
Appendix 1 of these rules and regulations and shall meet one of the Vector Attraction Reduction Requirements listed in
Appendix 3 of these rules and regulations. Such treatment shall be the responsibility of the owner or operator of the
facility. Sludge intended for land application shall not meet the criteria for hazardous waste.
(E)
Crops
Food crops with harvested parts that touch the sewage sludge/soil mixture and are totally above the land surface shall not
be harvested for fourteen (14) months after application of sewage sludge. Food crops with harvested parts below the
surface of the land shall not be harvested for twenty (20) months after application of sewage sludge when the sewage
sludge remains on the land surface for four (4) months or longer prior to incorporation into the soil. Food chain crops
with harvested parts below the surface of the land shall not be harvested for thirty eight (38) months after application of
sewage sludge when the sewage sludge remains on the land surface for less than four (4) months prior to incorporation
into the soil. Food crops with harvested parts that do not touch the sewage sludge/soil mixture, feed crops and fiber
crops shall not be harvested for thirty (30) days after application of sewage sludge.
(F)
Turf
Turf grown on land where sewage sludge is applied shall not be harvested for one (1) year after the last application of
sewage sludge has occurred when the harvested turf is placed on either land with a high potential for public exposure or
a lawn.
(G) Public Access
Public access to the land application site shall be prohibited by the owner or operator until one (1) year has passed since
the last application of sewage sludge to land with a high potential for public exposure, such as a park or ball field or
thirty (30) days has passed since the last application of sewage sludge to land with a low potential for public exposure,
such as private farmland.
(H) Animal Grazing
Animals whose products are consumed by humans shall not be allowed to graze on land where sewage sludge is applied
for thirty (30) days after the last application of sewage sludge has occurred.
(I)
Frozen Ground
No sludge shall be applied to frozen, flooded or snow-covered ground unless appropriate erosion and runoff control
measures are provided.
(J)
Odor Control
Any land application project must comply with the Department's Office of Air Resources Air Pollution Control
Regulation 17, as amended, or other rules and regulations pertaining to odors.
(K) Groundwater
A minimum of two (2) feet of soil is required between the lowest level of applied sludge and the seasonal high
groundwater table as determined by a DEM-licensed Class IV soil evaluator in accordance with the procedures described
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Regulation 12-190-008 (December 2011)
in the Department's Rules Establishing Minimum Standards Relating to Location, Design, Construction and
Maintenance of Onsite Wastewater Treatment Systems. The determination of the seasonal high groundwater table must
be witnessed by the Department. In addition, a minimum of three (3) feet of soil is required between the highest level of
bedrock and the lowest level of applied sludge.
(L)
Surface Water
No sludge shall be land applied within two hundred (200) feet of any body of surface water. No sludge shall be applied
to land within the watershed of any surface water used as a public drinking water supply. The Director may, if necessary,
require continuous monitoring of any surface watercourses in the vicinity of the proposed land application site. Such
monitoring shall be of a type and frequency determined by the Director on a case-by-case basis and shall be the
responsibility of the owner or operator.
(M) Drinking Water Wells
No sludge shall be land applied within one thousand (1,000) feet of any private drinking water supply well or within the
Wellhead Protection Area for a public drinking water supply well. Land application of sludge shall be in accordance
with the Rhode Island Groundwater Protection Act of 1985, General Laws Chapter 46-13.1 and any rules and
regulations promulgated thereunder.
(N) Distance to Buildings
No sludge shall be land applied within four hundred (400) feet of any domestic, commercial or industrial structure not
associated with the proposed land application project.
(O) Distance from Property Lines
No sludge shall be land applied within one hundred (100) feet of a property line. This requirement will be met if consent
from the adjacent landowner is received.
(P)
Monitoring Wells
Groundwater monitoring shall be of a type and frequency determined by the Director on a case-by-case basis and shall
be the responsibility of the owner or operator.
(Q) Erosion Control
Soil erosion on all land application sites shall be limited to conditions which meet Resource Management System
Quality Criteria for soil erosion as defined in the USDA Natural Resources Conservation Service (NRCS) Field Office
Technical Guide for Rhode Island. Erosion control methods on all land application sites shall be consistent with practice
standards and specifications in the NRCS Field Office Technical Guide for Rhode Island. Sediment and runoff shall be
controlled on all land application sites consistent with the measures within the Rhode Island Soil Erosion and Sediment
Control Handbook,RI Department of Environmental Management, USDA Soil Conservation Service and Rhode Island
State Conservation Committee, 1989.
(R)
Transportation
All transportation of sludge shall comply with Rule 14 of these rules and regulations.
(S)
Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for land application of sludge
and must be stamped by a registered professional engineer or land surveyor. These submissions are in addition to the
submission requirements listed in Rule 8.
(1)
Site Plan
A site plan for all areas within the land application site shall be submitted. The site plan must be drawn to a
minimum scale of one inch to one hundred feet (1"=100'). The site plan must include the following information:
(a)
Detailed soil map;
(b)
Buildings (if any);
(c)
Wells (if any);
(d)
Surface watercourses (if any);
(e)
Roads (if any);
(f)
Groundwater monitoring wells;
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Regulation 12-190-008 (December 2011)
(g)
Proposed erosion control and runoff collection and treatment systems (if any);
(h)
Legal boundaries of site;
(i)
Power lines, pipe lines, rights of way and other utilities, and
(j)
North arrow.
(2)
Soil Description
A detailed soil profile description to a depth of four (4) feet must be submitted for each soil-mapping unit on the
land application site. The required information includes:
(a)
Color of each horizon;
(b)
Texture of each horizon;
(c)
Depth of each horizon;
(d)
Depth to mottles (if any);
(e)
Amount of coarse fragments (if any);
(f)
Depth to bedrock (if encountered);
(g)
Consistence or relative density, and
(h)
Slope.
(3)
Laboratory Data
Representative samples shall be taken from the plow layer within the proposed land application site. The
following data shall be submitted for each sample:
(a)
Soil density;
(b)
Depth of sample, and
(c)
Moisture content (%).
(4)
Management Plan
The Management Plan shall include the following information:
(a)
Type of land application method to be used;
(b)
Detailed description of the land application project and the proposed sequence of operation;
(c)
Provisions for compliance with Rule 10 (A–R) of these rules and regulations;
(d)
Personnel and duties;
(e)
Projected use of the land application site;
(f)
Procedures to control dust, vectors and odor;
(g)
Procedures to control erosion, sedimentation and promote vegetative growth;
(h)
Equipment to be utilized and substitute equipment to be on-site;
(i)
Provisions to control access;
(j)
Estimated life of land application site, and
(k)
Aesthetic considerations.
(5)
Sludge and Soil Analysis
The results of the sludge and soil analysis required in Rule 10(A) of these rules and regulations shall be
submitted.
RULE 11. TREATMENT OF SLUDGE
This rule applies to the treatment of sludge by one of the Processes to Further Reduce Pathogens listed in Appendix 2 of these
rules and regulations. All sludge treatment facilities must operate under an Order of Approval and must meet the following
requirements:
(A) Sludge Treatment Method
All methods of sludge treatment must meet one of the Processes to Further Reduce Pathogens listed in Appendix 2 of
these rules and regulations and must meet one of the Vector Attraction Reduction Requirements listed in Appendix 3 of
these rules and regulations.
(B)
Sludge Composting Methods
When sludge is treated by composting as provided in Appendix 2(A) of these rules and regulations, one of the following
composting methods shall be used:
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Regulation 12-190-008 (December 2011)
(1)
Aerated Static Pile
Sludge must be maintained at operating conditions of 55°C or greater for three (3) consecutive days. The sludge
must remain in the active phase for a minimum of twenty one (21) days in a pile not to exceed twelve (12) feet in
height. At the end of the active phase, the material must be cured for a minimum of thirty (30) days in a stockpile
not to exceed twelve (12) feet in height unless the Department determines that such curing is not necessary. Such
composting operations shall be provided with an appropriate leachate collection system, shall be built on an
impervious surface and shall be protected from direct rainfall by a roof to reduce the amount of leachate and
runoff.
(2)
Windrow
Sludge must be maintained at operating conditions of 55°C or greater for at least fifteen (15) consecutive days
during the active phase. The sludge must remain in the active phase for a minimum of twenty one (21) days in a
pile, with the sludge being turned at least once every three (3) days. Height of the pile shall be compatible with
the equipment used for turning the sludge. The active phase shall be followed by a curing period of at least thirty
(30) days in a curing pile not to exceed twelve (12) feet in height unless the Department determines that such
curing is not necessary. Such composting operations shall be provided with an appropriate leachate collection
system, shall be built on an impervious surface and shall be protected from direct rainfall by a roof to reduce the
amount of leachate and runoff.
(3)
In-vessel
Sludge must be maintained at operating conditions of 55°C or greater for three (3) consecutive days. The sludge
must remain in the active phase for a minimum of fourteen (14) days. The active and curing phases are to be
maintained for a total minimum period of thirty (30) days. If sludge is cured in a curing pile, the pile is not to
exceed twelve (12) feet in height.
(C)
Groundwater
A minimum of two (2) feet of soil is required between the proposed sludge treatment surface and the seasonal high
groundwater table as determined by a DEM-licensed Class IV soil evaluator in accordance with the procedures
described in the Department's Rules Establishing Minimum Standards Relating to Location, Design, Construction and
Maintenance of Onsite Wastewater Treatment Systems. The determination of the seasonal high groundwater table must
be witnessed by the Department.. In addition, a minimum of three (3) feet of soil is required between the highest level of
bedrock and the sludge treatment surface. If the applicant seeks a variance from these separation distances under Rule 22
of these rules and regulations, the applicant must demonstrate to the satisfaction of the Office of Water Resources that
the sludge treatment facility or site will not generate leachate. Otherwise, the Director will require the installation of an
impermeable liner system and leachate collection and treatment system or other means to prevent leachate from reaching
the groundwater as a condition for the granting of such variance.
(D)
Surface Water
No sludge shall be treated within two hundred (200) feet of any body of surface water. No sludge shall be treated within
the watershed of any surface water used as a public drinking water supply. The Director may, if necessary, require
continuous monitoring of any surface watercourses in the vicinity of the sludge treatment facility or site. Such
monitoring shall be of a type and frequency determined by the Director on a case-by-case basis and shall be the
responsibility of the owner or operator of the facility or site. If the applicant seeks a variance from these separation
distances under Rule 22 of these rules and regulations, the applicant must demonstrate to the satisfaction of the
Department that any runoff from the sludge treatment facility or site will not impact surface water as a condition for the
granting of such variance.
(E)
Drinking Water Wells
No sludge shall be treated within one thousand (1,000) feet of any private drinking water supply well or within the
Wellhead Protection Area for a public drinking water supply well. Any sludge treatment facility or site shall comply
with the Rhode Island Groundwater Protection Act of 1985, General Laws Chapter 46-13.1 and any rules and regula-
tions promulgated thereunder. If the applicant seeks a variance from these separation distances under Rule 22 of these
rules and regulations, the applicant must demonstrate to the satisfaction of the Department that the sludge treatment
facility or site will not generate leachate as a condition for the granting of such variance.
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Regulation 12-190-008 (December 2011)
(F)
Distance to Property Lines
No sludge shall be composted within four hundred (400) feet of a property line. If the applicant seeks a variance from
this separation distance under Rule 22 of these rules and regulations, the Director will require that the facility be
completely enclosed as a condition for the granting of such variance.
(G) Monitoring Wells
For the purpose of monitoring groundwater conditions, the owner or operator of a sludge treatment site shall install and
maintain monitoring wells of a number and type approved by the Director and at locations chosen by the Director. The
owner or operator of the site is responsible for analysis of groundwater in accordance with instructions of the Director.
The Director shall determine the testing and reporting frequency. If the applicant seeks a variance from this requirement,
the applicant must demonstrate to the satisfaction of the Department that the sludge treatment operation will not generate
leachate.
(H) Transportation
All transportation of sludge shall comply with Rule 14 of these rules and regulations.
(I)
Stockpiling
All stockpiling of sludge and treated sludge shall comply with Rule 13 of these rules and regulations.
(J)
Sludge and Bulking Agent Analysis
All sludge intended for treatment may be required to be tested using the Toxicity Characteristic Leaching Procedure for
the parameters listed in Appendix 4 of these rules and regulations and the results submitted to the Office of Water
Resources. The Director shall determine the testing and reporting frequency. For composting facilities, any bulking
agents utilized in the operation may also be required to be tested. Sludge analyses shall be the responsibility of the
owner or operator of the facility that generates the sludge; bulking agent analyses shall be the responsibility of the owner
or operator of the sludge composting facility.
(K) Condition of Sludge and Bulking Agents
All sludge intended for treatment and all bulking agents shall not meet the criteria for hazardous waste.
(L)
Odors
Any sludge treatment facility must comply with the Department's Office of Air Resources Air Pollution Control
Regulation 17, as amended, and any other rules and regulations pertaining to odors.
(M) Treated Sludge Quality
Any treated sludge that meets all the limits established in Appendix 5 of these rules and regulations shall be considered
Class A Biosolids; the requirements and restrictions for the distribution and use of Class A Biosolids are listed in Rule
12(A) and 12 (B) of these rules and regulations. Any treated sludge that does not meet the metals limits established in
Appendix 5 but meets the metals limits established in Appendix 6 of these rules and regulations shall be considered
Class B Biosolids; the requirements and restrictions for the use of Class B Biosolids are listed in Rule 12(C) of these
rules and regulations. Any treated sludge that does not meet the metals limits established in Appendix 6 shall be
considered Class C Biosolids; the requirements and restrictions for the use and disposal of Class C Biosolids are listed in
Rule 12(D) of these rules and regulations.
(N) Treated Sludge Analysis
Class A Biosolids must be tested for the metals and the pathogens listed in Appendix 5. Class B Biosolids and Class C
Biosolids must be tested for the metals and the characteristics listed in Appendix 6. All results must be submitted to the
Office of Water Resources. The Director shall determine the testing and reporting frequency. All treated sludge analysis
shall be the responsibility of the owner or operator of the sludge treatment facility.
(O) Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for a sludge treatment facility or
site and must be stamped by a registered professional engineer or land surveyor. These submissions are in addition to the
submission requirements listed in Rule 8.
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Regulation 12-190-008 (December 2011)
(1)
Site Plan
A site plan including all of the information listed below for all areas within the sludge treatment site shall be
submitted. The site plan must be drawn to a minimum scale of one inch to one hundred feet (1"=100'). The
required information includes:
(a)
Initial ground contours at five-foot intervals;
(b)
Final proposed contours at five-foot intervals;
(c)
Boring locations;
(d)
Proposed leachate collection and treatment systems;
(e)
Proposed gas controls (if any);
(f)
Buildings (where applicable);
(g)
Wells (if any);
(h)
Surface watercourses and other wetlands;
(I)
Roads;
(j)
Groundwater monitoring wells;
(k)
Legal boundaries of site;
(l)
Power lines, pipelines, rights of way and other utilities;
(m)
Proposed fences;
(n)
Weighing facilities (if any), and
(o)
North arrow.
(2)
Management Plan
The Management Plan shall include the following information:
(a)
Detailed description of the sludge treatment method to be used and the proposed sequence of operation;
(b)
Use of bulking agent and procedures for temperature control (if any);
(c)
Operating hours;
(d)
Personnel and duties;
(e)
Procedures to control dust, vectors and odors;
(f)
Provisions for the immediate treatment of all sludge;
(g)
Provisions for the proper storage of treated sludge;
(h)
Procedures to control erosion and sedimentation;
(I)
Equipment to be on-site during operating hours;
(j)
Substitute equipment available;
(k)
Communications equipment available;
(l)
Population and service area;
(m)
Winter operations;
(n)
Provisions for limiting access;
(o)
Provisions for land application and/or disposal of treated sludge;
(p)
Weighing facilities (if any);
(q)
Estimated life of the sludge treatment facility;
(r)
Aesthetic considerations;
(s)
Leachate treatment operations, and
(t)
Surface drainage control measures.
(3)
Sludge and Bulking Agent Analysis
The results of the sludge and bulking agent analysis required in Rule 11(H) of these rules and regulations shall be
submitted.
RULE 12. DISTRIBUTION AND LAND APPLICATION OF TREATED SLUDGE
This rule applies to the distribution and land application of treated sludge.
(A) Distribution of Class A Biosolids
This subrule applies to the distribution of Class A Biosolids. Except as provided in Rule 7(C)(4), all distribution
facilities or sites must operate under an Order of Approval and must meet the following requirements.
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Regulation 12-190-008 (December 2011)
(1)
Packaged Distribution of Class A Biosolids
Packaged distribution shall mean Class A Biosolids that are sold or given away in a bag or other container for
application to the land. The container shall hold no more than one hundred (100) pounds of Class A Biosolids.
The distributor shall provide the following information to the user on a label when Class A Biosolids are
packaged:
(a)
The name and address of the generator of the product;
(b)
A statement that the product is derived from sewage sludge;
(c)
Instructions on the proper use of the product for various applications (for example, on lawns). This must
include a statement that the annual product application rate should not be exceeded, if applicable; and
(d)
Class A Biosolids that are lead safe and are intended for use as mulch must include a statement that the
product is lead safe but not lead free.
(2)
Bulk Distribution of Class A Biosolids
Bulk distribution shall mean Class A Biosolids that are sold or given away in bulk or in a container holding more
than one hundred (100) pounds of Class A Biosolids. The requirements for the distribution of bulk Class A
Biosolids vary based on volume as follows:
(a)
Less Than Twenty-Five (25) Cubic Yards
Any distributor of Class A Biosolids shall provide the information from Rule 12(A)(1)(a-d), in writing, to
all users taking less than twenty-five (25) cubic yards per day. In addition, the distributor shall inform the
user, in writing, that the Class A Biosolids shall not be further processed, stockpiled or distributed without
prior approval from the Department unless the conditions of Rule 7(C)(4) are met.
(b)
More Than Twenty-Five (25) Cubic Yards
Any distributor of Class A Biosolids must provide a User's Guide to all users taking more than twenty-five
(25) cubic yards per day. The User's Guide shall be provided to the distributor by the Department and shall
include instructions on the proper use of the product for various applications. The distributor must provide
the instructions for the product to the Department so that they can be incorporated into the User's Guide.
(c)
Record Keeping
Any distributor that distributes Class A Biosolids in bulk must maintain written records of the following
information when a user or another distributor is provided with more that twenty-five (25) cubic yards per
day: (i) date the Class A Biosolids was taken; (ii) name of user; (iii) amount of Class A Biosolids taken;
(iv) location where Class A Biosolids are to be applied; and (v) signature of the operator. Said records
must be available for inspection by state and federal officials.
(3)
Stockpiling
The stockpiling of Class A Biosolids shall comply with Rule 13 of these rules and regulations.
(4)
Odor Control
Any distribution site must comply with the Department's Office of Air Resources Air Pollution Control
Regulation 17, as amended, or other rules and regulations pertaining to odors.
(5)
Transportation
All transportation of sludge shall comply with Rule 14 of these rules and regulations.
(6)
Licensing
Any facility or site that distributes packaged or bulk Class A Biosolids must comply with the Department's Office
of Natural Resource Services' Commercial Fertilizer Law, as amended, (RI Gen. Law Chap. 2-7) and any other
rules and regulations pertaining to fertilizer and soil amendment products. All fertilizer and soil amendment
products must be registered with the Office of Natural Resource Services before being offered for sale.
(7)
Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for a treated sludge
distribution facility or site and must be stamped by a registered professional engineer or land surveyor. These
submissions are in addition to the submission requirements listed in Rule 8.
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Regulation 12-190-008 (December 2011)
(a)
Site Plan
A site plan including all of the information listed below for all areas within the treated sludge distribution
site shall be submitted. The site plan must be drawn to a minimum scale of one inch to one hundred feet
(1"=100'). The required information includes:
(i)
Initial ground contours at five-foot intervals;
(ii) Final proposed contours at five-foot intervals;
(iii) Boring locations;
(iv) Proposed leachate collection and treatment systems;
(v) Buildings (where applicable);
(vi) Treated sludge stockpile areas;
(vii) Wells (if any);
(viii)Surface watercourses and other wetlands;
(ix) Roads;
(x) Groundwater monitoring wells;
(xi) Legal boundaries of site;
(xii) Power lines, pipelines, rights of way and other utilities;
(xiii)Proposed fences;
(xiv) Weighing facilities (if any), and
(xv) North arrow.
(b)
Management Plan
The applicant shall submit a Management Plan describing compliance with the provisions of Rule
12(A)(1–6) of these rules and regulations.
(c)
Stockpiling
The applicant shall submit a copy of the latest U.S. Geological Topographic Map with the distribution site
outlined and an indication of the Class A Biosolids stockpile areas. This requirement shall be waived if the
applicant proposes to stockpile Class A Biosolids in an enclosed structure, where runoff will not occur.
(d)
Treated Sludge Analysis
The applicant shall submit the results of the analysis required in Rule 11(L) of these rules and regulations.
(B)
Land Application of Class A Biosolids
This subrule applies to the land application of Class A Biosolids obtained from a generator that possesses a valid Order
of Approval from the Department to generate and distribute Class A Biosolids. Except as provided in Rule 7(C)(3) and
except in the case of pilot projects as provided in Rule 7(E), all sites where Class A Biosolids is land applied must
operate under an Order of Approval and must meet the following requirements. The land application of Class A
Biosolids obtained from a generator that does not hold a valid Order of Approval from the Department is prohibited.
(1)
Stockpiling
The stockpiling of Class A Biosolids shall comply with Rule 13 of these rules and regulations. The quantity of
Class A Biosolids stockpiled at the land application site shall be consistent with the appropriate application rate
and size of the land application area.
(2)
Frozen Ground
No Class A Biosolids shall be applied to frozen, flooded or snow-covered ground unless appropriate erosion and
runoff control measures are provided.
(3)
Erosion Control
Soil erosion on all land application sites shall be limited to conditions which meet Resource Management System
Quality Criteria for soil erosion as defined in the USDA Natural Resources Conservation Service (NRCS) Field
Office Technical Guide for Rhode Island. Erosion control methods on all land application sites shall be
consistent with practice standards and specifications in the NRCS Field Office Technical Guide for Rhode Island.
Sediment and runoff shall be controlled on all land application sites consistent with the measures within the
Rhode Island Soil Erosion and Sediment Control Handbook, RI Department of Environmental Management,
USDA Soil Conservation Service and Rhode Island State Conservation Committee, 1989.
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Regulation 12-190-008 (December 2011)
(4)
Odor Control
Any distribution site must comply with the Department's Office of Air Resources Air Pollution Control
Regulation 17, as amended, or other rules and regulations pertaining to odors.
(5)
Transportation
All transportation of sludge shall comply with Rule 14 of these rules and regulations.
(6)
Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for the land application
of Class A Biosolids.
(a)
Management Plan
The applicant shall submit a Management Plan describing compliance with the provisions of Rule
12(B)(1–5) of these rules and regulations.
(b)
Class A Biosolids Generator
The applicant shall identify the generator of the Class A Biosolids to be land-applied.
(C)
Land Application of Class B Biosolids
(1)
Land Application of Class B Biosolids for Agricultural Use
This subrule applies to the land application of Class B Biosolids as a fertilizer and/or soil amendment to enhance
Agricultural Lands. All Class B Biosolids land application projects must operate under an Order of Approval,
must meet the same requirements for land-applied sludge in Rules 10(E–K) and 10(P–Q), and must meet the
following additional requirements:
(a)
Soil Analysis
Soil from the proposed land application site must be tested for metals listed in Appendix 6 and for the
parameters listed in Rule 10(R)(3). The Director shall determine the testing and reporting frequency. All
soil analyses shall be the responsibility of the applicant.
(b)
Land Application Rates
All Class B Biosolids intended for agricultural use must be land applied at an annual rate not to exceed the
amount necessary to supply adequate available nitrogen for crop production using good agricultural
practices or not to exceed the maximum annual rates recommended by the U.S. Department of Agriculture
to achieve fertilizer benefits and soil improvement.
(c)
Cumulative Loading Rates
The maximum amount of Class B Biosolids that can be applied to a land application site shall be
calculated using the procedure established in Appendix 7. The amount of metals in the soil shall be
deducted from each calculation.
(d)
Surface Water
No Class B Biosolids shall be land applied within fifty (50) feet of any body of surface water or within one
hundred (100) feet of any body of surface water within the watershed of a public drinking water supply.
The Director, may, if necessary, require continuous monitoring of any surface watercourses in the vicinity
of the proposed Class B Biosolids application Site. Such monitoring shall be of a type and frequency
determined by the Director on a case-by-case basis and shall be the responsibility of the owner or operator.
This requirement will be met if the applicant demonstrates to the satisfaction of the Department that any
runoff from the proposed project will not affect surface water.
(e)
Drinking Water Wells
No Class B Biosolids shall be land applied within fifty (50) feet of any private drinking water supply well
or within four hundred (400) feet of any public drinking water supply well. Land application of Class B
Biosolids shall be in accordance with the Rhode Island Groundwater Protection Act of 1985, General
Laws Chapter 46-13.1 and any rules and regulations promulgated thereunder.
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Regulation 12-190-008 (December 2011)
(f)
Distance to Property Lines
No Class B Biosolids shall be land applied within fifty (50) feet of a property line. This requirement will
be waived if consent from the adjacent landowner is received.
(g)
Stockpiling
All stockpiling of Class B Biosolids shall comply with Rule 13 of these rules and regulations.
(h)
Transportation
All transportation of Class B Biosolids shall comply with Rule 14 of these rules and regulations.
(2)
Land Application of Class B Biosolids for Non-Agricultural Use
This subrule applies to land application of Class B Biosolids as a fertilizer and/or soil amendment to enhance
non-Agricultural Lands. Such uses may include, but are not limited to public parks and grounds, sand and gravel
pit reclamation, roadsides and medians, silviculture, playgrounds, golf courses, ball fields and stadiums and
cemeteries. All Class B Biosolids land application projects must operate under an Order of Approval, must meet
the same requirements for land-applied sludge in Rules 10(I–K) and 10(P-Q), and must meet the following
requirements:
(a)
Cumulative Loading Rates
The maximum amount of Class B Biosolids that can be applied to a land application site shall be
calculated using the procedure established in Appendix 7. All Class B Biosolids intended for land
application must be applied using good agricultural or silvicultural practices.
(b)
Public Access
Public access to land where Class B Biosolids is applied shall be prohibited by the Owner or Operator until
one (1) year has passed since the last application of Class B Biosolids to land with a high potential for
public exposure, such as a park or ball field or thirty (30) days has passed since the last application of
Class B Biosolids to land with a low potential for public exposure, such as a sand and gravel pit
reclamation Site. This requirement will be waived if a land application site receives Class B Biosolids
which meets the pathogen limits established in Appendix 7.
(c)
Surface Water
No Class B Biosolids shall be land applied within fifty (50) feet of any body of surface water or within one
hundred (100) feet of any body of surface water within the watershed of a public drinking water supply.
The Director, may, if necessary, require continuous monitoring of any surface watercourses in the vicinity
of the proposed Class B Biosolids application site. Such monitoring shall be of a type and frequency
determined by the Director on a case-by-case basis and shall be the responsibility of the owner. This
requirement will be met if the applicant demonstrates to the satisfaction of the Department that the
proposed project will not affect surface water.
(d)
Drinking Water Wells
No Class B Biosolids shall be land applied within fifty (50) feet of any private drinking water supply well
or within four hundred (400) feet of any public drinking water supply well. Land application of Class B
Biosolids shall be in accordance with the Rhode Island Groundwater Protection Act of 1985, General
Laws Chapter 46-13.1 and any rules and regulations promulgated thereunder.
(e)
Distance to Property Lines
No Class B Biosolids shall be land applied within fifty (50) feet of a property line. This requirement will
be waived if written consent is received from the adjacent land owner.
(f)
Stockpiling
All stockpiling of Class B Biosolids shall comply with Rule 13 of these rules and regulations.
(j)
Transportation
All transportation of Class B Biosolids shall comply with Rule 14 of these Rules and Regulations.
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Regulation 12-190-008 (December 2011)
(3)
Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for the agricultural or
non-agricultural use of Class B Biosolids and must be stamped by a registered professional engineer or land
surveyor. These submissions are in addition to the submission requirements listed in Rule 8.
(a)
Management Plan
The applicant shall submit a Management Plan that includes the following information:
(i)
Detailed description of the Class B Biosolids land application project and the proposed sequence of
operation;
(ii) Provisions for compliance with Rules 12(B)(1) or 12(B)(2) of these rules and regulations;
(iii) Personnel and duties;
(iv) Procedures to control dust;
(v) Procedures to control erosion, sedimentation and promote vegetative growth;
(vi) Equipment to be utilized;
(vii) Substitute equipment available;
(viii)Provisions to control access;
(ix) Estimated life of Class B Biosolids land application area, and
(x) Aesthetic considerations.
(b)
Class B Biosolids and Soil Analysis
The results of the Class B Biosolids analysis required in Rule 11(L) and the soil analysis required in Rule
12(B)(1)(a) of these rules and regulations must be on file with the Office of Water Resources at the time of
application.
(D) Disposal of Class C Biosolids
Class C Biosolids may be used as cover material for solid waste landfills and land disposal sites under Rule 12(E) of
these rules and regulations. Class C Biosolids may be disposed of by burial at land disposal sites and solid waste
landfills under Rules 9 and 16 of these rules and regulations. Land application of Class C Biosolids is prohibited.
(E)
Use of Treated Sludge as Landfill Cover
This subrule applies to the use of treated sludge as cover material at solid waste landfills and land disposal sites. Use at
solid waste landfills must be in accordance with the Department’s solid waste regulations. All solid waste landfills and
land disposal sites using treated sludge as cover material must operate under an Order of Approval and must meet the
following requirements.
(1)
Solid Waste Landfills
Solid waste landfill uses include the following:
(a)
Daily Cover
Treated sludge may be used as initial or daily landfill cover only as an amendment in amounts to be
approved on a case-by-case basis.
(b)
Intermediate Cover
Treated sludge may be used as an amendment in the creation of a six-inch (6") intermediate cover over the
initial cover layer.
(c)
Final Cover
Treated sludge may be used as final landfill cover as an application of soil of sufficient type and thickness
to support vegetative growth.
(2)
Land Disposal Sites
Treated sludge may be used as final cover for land disposal sites as an application of soil of sufficient type and
thickness to support vegetative growth.
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Regulation 12-190-008 (December 2011)
(3)
Application Rates
Treated sludge used as cover shall be applied at a rate determined on a case-by-case basis. Use at solid waste
landfills shall be in accordance with procedures established in the department’s solid waste regulations.
(4)
Surface Water
Treated sludge used as cover shall not be applied within fifty (50) feet of any body of surface water. This
requirement will be met if the applicant demonstrates to the satisfaction of the Department that any runoff from
the project will not affect surface water.
(5)
Odor Control
Any solid waste landfill or land disposal site using treated sludge as cover must comply with the Department's
Office of Air Resources' Air Pollution Control Regulation 17, as amended, or other rules and regulations
pertaining to odors.
(6)
Transportation
All transportation of treated sludge shall comply with Rule 14 of these rules and regulations.
(7)
Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for the use of treated
sludge as cover material at solid waste landfills and land disposal sites and must be stamped by a registered
professional engineer or land surveyor. These submissions are in addition to the submission requirements listed
in Rule 8. All submissions for approval and amendments to solid waste landfill operating and/or closure plans for
using treated sludge for landfill cover must also be approved by the Office of Waste Management, in accordance
with the solid waste regulations.
(a)
Management Plan
The applicant shall submit a Management Plan describing compliance with the provisions of Rule
12(E)(1–6) of these rules and regulations.
(b)
Treated Sludge Analysis
The applicant shall submit the results of the analysis required in Rule 11(N) of these rules and regulations.
RULE 13. STOCKPILING
This rule applies to the stockpiling of untreated and treated sludge at a sludge management facility or site. Except as
provided in Rule 7(C)(4), all stockpile facilities and sites must operate under an Order of Approval. Requirements for
stockpiling sludge are as follows:
(A) Untreated Sludge
Other than in approved storage facilities at publicly or privately owned treatment works, the stockpiling of untreated
sludge is prohibited. Arrangements must be made to either:
(1)
Treat all sludge immediately upon arrival at a sludge treatment facility;
(2)
Bury all sludge immediately upon arrival at a land disposal or co-disposal facility or site; and
(3)
Land apply all sludge immediately upon arrival at a land application site.
(B)
Treated Sludge
The stockpiling of treated sludge shall meet the following requirements:
(1)
Groundwater
A minimum of two (2) feet of soil is required between the lowest level of stockpiled sludge and the seasonal high
groundwater table as determined by a DEM-licensed Class IV soil evaluator in accordance with the procedures
described in the Department Rules Establishing Minimum Standards Relating to Location, Design, Construction
and Maintenance of Onsite Wastewater Treatment Systems. The determination of the seasonal high groundwater
table must be witnessed by the Department. In addition, a minimum of three (3) feet of soil is required between
the highest level of bedrock and the lowest level of stockpiled sludge. If the applicant seeks a variance from these
separation distances under Rule 22 of these rules and regulations, the applicant must demonstrate to the
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Regulation 12-190-008 (December 2011)
satisfaction of the Office of Water Resources that the sludge treatment facility or site will not generate leachate.
Otherwise, the Director will require the installation of an impermeable liner system or leachate collection and
treatment system or other means to prevent leachate from reaching the groundwater as a condition for the
granting of such variance.
(2)
Surface Water
No treated sludge shall be stockpiled within two hundred (200) feet of any body of surface water. No treated
sludge shall be stockpiled within the watershed of any surface water used as a public drinking water supply. The
Director may, if necessary, require continuous monitoring of any surface watercourses in the vicinity of the
stockpile site. Such monitoring shall be of a type and frequency determined by the Director on a case-by-case
basis and shall be the responsibility of the owner or operator of the facility or site. If the applicant seeks a
variance from these separation distances under Rule 22 of these rules and regulations, the applicant must
demonstrate to the satisfaction of the Department that any runoff from the sludge treatment facility or site will
not impact surface water as a condition for the granting of such variance.
(3)
Drinking Water Wells
No treated sludge shall be stockpiled within one thousand (1,000) feet of any private drinking water supply well
or within the Wellhead Protection Area for a public drinking water supply well. Any stockpile site shall comply
with the Rhode Island groundwater Protection Act of 1985, General Laws Chapter 46-13.1 and any rules and
regulations promulgated thereunder. If the applicant seeks a variance from these separation distances under Rule
22 of these rules and regulations, the applicant must demonstrate to the satisfaction of the Department that the
stockpile site will not generate leachate. Otherwise, the Director will require the installation of an impermeable
liner system or other means to prevent leachate from reaching the groundwater as a condition for the granting of
such variance.
(4)
Distance to Property Lines
No treated sludge shall be stockpiled within one hundred (100) feet of a property line. If the applicant seeks a
variance from this separation distance under Rule 22 of these rules and regulations, the Director will require that
the treated sludge be stockpiled in a facility that is enclosed as a condition for the granting of such variance.
(5)
Monitoring Wells
For the purpose of monitoring groundwater conditions, the owner or operator of a stockpile facility or site shall
install and maintain monitoring wells of a number and type approved by the Director and at locations chosen by
the Director. The owner or operator of the site is responsible for analysis of groundwater in accordance with
instructions of the Director. The Director shall determine the testing and reporting frequency. If the applicant
seeks a variance from this requirement, the Director will require that the treated sludge be stockpiled in a facility
that is completely enclosed as a condition for the granting of such variance.
(6)
Odor Control
Any stockpile facility or site must comply with the Department’s Office of Air Resources Air Pollution Control
Regulation 17, as amended, or other rules and regulations pertaining to odors.
(C)
Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for the stockpiling of treated
sludge and must be stamped by a registered professional engineer or land surveyor. These submissions are in addition to
the submission requirements listed in Rule 8.
(1)
Management Plan
The applicant shall submit a Management Plan describing compliance with the provisions of Rule 13(B)(1–6) of
these rules and regulations.
(2)
Treated Sludge Analysis
The applicant shall submit the results of the analysis required in Rule 11(N) of these rules and regulations.
RULE 14. TRANSPORTATION
This Rule applies to the transportation of sludge on public roads. Except as provided in Rule 7(C)(1), all transporters
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Regulation 12-190-008 (December 2011)
operating within or entering the State of Rhode Island for the purpose of treatment, disposal, stockpiling, and/or land
application of sludge within the State of Rhode Island shall operate under an Order of Approval and shall meet the
requirements in this Rule. All other transporters entering the State of Rhode Island shall not be required to operate under
an Order of Approval. However, such transporters shall meet the requirements in Rule 14(A) below.
(A)
Vehicles and Containers
All vehicles and containers that are used for transportation of sludge shall comply with the following:
(1)
Each container and vehicle shall be maintained so as not to create objectionable odors or public health or
environmental hazards;
(2)
All open containers shall be covered during transport to minimize odors and to prevent loss of sludge;
(3)
Each container transporting sludge from which liquid might be released during transport shall be watertight;
(4)
Vehicles and containers containing sludge shall not be placed for longer than 24 hours at a facility or site;
(5)
All containers shall be inspected by the driver prior to transport on public roads to ensure that sludge will not
leak or spill out during transportation; and
(6)
All vehicles and containers shall conform to all applicable state and federal requirements.
(B)
Recordkeeping
With the exception of Class A Biosolids, a transporter shall keep a written record of the following information for
each load of sludge:
(1)
Date the sludge is removed from the generator’s facility or site;
(2)
Generator’s name, address and telephone number;
(3)
Characteristics of sludge (i.e. liquid or solid);
(4)
Quantity of sludge, in wet tons, dry tons and gallons (if in liquid form);
(5)
Name, address and telephone number of the facility(ies) or site(s) to which the sludge is to be delivered; and
(6)
The date delivered to the facility or site.
(C)
Reporting
With the exception of Class A Biosolids, the transporter shall submit monthly the information required in Rule
14(B) above to the Office of Water Resources by no later than the 15th day of the following month.
(D)
Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for transportation of sludge.
(1)
Application Form
The applicant shall provide information on the proposed sludge management activity on an application form
obtained from the department.
(2)
Management Plan
A Management Plan shall be submitted describing provisions for compliance with Rule 14(A - C) of these rules
and regulations.
RULE 15. INCINERATION
Incineration of sludge shall be permitted if the incinerator system employed complies with rules and regulations promulgated
by the Department and the USEPA regarding incinerators, air pollution, and all other applicable provisions of the law and such
rules and regulations. All sludge incinerators shall operate under an Order of Approval.
(A) Incineration Methods
Sludge incineration may be practiced by, but not limited to, the methods described below. Any proposed sludge
incineration method must consider the treatment of exhaust gases to exclude harmful organics and particulates as stated
in EPA and Rhode Island Air Pollution Control Regulations. Any comparable method of sludge incineration shall be
considered by the Director for approval.
(1)
Multiple Hearth Incineration which includes, but is not limited to, "excess air" and pyrolysis.
(2)
Fluidized Bed Reactor which includes, but is not limited to, typical graded silica sand beds for the incineration of
sludge.
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Regulation 12-190-008 (December 2011)
(B)
Sludge Analysis
All sludge intended for incineration may be required to be tested using the Toxicity Characteristic Leaching Procedure
for the parameters listed in Appendix 4 and the results submitted to the Office of Water Resources. The Director shall
determine the testing and reporting frequency. All sludge analyses shall be the responsibility of the owner of the facility
that generates the sludge.
(C)
Condition of Sludge
All sludge intended for incineration shall not meet the criteria for hazardous waste.
(D) Odor Control
Any sludge incinerator must comply with the Department's Office of Air Resources' Air Pollution Control Regulation
17, as amended, or other rules and regulations pertaining to odors.
(E)
Transportation
All transportation of sludge shall comply with Rule 14 of these rules and regulations.
(F)
Regional Incineration
This subrule applies to any incinerators that incinerate or propose to incinerate sludge from more than one publicly
owned treatment works or privately owned treatment works. All such incinerators shall operate under an Order of
Approval and shall meet the requirements in this subrule.
(1)
Sludge Approval
The owner or operator of an incinerator shall obtain prior approval from the department for the sludge from each
publicly owned treatment works or privately owned treatment works that is proposed to be incinerated. The
owner or operator of an incinerator proposing to incinerate sludge from multiple publicly owned treatment works
or privately owned treatment works shall submit the following information to the department:
(a)
Name and address of publicly owned treatment works or privately owned treatment works where the
sludge is generated;
(b)
Description of the publicly owned treatment works or privately owned treatment works including but not
limited to the type of wastewater treatment employed and design flow;
(c)
Estimate of how much sludge in dry tons/year is generated by the publicly owned treatment works or
privately owned treatment works;
(d)
Estimate of how much sludge in dry tons/year from publicly owned treatment works or privately owned
treatment works will be incinerated at the regional incinerator;
(e)
Description of the sludge characteristics including but not limited to whether the sludge is liquid or solid
and the average moisture content of the sludge;
(f)
Name and address of the transporter;
(g)
Copy of results for sludge testing using the Toxicity Characteristics Leaching Procedure for the parameters
listed in Appendix 4 of these rules and regulations (testing shall have been performed no more than one (1)
year prior to submittal);
(h)
Proposed dates for the regional incinerator to incinerate sludge from the publicly owned treatment works
or privately owned treatment works; and
(i)
Explanation of available of storage, dewatering and incineration capacity at the regional incinerator.
(2)
Sludge Analysis
A sludge sample shall be collected daily from the incinerator sludge storage tank and composited into one sample
each month which shall be analyzed for total metals.
(3)
Emergency Contingency Plan
All regional incinerators shall have an emergency contingency plan in place which outlines procedures for
continued, uninterrupted disposal of sludge in the event that the regional incinerator is not able to accept and/or
incinerate sludge for any reason including mechanical failure. The emergency contingency plan shall include a
listing of alternate disposal sites for sludge.
(4)
Reporting
The owner or operator of a regional incinerator shall submit monthly reports to the department no later than
Page 28
Regulation 12-190-008 (December 2011)
the 15th day of the following month that includes the following information:
(a)
Names of all publicly owned treatment works and privately owned treatment works from which
incinerated sludge was generated from;
(b)
Quantity of sludge incinerated including number of loads received, total gallons received, average
moisture content of sludge, and total dry tons of sludge received from each publicly owned treatment
works or privately owned treatment facility; and
(c)
Copy of sludge analysis required in Rule 15(F)(2).
(G) Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for incineration of sludge and
must be stamped by a registered professional engineer or land surveyor.
(1)
Application Form
The applicant shall provide information on the proposed sludge management activity on an application form
obtained from the department.
(2)
Management Plan
Any owner or applicant who wishes to engage in sludge incineration must submit a Management Plan describing
compliance with the requirements of these rules and regulations to the Director to be reviewed and evaluated
individually before approval is issued. An owner or applicant seeking to operate as a regional incinerator shall
also describe compliance with requirements in Rule 15(F) of these rules and regulations.
RULE 16. CO-DISPOSAL OF SLUDGE AND SOLID WASTE
This rule applies to the disposal of sludge by burial at a solid waste landfill approved for the disposal of solid waste by the
Department. Any such solid waste landfill must operate under an Order of Approval.
(A) Sludge Analysis
All sludge intended for disposal at a solid waste landfill may be required to be tested using the Toxicity Characteristic
Leaching Procedure for the parameters listed in Appendix 4 and the results submitted to the Office of Water Resources.
The owner or operator of the facility that generated the sludge shall be responsible for all analyses. The Director shall
determine the testing and reporting frequency.
(B)
Condition of Sludge
All sludge intended for disposal at a solid waste landfill shall be treated by one of the Processes to Significantly Reduce
Pathogens described in Appendix 3. Such treatment shall be the responsibility of the owner or operator of the facility
that generated the sludge. All sludge intended for disposal at a solid waste landfill shall not meet the criteria for
hazardous waste.
(C)
Cover Material
A soil cover of at least six (6) inches shall be applied to all sludge, Composted sludge or treated sludge deposits daily to
control disease vectors and nuisance conditions.
(D) Transportation
All transportation of sludge shall comply with Rule 14 of these rules and regulations.
(E)
Odor Control
Any such solid waste landfill site must comply with the Rhode Island Department of Environmental Management,
Office of Air Resources Air Pollution Control Regulation 17, as amended, and other rules and regulations pertaining to
odors.
(F)
Submissions for Approval
The following submissions are required as part of an Application for Order of Approval for incineration of sludge and
must be stamped by a registered professional engineer or land surveyor
Page 29
Regulation 12-190-008 (December 2011)
(1)
Application Form
The applicant shall provide information on the proposed sludge management activity on an application form
obtained from the department.
(2)
Management Plan
Any owner or applicant who wishes to engage in the disposal of sludge by burial at a solid waste landfill must
submit a plan describing compliance with the requirements in this rule to the Director to be reviewed and
evaluated individually before approval is issued.
RULE 17. OCEAN DISPOSAL
The discharge or disposal of sludge, Composted sludge or treated sludge into the waters of the State is prohibited in
accordance with Rhode Island General Laws, Title 46, Chapter 12, as amended.
RULE 18. NOTIFICATION OF CLOSURE AND CLOSURE PROCEDURE
(A) Land Disposal Facilities or Sites
The owner of a land disposal site shall notify the Office of Water Resources in writing within ninety (90) days prior to
the date the owner intends to close said site. The notification shall provide that the owner will physically remove all
materials on site or the owner will abide by the closure plan, including the post-closure monitoring and financial
provisions, as submitted by the applicant and approved by the Office of Water Resources under Rule 9(M)(4) of these
rules and regulations.
(B)
Other Facilities or Sites
The owner of any facility or site other than a land disposal site shall notify the Office of Water Resources in writing at
least thirty (30) days prior to the date the owner intends to close said facility or site. Before a facility or site will be
considered closed, the Office of Water Resources shall conduct a final investigation to determine compliance with the
provisions of these rules and regulations and the approved Management Plan.
RULE 19. LIMITED ACCESS
Operations of a facility or site shall be limited to those hours specified in the approved Management Plan.
RULE 20. SLUDGE RELEASE
In the event of a release or spill of sludge, the owner or operator of the facility or site where the sludge release occurred or the
transporter (if the release occurred during transport) shall be required to do the following:
(A) Immediately take action to contain the release, minimize the environmental impact, and begin clean up procedures.
(B) Verbally notify the Department within 24 hours of the release with the following information:
(1)
The date, time and location of the release;
(2)
The quantity of sludge released and the quantity of sludge recovered, in gallons and wet tons;
(3)
The quantity and final disposition of any sludge not recovered;
(4)
The name, address and telephone number of the driver involved (if sludge release occurs during transport);
(5)
The name, address and telephone number of the facility or site that generated the sludge;
(6)
The approximate distance to any surface waters and storm drains;
(7)
The actions taken to control the extent of the release and minimize the environmental impact; and
(8)
Future actions necessary to clean up the release, if applicable.
(C)
Submit a certified letter to the Department within five (5) days of the release that includes but is not limited to the
information required in Rule 20(B) signed by the owner of the facility or site where the release occurred. In the event
that the release occurred during transport, the transporter shall submit the certified letter.
(D)
Notification of the release to the Department shall not be required if all of the following conditions are met:
(1)
The release is less than 25 gallons or 5 cubic feet if the sludge contains greater than 10 percent solids;
(2)
The release is immediately contained;
(3)
The release is completely removed within 24 hours; and
(4)
The release does not discharge to a surface water or storm drain system.
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Regulation 12-190-008 (December 2011)
RULE 21. EXISTING FACILITIES OR SITES
All facilities or sites that are operating on the effective date of these rules and regulations (the "existing facilities") may
continue to operate in compliance with their current Orders of Approval, which shall remain in full force and effect unless
suspended or revoked by the Director in accordance with Rule 23 of these rules and regulations.
RULE 22. VARIANCES
(A) Any owner or applicant may submit a written request to the Director for a variance from some or all provisions of these
rules and regulations.
(B)
The owner or applicant shall have the burden of proving by clear and convincing evidence that a variance should be
granted because alternative design or operating standards or alternative methods proposed in the variance application
fulfill the purposes of the rules and regulations from which the variance is requested and shall have no adverse effect on
public health and the environment.
(C)
The Director may require that the applicant provide notification of any request for variance to all potentially affected
parties as determined by the Director. At a minimum, the applicant may be required to notify all abutters of the proposed
facility or site. The Director may schedule a public hearing as required pursuant to Rhode Island General Laws Chapter
42-35 to solicit public comment prior to rendering a decision on the variance request. The applicant shall be required to
pay the expenses for notice and hearing.
(D) The Director's decision to grant or deny a variance shall be in writing and may, as a condition of granting the variance,
impose appropriate requirements necessary to protect the public health and environment.
(E)
Issuance of a variance pursuant to this rule does not relieve the holder of the variance from complying with requirements
of these rules and regulations which have not been the subject of a variance.
RULE 23. DENIAL, SUSPENSION, REVOCATION OF APPROVAL
(A) The Director may suspend or revoke, in whole or in part, an approval for cause, including, but not limited to:
(1)
Failure to comply with these rules and regulations;
(2)
Refusal to permit a reasonable inspection;
(3)
Information indicating that the facility or site may result in probable harm to the environment or pose a threat to
the health, safety and/or welfare of the public;
(4)
The information on the Application for Order of Approval or in any other material in support of the application is
found to be false, misleading, or erroneous; or
(5)
Failure to comply with any conditions or provisions of the Order of Approval.
(B)
Whenever the Director determines that a facility or site is not being operated in conformance with these rules and
regulations or the Order of Approval, the Director may order the owner to take appropriate corrective action necessary to
secure compliance with these rules and regulations and to order closure of said facility or site.
(C)
The Director may deny an application for failure to satisfy the requirements of these rules and regulations.
(D) A notice of suspension or revocation of an approval or the denial of an application shall be in the form of a letter
notifying the owner or operator of the facility or site or subsequent transferee of the suspension, revocation, or denial
and the reasons for the suspension, revocation, or denial.
(E)
Any person served with a notice of suspension or revocation of an approval or the denial of an application may request
an adjudicatory hearing to contest the suspension, revocation or denial as set forth in Rule 23 of these rules and
regulations. A notice of suspension, revocation or denial automatically becomes a final order of the Director enforceable
in Superior Court upon failure to file a timely request for said adjudicatory hearing (as described in Rule 23).
RULE 24. PENALTIES
Penalties may be assessed in accordance with Rhode Island General Laws Chapters 46-12, 23-18.9, 23-19.1, 42-17.1, 42-17.6,
and the Department's "Regulations for the Assessment of Administrative Penalties" for any violation of these rules and
regulations.
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Regulation 12-190-008 (December 2011)
RULE 25. APPEALS
(A) General
The procedures for appeal of Departmental decisions pursuant to the provisions of Chapter 42-35 of the R.I. General
Laws are contained in both "Administrative Rules of Practice and Procedure for the Department of Environmental
Management Administrative Adjudication Division for Environmental Matters" and the "Administrative Rules of
Practice & Procedure for the Department of Environmental Management. "
(B)
Appeal Procedure for Approval Denials
Any person whose approval application is denied may appeal to the Director for review of the decision on which the
denial is based by filing an appeal with DEM/Administrative Adjudication.
(1)
Filing of Appeal
All appeals shall be in writing and shall be filed with and received by DEM/Administrative Adjudication within
thirty (30) days after the effective date of the denial of the subject application. See R.I. General Laws § 42-17.7-
9.
(2)
Contents of Appeal
Every appeal shall contain a detailed basis upon which the appeal is taken.
(3)
Notice of Administrative Hearing
Upon the filing of an appeal with DEM/Administrative Adjudication, and once the hearing schedule allows,
DEM/Administrative Adjudication shall notify by first class mail those persons as determined by the Director of
the date, time and place of the adjudicatory hearing, in conformance with R.I. General Laws Section 42-35-9, as
amended.
(C)
Appeal Procedure for Notice of Violations
Any person who has received a Notice of Violation (NOV) alleging violation of these rules and regulations, or whose
approval has been suspended or revoked may appeal to the Director for review of the decision on which the NOV,
suspension or revocation is based by filing an appeal with DEM/Administrative Adjudication.
(1)
Filing of Appeal
All appeals shall be in writing and shall be filed with and received by DEM/Administrative Adjudication within
twenty (20) days after the date of receipt of the subject NOV, suspension or revocation. See R.I. General Laws §
42-17.7-9.
(2)
Contents of Appeal
Every appeal shall contain a detailed basis upon which the appeal is taken. See R.I. General Laws § 42-17.7-9.
RULE 26. SEVERABILITY
If any provision of these rules and regulations, or the application thereof to any person or circumstances, is held invalid by a
court of competent jurisdiction, the validity of the remainder of the rules and regulations shall not be affected thereby.
RULE 27. SUPERSEDED RULES AND REGULATIONS
On the effective date of these rules and regulations, all previous rules and regulations, and any policies regarding the
administration and enforcement of sewage sludge management shall be superseded. However, any enforcement action taken
by, or application submitted to, the Department prior to the effective date of these rules and regulations shall be governed by
the rules and regulations in effect at the time the enforcement action was taken, or application filed.
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Regulation 12-190-008 (December 2011)
RULE 28. EFFECTIVE DATE
The foregoing "Rules and Regulations for Sewage Sludge Management", after due notice, are hereby adopted and filed with
the Secretary of State this day of December, 2011, to become effective twenty (20) days thereafter, in
accordance with the provisions of Chapters 46-12, 42-17.1, 42-35, 23-18.9 and 23-19.1 of the General Laws of Rhode Island
of 1956, as amended.
________________________________________
Janet Coit, Director
Department of Environmental Management
Notice Given On:
October 24, 2011
Public Hearing Held:
November 30, 2011
Filing Date:___________________
Effective Date:______________________
Page 33
Regulation 12-190-008 (December 2011)
APPENDIX 1
PROCESSES TO SIGNIFICANTLY REDUCE PATHOGENS
(A) Aerobic Digestion
The process is conducted by agitating sludge with air or oxygen to maintain aerobic conditions at residence times
ranging from 60 days at 15°C to 40 days at 20°C.
(B)
Air Drying
Sludge is dried on sand beds or on paved or unpaved basins. A minimum of three months is needed, two months of
which temperatures average on a daily basis above 0°C.
(C)
Anaerobic Digestion
The process is conducted in the absence of air at residence times ranging from 60 days at 20°C to 15 days at 35°C to
55°C.
(D) Composting
Either the within-vessel, static aerated pile or windrow composting method is used to maintain the temperature of the
sludge at 40°C or higher for 5 days. For 4 hours during the 5-day period, the temperature in the compost pile exceeds
55°C.
(E)
Lime Stabilization
Sufficient lime is added to the sludge to produce a pH of 12 after 2 hours of contact. pH measurements shall be
performed at 25°C or corrected to 25°C.
(F)
Other Methods
Other methods or operating conditions, if accepted by the U.S. Environmental Protection Agency, may beused if
pathogens are reduced to an extent equivalent to the reduction achieved by any of the above methods.
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Regulation 12-190-008 (December 2011)
APPENDIX 2
PROCESSES TO FURTHER REDUCE PATHOGENS
(A) Composting
Using either the within-vessel composting method or the static aerated pile composting method, the temperature of the
sewage sludge is maintained at 55°C or greater for three days. Using the windrow composting method, the temperature
of the sewage sludge is maintained at 55°C or greater for at least 15 days. During the period when the compost is
maintained at 55°C or greater, there shall be a minimum of five turnings of the windrow.
(B)
Heat Drying
Sewage sludge is dried by direct or indirect contact with hot gases to reduce the moisture content of the sewage sludge to
10 percent or lower. Either the temperature of the sewage sludge particles exceed 80°C or the wet bulb temperature of
the gas in contact with the sludge at the point where it leaves the dryer exceeds 80°C.
(C)
Heat Treatment
Liquid sludge is heated to a temperature of 180°C or higher for 30 minutes.
(D) Thermophilic Aerobic Digestion
Liquid sludge is agitated with air or oxygen to maintain aerobic conditions at residence times of 10 days at 55°C to
60°C.
(E)
Beta Ray Irradiation
Sludge is irradiated with beta rays from an accelerator at dosages of at least 1.0 megarad at room temperature (ca. 20°C).
(F)
Gamma Ray Irradiation
Sludge is irradiated with gamma rays from certain isotopes, such as Cobalt 60 and Cesium 137 at room temperature (ca.
20°C).
(G) Pasteurization
Sludge is maintained at a minimum temperature of 70oC for at least 30 minutes.
(H) Other Methods
Other methods or operating conditions if acceptable by the U.S. Environmental Protection Agency may be used if
pathogens are reduced to an extent equivalent to the reduction achieved by any of the above methods.
Page 35
Regulation 12-190-008 (December 2011)
APPENDIX 3
VECTOR ATTRACTION REDUCTION REQUIREMENTS
(A) Reduction in Volatile Solids Content
The mass of volatile solids in the sewage sludge shall be reduced by a minimum of 38 percent (see calculation
procedures in "Environmental Regulations and Technology, Control of Pathogens and Vector Attraction in Sewage
Sludge", EPA/625/R-92/013, July 2003, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268).
(B)
Additional Digestion of Anaerobically Digested Biosolids
When the 38 percent volatile solids reduction requirement in option A cannot be met for an anaerobically digested
sewage sludge, vector attraction reduction can be demonstrated by digesting a portion of the previously digested sewage
sludge anaerobically in the laboratory in a bench-scale unit for 40 additional days at a temperature between 30°C and
37°C. When at the end of the 40 days, the volatile solids in the sewage sludge at the beginning of that period is reduced
by less than 17 percent, vector attraction reduction is achieved.
(C)
Additional Digestion of Aerobically Digested Biosolids
When the 38 percent volatile solids reduction requirement in option A cannot be met for an aerobically digested sewage
sludge, vector attraction reduction can be demonstrated by digesting a portion of the previously digested sewage sludge
that has a percent solids of 2 percent or less aerobically in the laboratory in a bench-scale unit for 30 additional days at
20°C. When at the end of the 30 days, the volatile solids in the sewage sludge at the beginning of that period is reduced
by less than 15 percent, vector attraction reduction is achieved.
(D) Specific Oxygen Uptake Rate (SOUR) for Aerobically Digested Biosolids
The specific oxygen uptake rate (SOUR) for sewage sludge treated in an aerobic process shall be equal to or less than
1.5 milligrams of oxygen per hour per gram of total solids (dry weight basis) at a temperature of 20°C.
(E)
Aerobic Processes at Greater Than 40°C
Sewage sludge shall be treated in an aerobic process for 14 days or longer. During that time, the temperature of the
sewage sludge shall be higher than 40°C and the average temperature of the sewage sludge shall be higher than 45°C.
(F)
Addition of Alkaline Material
The pH of sewage sludge shall be raised to 12 or higher by alkali addition and, without the addition of more alkali, shall
remain at 12 or higher for two hours and then at 11.5 or higher for an additional 22 hours. pH measurements shall be
performed at 25°C or corrected to 25°C.
(G) Moisture Reduction of Biosolids Containing No Unstabilized Solids
Sewage sludge shall not contain unstabilized solids generated during primary treatment and the solids content of the
sewage sludge shall be at least 75 percent before the sewage sludge is mixed with other materials. The solids content of
the sewage sludge shall be achieved by removing water, not by adding inert materials.
(H) Moisture Reduction of Biosolids Containing Unstabilized Solids
Solids content of the sewage sludge shall be at least 90 percent, regardless of whether the sewage sludge is from primary
treatment. The solids content of the sewage sludge shall be achieved by removing water, not by adding inert materials.
The sewage sludge shall not be exposed to high humidity prior to use or disposal to prevent the outer surface of the
sewage sludge from gaining moisture content.
(I)
Biosolids Injection
(1)
Sewage sludge shall be injected below the surface of the land, and
(2)
No significant amount of the sewage sludge shall be present on the land surface within 1 hour after the sewage
sludge is injected, and
(3)
When the sewage sludge that is injected below the surface of the land meets the pathogen limits in Appendix 5,
the sewage sludge shall be injected below the land surface within 8 hours after being discharged from the
pathogen reduction process.
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Regulation 12-190-008 (December 2011)
(J)
Incorporation of Biosolids into the Soil
(1)
Sewage sludge applied to the land surface or placed on a surface disposal site shall be incorporated into the soil
within 6 hours after application to or placement on the land, and
(2)
When sewage sludge that is incorporated into the soil meets the pathogen limits in Appendix 5, the sewage
sludge shall be applied to or placed on the land within 8 hours after being discharged from the pathogen
reduction process.
(K) Covering Sludge (Land Disposal Only)
Sewage sludge placed on a surface disposal site shall be covered with soil or other material at the end of each operating
day.
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Regulation 12-190-008 (December 2011)
APPENDIX 4
MAXIMUM CONCENTRATION OF CONTAMINANTS
FOR THE TOXICITY CHARACTERISTIC LEACHATE PROCEDURE
EPA Hazardous Waste Number
Contaminant
Regulatory Limit (mg/L)
D004
Arsenic
5.0
D005
Barium
100.0
D018
Benzene
0.5
D006
Cadmium
1.0
D019
Carbon tetrachloride
0.5
D020
Chlordane
0.03
D021
Chlorobenzene
100.0
D022
Chloroform
6.0
D007
Chromium
5.0
D023
o-Cresol
200.0
D024
m-Cresol
200.0
D025
p-Cresol
200.0
D026
Cresol
200.0
D016
2,4-D
10.0
D027
1,4-Dichlorobenzene
7.5
D028
1,2-Dichloroethane
0.5
D029
1,1-Dichloroethylene
0.7
D030
2,4-Dinitrotoluene
0.13
D012
Endrin
0.02
D031
Heptachlor (and its hydroxide)
0.008
D032
Hexachlorobenzene
0.13
D033
Hexachlorobutadiene
0.5
D034
Hexachloroethane
3.0
D008
Lead
5.0
D013
Lindane
0.4
D009
Mercury
0.2
D014
Methoxychlor
10.0
D035
Methyl ethyl ketone
200.0
D036
Nitrobenzene
2.0
D037
Pentachlorophenol
100.0
D038
Pyridine
5.0
D010
Selenium
1.0
D011
Silver
5.0
D039
Tetrachloroethylene
0.7
D015
Toxaphene
0.5
D040
Trichloroethylene
0.5
D041
2,4,5-Trichlorophenol
400.0
D042
2,4,6-Trichlorophenol
2.0
D017
2,4,5-TP (Silvex)
1.0
D043
Vinyl chloride
0.2
Page 38
Regulation 12-190-008 (December 2011)
APPENDIX 5
CLASS A BIOSOLIDS LIMITS
(A) Metals
METAL
LIMIT, mg/kg (dry weight)
Arsenic
41
Cadmium
39
Copper
1500
Lead
300
Mercury
17
Nickel
420
Selenium
100
Zinc
2800
(B)
Pathogens
The following pathogen limit must be met:
PATHOGEN
LIMIT
Fecal Coliform Bacteria
Less than 1000 Most Probable Number
per 1 gram of total solids (dry weight)
Pathogen reduction must take place before or at the same time as vector attraction reduction except when options F
through J in Appendix 3 are used.
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Regulation 12-190-008 (December 2011)
APPENDIX 6
CLASS B BIOSOLIDS LIMITS AND CHARACTERISTICS
(A) Metals
METAL
LIMIT, mg/kg (dry weight)
Arsenic
75
Cadmium
85
Copper
4300
Lead
840
Mercury
57
Molybdenum
75
Nickel
420
Selenium
100
Zinc
7500
(B)
Characteristics
CHARACTERISTICS
Ratio of Sludge to Bulking Agent (if applicable)
Density of Composted Sludge (if applicable)
Moisture Content (%)
Total Volatile Solids (%)
Ammonia Nitrogen (%)
Nitrate Nitrogen (%)
Total Nitrogen (%)
Available Phosphoric Acid (%)
Soluble Potash (%)
Specific Conductivity
PH
Page 40
Regulation 12-190-008 (December 2011)
APPENDIX 7
MAXIMUM CUMULATIVE LOADING RATES
METAL
DRY TONS PER ACRE
Arsenic
41 kg As/hectare
( ppm As) x 0.002
Cadmium
39 kg Cd/hectare
( ppm Cd) x 0.002
Copper
1500 kg Cu/hectare
( ppm Cu) x 0.002
Lead
300 kg Pb/hectare
( ppm Pb) x 0.002
Mercury
17 kg Hg/hectare
( ppm Hg) x 0.002
Nickel
420 kg Ni/hectare
( ppm Ni) x 0.002
Selenium
100 kg Se/hectare
( ppm Se) x 0.002
Zinc
2800 kg Zn/hectare
( ppm Zn) x 0.002
The parts per million of each metal are provided in the sludge analyses.
The lowest value is chosen from the above nine (9) calculations as the maximum cumulative tons of sludge which can be
applied per acre.