Industrial flow measuring and sampling

(a) If required by the DEQ, place a flow-measuring device to measure only the wastewater discharge. (b) Provide easily accessible sampling points at the outfall of each treatment structure. (c) Upon request by the DEQ, provide five (5) days prior notice to the DEQ of the next sampling schedule so that DEQ personnel may be present to observe and collect split samples. (d) Minimum process control tests are tabulated in Appendix A of this Chapter, entitled, "Minimum Control Tests for Wastewater Treatment Facilities." The Executive Director may require that all effluent samples be collected from the outfall pipe at the point of discharge where conditions are such that the effluent quality will likely be different at this point than it is in the final treatment or storage unit. (e) When required in a facility's discharge permit, stream monitoring samples must be collected instream above and below the point of wastewater discharge with consideration to the following factors: ease of access; mixing of plant effluent and the receiving stream; and the oxygen "sag" point of the receiving stream. (1) Determine dissolved oxygen, temperature, pH, and stream appearance as noted in the permit twice per month at least two weeks apart, but not more often than required in the permit for effluent sampling for BOD5. (2) Test for coliform bacteria twice per month at least two (2) weeks apart, but not more often than required in the permit for effluent sampling for coliform, if the permit for discharge contains coliform limits. (3) The DEQ may require additional tests when problems develop in plant operation, or as necessary to determine compliance with the purposes and objectives of this Chapter. (f) The Executive Director may grant variances from the requirements in this Section upon a written request and a showing by the permittee that the requested variance will: (1) Not adversely affect the quality of the discharge nor the environment; (2) Avoid an excessive requirement; and (3) Not hinder the proper operations of the treatment facility. Health/Fish Flesh and Water Criteria 46 APPENDIX A. MINIMUM CONTROL TEST FOR WASTEWATER TREATMENT FACILITIES [REVOKED] APPENDIX A. MINIMUM CONTROL TEST FOR WASTEWATER TREATMENT FACILITIES [NEW] A facility must perform the minimum control tests for all processes which it utilizes. For example, a trickling filter facility which has an anaerobic digester must comply with Tables 1-2, 1-5 and 1-6. OAC 252:606-11-3 and OAC 252:606-11-5 contains stream monitoring requirements. All facilities which discharge must perform these tests. The following abbreviations, definitions and notations are used: DO -Dissolved Oxygen BOD5 -Five -day biochemical oxygen demand TSS -Total Suspended Solids SAR -Sodium absorption ratio 2/wk -Two times each week 3/wk -Three times each week 5/wk -Five times each week 7/wk -Seven times each week Daily -Each day 3 hr comp - A composite sample collected over a three hour period of time and consisting of three effluent portions collected no closer together than one hour (with the first portion collected no earlier than 10:00 a.m.) and composited according to flow. 6 hr comp - A composite sample collected over a six hour period of time and consisting of six effluent portions collected no closer together than one hour (with the first portion collected no earlier than 10:00 a.m.) and composited according to flow. 12 hr comp - A composite sample collected over a twelve hour period of time and consisting of twelve effluent portions collected no closer together than one hour and composited according to flow. Grab sample -An individual sample collected in less than 15 minutes. Sequential Batch Reactor (SBR) Composite Sample1 SBR Sample -A minimum of three aliquots collected from the discharge of a reactor. The first aliquot must be collected no later than 1/4 time, the second approximately 1/2 time, and the third no earlier than 3/4 time from the initiation of a discharge cycle to the stoppage of the discharge cycle. The three aliquots must consist of equal portions unless the rate of discharge from the reactor varies significantly during the cycle, in which case aliquots must be proportional to the measurement of the flow occurring at the time of their collection. Single 47 Composite SBR Sample -One SBR sample collected from each reactor during one discharge cycle and composited proportional to the volume discharged from each of the reactors. The sample from at least one of the reactors must represent the expected period of peak influent organic loading. Two-Cycle Composite SBR Sample -One SBR sample collected from two consecutive discharge cycles of each reactor and composited proportional to the volume discharged during each cycle of each reactor. The sample from at least one cycle must represent the expected period of peak influent organic loading. Three-Cycle Composite SBR Sample -One SBR sample collected from three consecutive discharge cycles of each reactor and composited proportional to the volume discharged during each cycle of each reactor. The sample from at least one cycle must represent the expected period of peak influent organic loading. Example of a Single Composite SBR Sample (Two-cycle and three-cycle composited SBR samples are multiples of these composited proportional to the volume discharged in each cycle). [This example assumes an SBR plant with three reactors.] A-1 Proportional to A-2 S-1 Volume Discharged A-3 A-1 Proportional to A-2 S-2 Volume Discharged CS A-3 A-1 Proportional to A-2 S-3 Volume Discharged A-3 A-1 = 1st Aliquot Aeration Basin (Reactor) #1 Aeration Basin (Reactor) #2 Aeration Basin (Reactor) #3 48 A-2 = 2nd Aliquot A-3 = 3rd Aliquot (A-1) + (A-2) + (A-3) = S-_ S-1 = SBR Sample from Reactor #1 S-2 = SBR Sample from Reactor #2 S-3 = SBR Sample from Reactor #3 (S-1) + (S-2) + (S-3) = CS CS = Single Composite SBR Sample Depending on design flow, single, two-cycle, or three-cycle SBR Composite Sample results are used for reporting purposes on discharge monitoring reports. 49 TABLE 1-1 Discharging Lagoons1 Design Capacity (MGD) Parameters & Sample Site 0 - <0.1 0.1 - <0.5 0.5 - <1.0 1.0 - <5.0 5.0 - <10.0 >10.0 pH-each cell & effluent 2/wk 2/wk 2/wk 2/wk 2/wk 2/wk DO-each cell & effluent 2/wk 2/wk 2/wk 2/wk 2/wk 2/wk Alkalinity-each cell & effluent 2/wk 2/wk 2/wk 2/wk 2/wk 2/wk Temperature-each cell & Effluent 2/wk 2/wk 2/wk 2/wk 2/wk 2/wk Fecal Indicator Bacteria- effluent, if treatment process includes disinfection 1/wk 1/wk 1/wk 1/wk 1/wk 1/wk Chlorine Residual- effluent, if treatment process includes chlorination Daily Daily Daily Daily Daily Daily Flow-effluent 2/wk Instantaneous 5/wk Instantaneous 7/wk Totalized 7/wk Totalized 7/wk Totalized 7/wk Totalized BOD5-influent & effluent 1/mo grab 2/mo grab 3/mo 3 hr comp 1/wk 6 hr comp 5/wk 12 hr comp 7/wk 12 hr comp TSS-effluent 1/mo grab 2/mo grab 3/mo 3 hr comp 1/wk 6 hr comp 5/wk 12 hr comp 7/wk 12 hr comp Appearance of effluent 2/wk 2/wk 2/wk 2/wk 2/wk 2/wk 1 For industrial discharging facilities, the control tests listed above only apply to discharging lagoon systems that contain permit limits for oxygen demanding substances if the control test and the parameter listed in the permit are the same. In lieu of the requirements in the above table, industrial facilities may follow a site-specific plan for control tests upon written approval by DEQ. Industrial facilities may develop and use appropriate forms to track process control testing results. 50 TABLE 1-2 Trickling Filter, Rotating Biological Contactor and Other Attached Growth Plants1 Design Capacity (MGD) Parameters & Sample Site 0 - <0.1 0.1 - <0.5 0.5 - <1.0 1.0 - <5.0 5.0 - <10.0 >10.0 pH-each influent & effluent Daily Daily Daily Daily Daily Daily DO- effluent Daily Daily Daily Daily Daily Daily Temperature- effluent Daily Daily Daily Daily Daily Daily Settlement Solids-influent Daily Daily Daily Daily Daily Daily Flow Daily Daily Daily Daily Daily Daily BOD5-influent & effluent 1/mo grab 2/mo grab 3/mo 3 hr comp 1/wk 6 hr comp 5/wk 12 hr comp 7/wk 12 hr comp TSS-influent & effluent 1/mo grab 2/mo grab 3/mo 3 hr comp 1/wk 6 hr comp 5/wk 12 hr comp 7/wk 12 hr comp Fecal Indicator Bacteria – effluent if treatment process includes disinfection 1/wk 1/wk 1/wk 1/wk 1/wk 1/wk Chlorine Residual (only if C1 is added as part of treatment) Daily Daily Daily Daily Daily Daily 1For industrial discharging facilities, the control tests listed above only apply to Trickling Filter, Biological Contactor and other Attached Growth facilities that contain permit limits for oxygen demanding substances if the control test and the parameter listed in the permit are the same. In lieu of the requirements in the above table, industrial facilities may follow a site-specific plan for control tests upon written approval by DEQ. Industrial facilities may develop and use appropriate forms to track process control testing results. 51 TABLE 1-3 Activated Sludge Facilities (including extended aeration and oxidation ditches and including sequential batch reactors)1 Design Capacity (MGD) Parameters & Sample Site 0 - <0.1 0.1 - <0.5 0.5 - <1.0 1.0 - <5.0 5.0 - <10.0 >10.0 pH-influent & effluent Daily Daily Daily Daily Daily Daily DO-effluent Daily Daily Daily Daily Daily Daily Temperature- effluent Daily Daily Daily Daily Daily Daily Settleable Solids- influent Daily Daily Daily Daily Daily Daily Flow Daily Daily Daily Daily Daily Daily BOD5-influent & effluent 1/mo grab 2/mo grab 3/mo 3 hr comp 1/wk 6 hr comp 5/wk 12 hr comp 7/wk 12 hr comp TSS-influent & effluent 1/mo grab 2/mo grab 3/mo 3 hr comp 1/wk 6 hr comp 5/wk 12 hr comp 7/wk 12 hr comp BOD5 and TSS effluent for SBR Process 1/mo single composite SBR sample 2/mo single composite SBR sample 3/mo single composite SBR sample 1/wk 2-cycle composite SBR sample 5/wk 3-cycle composite SBR sample 7/wk 3-cycle composite SBR sample Ammonia-influent* 1/mo grab 2/mo grab 3/mo 3 hr comp 1/wk 6 hr comp 5/wk 12 hr comp 7/wk 12 hr comp Total Phosphorus- influent* 1/mo grab 2/mo grab 3/mo 3 hr comp 1/wk 6 hr comp 5/wk 12 hr comp 7/wk 12 hr comp Fecal Indicator Bacteria- effluent, if treatment process includes disinfection 1/wk 1/wk 1/wk 1/wk 1/wk 1/wk Chlorine Residual (if C1 added as part of treatment) Daily Daily Daily Daily Daily Daily 30 minute Settleability- mixed liquor Daily Daily Daily Daily Daily Daily Sludge Volume index 2/wk 2/wk 3/wk 3/wk 5/wk 7/wk DO-aeration basins 2/wk 2/wk 3/wk 3/wk 5/wk 7/wk Waste Activated Sludge Control Tests- select 1, 2, or 3 below- 1. Food Mass 2. Mean Cell 3. Sludge age As necessary to control operation 3/wk 3/wk 3/wk 3/wk 1For industrial discharging facilities, the control tests listed above only apply to discharging activated sludge facilities that contain permit limits for oxygen demanding substances if the control test and the parameter listed in the permit are the same. In lieu of the requirements in the above table, industrial facilities may follow a site-specific plan for control tests upon written approval by DEQ. Industrial facilities may develop and use appropriate forms to track process control testing results. 52 * Applicable only to permits that contain ammonia and/or phosphorus limits in the months when the permit limit is established. TABLE 1-4 Aerobic Digestors1 Design Capacity (MGD) Parameters & Sample Site 0 - <0.1 0.1 - <0.5 0.5 - <1.0 1.0 - <5.0 5.0 - <10.0 >10.0 DO-basin contents 2/wk 2/wk 3/wk 5/wk 7/wk 7/wk pH-basin contents 2/wk 2/wk 3/wk 5/wk 7/wk 7/wk % Volatile suspended solids destruction None None None None 3/wk 3/wk % Solids None None None when drawn when drawn when drawn 1For industrial discharging facilities, the control tests listed above only apply to discharging Aerobic Digester facilities that contain permit limits for oxygen demanding substances if the control test and the parameter listed in the permit are the same. In lieu of the requirements in the above table, industrial facilities may follow a site-specific plan for control tests upon written approval by DEQ. Industrial facilities may develop and use appropriate forms to track process control testing results. TABLE 1-5 Anaerobic Digestors1 Design Capacity (MGD) Parameters & Sample Site 0 - <0.1 0.1 - <0.5 0.5 - <1.0 1.0 - <5.0 5.0 - <10.0 >10.0 pH 1/wk 1/wk 3/wk 5/wk 7/wk 7/wk Temperature 1/wk 1/wk 3/wk 5/wk 7/wk 7/wk Volatile Acids when drawn when drawn 2/wk 3/wk 3/wk 3/wk Total Alkalinity when drawn when drawn 2/wk 3/wk 3/wk 3/wk % Volatile suspended solids destruction None None None None 3/wk 3/wk % Solids None None when drawn when drawn when drawn when drawn 1For industrial discharging facilities, the control tests listed above only apply to discharging Anaerobic Digester facilities that contain permit limits for oxygen demanding substances if the control test and the parameter listed in the permit are the same. In lieu of the requirements in the above table, industrial facilities may follow a site-specific plan for control tests upon written approval by DEQ. Industrial facilities may develop and use appropriate forms to track process control testing results. 53 APPENDIX B. ANNUAL FEES FOR NON-INDUSTRIAL DISCHARGE PERMITS [REVOKED] APPENDIX B. ANNUAL FEES FOR NON-INDUSTRIAL DISCHARGE PERMITS [NEW] Annual Fee Rating System – The fees for non-industrial discharge permits will be calculated according to an Annual Fee Rating System as follows: (1) The system will contain the following factors to evaluate the complexity of the permit: (a) Discharge complexity level designation (b) Major/minor facility designation (c) Actual wastewater flow rate over the previous twelve (12) months (d) Outfalls (e) Pretreatment Program. (2) Points will be calculated for each of the complexity factors listed in paragraph (1) according to the Instructions for completing the annual permit fee rating sheet (Table G-1) and the annual fee rating work sheet (Table G-2). (3) The total annual fee is calculated by adding the annual discharge fee and the annual pretreatment fee. The annual discharge fee will be calculated by multiplying the total number of points generated using Table B-2 items 1-5 beginning July 1, 2011 by $43.40; and beginning July 1, 2012 by $50.70. The annual pretreatment fee will be calculated by multiplying the total number of points generated using Table B-2 item 6 beginning July 1, 2011 by $42.57; and beginning July 1, 2012 by $49.87. (4) Fees for other disposal methods will be in addition to the fees for discharge and will be in accordance with other applicable rules of DEQ. (5) The annual fee will be paid in advance by all facilities which have a permit in effect as of June 30 of each year. Fees in excess of $1,000 may be paid quarterly upon the request of the permittee. (6) The first year fee for new facilities will be calculated according to the Annual Fee Rating System. Complexity factors based on operational levels at the facility will be calculated using levels proposed in the application. The first year fee for new facilities will be prorated and will cover the period beginning the issuance date of the permit and ending June 30th of the coinciding fiscal year. A statement of the first year fee will be mailed to the applicant with the permit and will be due within 20 days of receipt. (7) A statement of fees due will be mailed to the permittee at the beginning of each fiscal year (July 1). (8) Fees not received by the due date will be subject to an additional fee of ten percent (10%) of the fee set forth in the statement. (9) If the fees have not been received by DEQ within 15 days after the due date set forth in the statement, the permit will be subject to revocation after notice and opportunity for hearing. (10) Fee payment must be made by check, draft, or money order payable to the Oklahoma Department of Environmental Quality and mailed or hand delivered to DEQ. (11) State appropriations and federal grants will be used to offset the annual fee where possible. (12) To assist DEQ in meeting rising costs to the OPDES program associated with permitting and enforcement for non-industrial discharge permits, the fees set out in this Appendix shall be automatically adjusted on July 1st every year to correspond to the percentage, if any, by which the Consumer Price Index (CPI) for the most recent calendar year exceeds the CPI for the previous calendar year. DEQ may round the adjusted fees up to the nearest dollar. DEQ may waive collection of an automatic increase in a given year if it determines other revenues, including 54 appropriated state general revenue funds, have increased sufficiently to make the funds generated by the automatic adjustment unnecessary in that year. A waiver does not affect future automatic adjustments. (a) Any automatic fee adjustment under this subsection may be averted or eliminated, or the adjustment percentage may be modified, by rule promulgated pursuant to the Oklahoma Administrative Procedures Act. The rulemaking process may be initiated in any manner provided by law, including a petition for rulemaking pursuant to 75 O.S. § 305 and OAC 252:4- 5-3 by any person affected by the automatic fee adjustment. (b) If the United States Department of Labor ceases to publish the CPI or revises the methodology or base years, no further automatic fee adjustments shall occur until a new automatic fee adjustment rule is promulgated pursuant to the Oklahoma Administrative Procedures Act. (c) For purposes of this subsection, "Consumer Price Index" or "CPI" means the Consumer Price Index - All Urban Consumers (U.S. All Items, Current Series, 1982-1984=100, CUUR0000SA0) published by the United States Department of Labor. The CPI for a calendar year is the figure denoted by the Department of Labor as the "Annual" index figure for that calendar year. (13) The fees listed in this Appendix shall only be raised in the manner stated in paragraph (12) above, unless a workload and budget analysis is completed, which demonstrates that an additional increase in fees is warranted. TABLE B-1 INSTRUCTIONS FOR COMPLETING NON-INDUSTRIAL DISCHARGE PERMIT ANNUAL FEE RATING WORK SHEET (For Staff Use) 1. DISCHARGE COMPLEXITY LEVEL DESIGNATION From the permit application and permit, determine the appropriate Standard Industrial Classification (SIC) codes for each discharge point by determining the processes and products reported for the facility for sewage treatment plants (SIC 4952), check complexity designation level 1. For other non-industrial discharges, use the latest available edition of Table 1 or 2 from the U.S. Environmental Protection Agency NPDES Permit Rating Worksheet "Complexity Groups for SIC Codes" to determine the applicable subcategory and the related complexity designation. When more than one category applies to effluent from a single discharge point, select the category with the highest complexity level designation. Level 1 is the lowest complexity level designation and Level 5 is the highest. 2. MAJOR/MINOR NPDES FACILITY DESIGNATION Determine if the facility is rated as a major facility according to the latest EPA NPDES Permit Rating System. Check the appropriate answer and record the applicable point amount. 3. WASTEWATER FLOW On the work sheet under the wastewater flow, indicate the appropriate flow range, based on actual flow rate from the previous 12 months. 4. TRADITIONAL POLLUTANT LOADING Determine if the permit contains discharge limitations for biochemical oxygen demand (BOD), 55 chemical oxygen demand (COD), total suspended solids (TSS) and/or ammonia (or nitrogen). Points should be assigned for the parameters limited in the permit. For the purposes of determining permit fees, the daily average load for each parameter will be calculated, based upon the reported values for the parameter and flow rates submitted on self monitoring report (SMR) and/or discharge monitoring report (DMR) forms for the past 12 months. Calculate the BOD and/or COD daily average loads and record the applicable points for each. In some cases, oxygen demand may be limited by some parameter other than BOD or COD [i.e., ultimate oxygen demand (UOD), total organic carbon (TOC), or total oxygen demand (TOD)]. In such cases, record the alternate parameter in the applicable space and calculate the average load and report the applicable point amount. Sum the points for each parameter and record the total traditional pollutant points in the space provided. 5. OUTFALLS On the work sheet under outfalls, indicate the number of outfalls. 6. PRETREATMENT On the work sheet under pretreatment, indicate whether the applicant implements a DEQ- required/approved pretreatment program. 7. RATING POINTS FOR DISCHARGE Sum the rating points assigned to each of the four sections and record the total in the discharge rating points blank. 8. DISCHARGE FEE Multiply the points for discharge by the appropriate $/point as found in section (3) above. 9. RATING POINTS FOR PRETREATMENT Sum the rating points assigned to the two pretreatment sections and record the total in the pretreatment rating points blank. 10. PRETREATMENT EE F Multiply the points for pretreatment by the appropriate $/point as found in section (3) above. 11. ANNUAL PERMIT FEE The annual permit fee will be computed by adding the fee for discharge and the fee for pretreatment. 56 TABLE B-2 DISCHARGE PERMIT ANNUAL FEE RATING WORK SHEET PERMIT NO.____________ PERMITTEE__________________DATE___/___/___ 1. DISCHARGE COMPLEXITY DESIGNATION SELECTED OUTFALL POINT #_______ (with the highest complexity) SELECTED SIC CODE ___________ Complexity Designation Level = _______ 1 (20 points) _______ 2 (25 points) _______ 3 (30 points) _______ 4 (35 points) _______ 5 (40 points) DISCHARGE COMPLEXITY DESIGNATION POINTS_______ 2. MAJOR/MINOR NPDES FACILITY DESIGNATION Is the facility rated as a major facility according to the latest version of the EPA NPDES Permit Rating System? _____________ Yes, then points = 120 _____________ No, then points = 12 MAJOR//MINOR FACILITY DESIGNATION POINTS_________________ 3. WASTEWATER FLOW FLOW VOLUME _____________ (4 points per MGD) Total points _________________ 4. TRADITIONAL POLLUTANTS A. BOD or ___________ Daily Average Load = ________ < 50 lb/day ( 0 points) ________ 50 - 500 ( 5 points) ________ > 500 - 1000 (10 points) ________ > 1000 - 3000 (20 points) ________ > 3000 - 5000 (30 points) 57 ________ > 5000 lb/day (40 points) BOD Points __________ B. COD Daily Average Load = _________ < 100 lb/day ( 0 points) _________ 100 – 500 ( 5 points) _________ > 500 – 1000 (10 points) _________ > 1000 – 5000 (20 points) _________ > 5000 – 10000 (30 points) _________ >10000 - lb/day (40 points) COD Points ___________ C. TSS Daily Average Load = _________ < 100 lb/day ( 0 points) _________ 100 - 500 ( 5 points) _________ > 500 - 1000 (10 points) _________ > 1000 - 5000 (20 points) _________ > 5000 - 10000 (30 points) _________ > 10000 lb/day (40 points) TSS Points ____________ D. AMMONIA or __________ Daily Average Load = __________ < 200 lb/day ( 0 points) __________ 200 - 500 ( 5 points) __________ > 500 - 1000 (10 points) __________ >1000 - 5000 (20 points) __________ >5000 - 10000 (30 points) __________ >10000 lb/day (40 points) AMMONIA (or nitrogen) Points _________ TOTAL POLLUTANT POINTS ___________ 5. OUTFALLS Number of Outfalls _____________ (8 points per outfall over 1, up to 10 outfalls) Total points _________________ 6. PRETREATMENT Does the facility implement a pretreatment program (charged one per city/authority)? 58 ________ Yes, then points = 80 points + 20 points per MGD x 1/3 (Flow volume) (sum of flow rates of all facilities operated by the city/authority) _______ + 20 points per categorical user (with a cap of 10) x 2/3 ________ No, then points = 0 points Total points _________________ =========================== (A) TOTAL RATING POINTS FROM DISCHARGE CALCULATIONS (B) $/POINT FROM SECTION (3) ABOVE (C) DISCHARGE FEE = ( (A) x (B) ) (D) TOTAL RATING POINTS FROM PRETREATMENT CALCULATION (E) $/POINT FROM SECTION (3) ABOVE (F) PRETREATMENT FEE = ( (D) x (E) ) (G) TOTAL FEE = ( (C) + (F) ) 59 APPENDIX C. ANNUAL INDUSTRIAL DISCHARGE FEES [REVOKED] APPENDIX C. ANNUAL INDUSTRIAL DISCHARGE FEES [NEW] Annual Fee Rating System – Fees for industrial discharge permits will be calculated according to an Annual Fee Rating System as follows: (1) The system will contain the following factors to evaluate the complexity of the permit: (a) Major/minor facility designation (b) Discharge complexity level designation (c) Receiving stream beneficial use designation (d) Toxic pollutant potential (e) Traditional pollutant loading (f) Additional factors (2) Points will be calculated for each of the complexity factors listed in paragraph (1) according to the instructions for completing annual permit fee rating sheet in Table C-1 and the annual fee rating worksheet (in substantially same form as Table C-2). (3) The annual fee will be calculated by multiplying the number of points beginning July 1, 2011 by $72.56; beginning July 1, 2012 by $109.56; beginning July 1, 2013 by $142.56; beginning July 1, 2014 by $146.70; and beginning July 1, 2015 by $150.85. (4) Fees for other disposal methods will be in addition to the fees for discharge and will be in accordance with other applicable rules of DEQ. (5) The annual fee will be paid in advance by all facilities which have a permit in effect as of June 30th of each year. (6) The first year fee for new facilities will be calculated according to the Annual Fee Rating System. Complexity factors based on operational levels at the facility will be calculated using levels proposed in the application. The first year fee for new facilities will be prorated and covers the period beginning the issuance date of the permit and ending June 30th of the coinciding fiscal year. A statement of the first year fee will be mailed to the applicant within 10 days of receipt of application and will be due within 20 days of receipt of application. (7) A statement of fees due will be mailed to the permittee on or as soon as practical after July 1 of each year. (8) State appropriations and federal grants will be used to offset the annual fee where possible. (9) The dollar value per point in paragraph (3) above will continue in effect unless a workload and budget analysis is performed in the previous fiscal year justifying that a fee increase is necessary. This analysis must be reviewed and approved by the Environmental Quality Board. (10) To assist DEQ in meeting rising costs to the OPDES program associated with permitting and enforcement for industrial discharge permits, the fees set out in this Appendix shall be automatically adjusted on July 1st every year to correspond to the percentage, if any, by which the Consumer Price Index (CPI) for the most recent calendar year exceeds the CPI for the previous calendar year. DEQ may round the adjusted fees up to the nearest dollar. DEQ may waive collection of an automatic increase in a given year if it determines other revenues, including appropriated state general revenue funds, have increased sufficiently to make the funds generated by the automatic adjustment unnecessary in that year. A waiver does not affect future automatic adjustments. (a) Any automatic fee adjustment under this subsection may be averted or eliminated, or the adjustment percentage may be modified, by rule promulgated pursuant to the Oklahoma Administrative Procedures Act. The rulemaking process may be initiated in any manner provided by law, including a petition for rulemaking pursuant to 75 O.S. § 305 and OAC 60 252:4-5-3 by any person affected by the automatic fee adjustment. (b) If the United States Department of Labor ceases to publish the CPI or revises the methodology or base years, no further automatic fee adjustments shall occur until a new automatic fee adjustment rule is promulgated pursuant to the Oklahoma Administrative Procedures Act. (c) For purposes of this subsection, "Consumer Price Index" or "CPI" means the Consumer Price Index - All Urban Consumers (U.S. All Items, Current Series, 1982-1984=100, CUUR0000SA0) published by the United States Department of Labor. The CPI for a calendar year is the figure denoted by the Department of Labor as the "Annual" index figure for that calendar year. (11) The fees listed in this Appendix shall only be raised in the manner stated in paragraph (10) above, unless a workload and budget analysis is completed, which demonstrates that an additional increase in fees is warranted. TABLE C-1 INSTRUCTIONS FOR COMPLETING INDUSTRIAL DISCHARGE PERMIT ANNUAL FEE RATING WORKSHEET (For Staff Use) 1. MAJOR/MINOR FACILITY DESIGNATION Determine if the facility is rated as a major facility according to the latest EPA NPDES Non- Municipal Permit Rating System. Check the appropriate answer and record the assigned amount for a minor, intermediate minor, complex minor, or $3000 for a major in the base fee blank. 2. DISCHARGE COMPLEXITY LEVEL DESIGNATION From the permit application and permit, determine the appropriate Standard Industrial Classification (SIC) codes for each discharge point by determining the processes and products reported for the industry. Use the latest available edition of Table 1 or 2 from the U.S. Environmental Protection Agency NPDES Permit Rating Worksheet "Complexity Groups for SIC Codes" to determine the applicable Industrial Subcategory and the related complexity designation. When more than one category applies to effluents from a single discharge point, select the category with the highest complexity level designation. Level I is the lowest complexity level designation and Level VI is the highest. If a facility is covered by SIC code 9999 (unclassifiable establishments), a Complexity Designation Level will be assigned as follows: A. If the facility is designated as major by the Environmental Protection Agency, check Category V. B. If the facility is designated as minor by the Environmental Protection Agency, check Category II. Record the applicable SIC code on the worksheet, then enter the highest complexity designation among all discharge points. 3. RECEIVING STREAM BENEFICIAL USE DESIGNATION Review the permit application to determine the name of the receiving stream for each discharge point. Review the current Oklahoma Water Quality Standards and determine the beneficial use designations for the stream. Mark the beneficial use(s) on the Worksheet and add the corresponding point amounts. If there is more than one receiving stream, calculate the beneficial use points for each and record the highest total. 61 4. TOXIC POLLUTANT POTENTIAL From the permit application and permit, determine the Standard Industrial Classification (SIC) codes for each discharge point by determining the processes and products reported for the industry. Use the primary SIC to determine if there are industrial subcategories for that SIC code. Use the latest edition of the U.S. Environmental Protection Agency NPDES Permit Rating Work Sheet to determine the applicable toxicity group. Use the Code of Federal Regulations (CFR) part and sub- part numbers to help identify the appropriate subcategory. If there is more than one applicable subcategory, select the subcategory that has the highest toxicity group. Enter the industrial subcategory number on the work sheet and check the appropriate Total toxicity potential number. Note that regardless of the facility's SIC code, if the facility discharges no process waste stream to a receiving water, the points scored are 0. Enter and record the applicable point amount. 5. TRADITIONAL POLLUTANT LOADING Determine if the permit contains discharge limitations for biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS) and/or ammonia (or nitrogen). Points should be assigned for the parameters limited in the permit. For the purposes of determining permit fees, the daily average load for each parameter will be calculated, based upon the reported values for the parameter and flow rates submitted on self monitoring report (SMR) and/or discharge monitoring report (DMR) forms for the past 12 months. Calculate the BOD and/or COD daily average loads and record the applicable points for each. In some cases, oxygen demand may be limited by some parameter other than BOD or COD [i.e., ultimate oxygen demand (UOD), total organic carbon (TOC), or total oxygen demand (TOD)]. In such cases, record the alternate parameter in the applicable space and calculate the average load and report the applicable point amount. Sum the points for each parameter and record the total traditional pollutant points in the space provided. 7. ADDITIONAL FACTORS Determine if the permitted effluent limitations were assigned based on dissolved oxygen (DO) wasteload allocation modeling, including but not limited to the DO Desktop Model, for the receiving perennial stream. Check the appropriate answer and record the points required. Determine if any permitted effluent limitations were assigned based on a wasteload allocation modeling for conservative parameters. Check the appropriate answer and record the points required. Determine if biomonitoring is required for any discharge point listed on the permit. Check the appropriate answer and record the points required. Determine if the facility has had whole effluent toxicity studies performed within the last two years. If so, determine if the results of any of those tests indicated that the effluent from this facility is/was toxic at the critical low-flow dilution. Check the appropriate answer and record the points required. Determine if the facility is currently required by the U.S. Environmental Protection Agency or the Board to implement a Toxicity Identification Evaluation (TIE) or Toxicity Reduction Evaluation (TRE). Check the appropriate answer and record the points required. 8. TOTAL RATING POINTS Sum the rating points assigned to each of the five sections and record the total in the total rating points blank. 62 9. ANNUAL PERMIT FEE The annual permit fee will be computed by multiplying the rating factor (in $ per point) by the calculated total rating points plus the base fee rate. TABLE C-2 INDUSTRIAL DISCHARGE PERMIT ANNUAL FEE RATING WORKSHEET PERMIT NO.____________ PERMITTEE__________________DATE___/___/___ 1. MAJOR/MINOR DETERMINATION Is the facility rated as a major facility according to the latest version of the EPA NPDES Non- Municipal Permit Rating System? ____________ Yes, then $3000 is the base fee ____________ No, then: • $2,000.00 for a "complex minor," which is defined as a minor industrial discharger who either has pH limit outside the 6.5 to 9.0 range, reasonable potential calculations with or without technology-based limits, any impoundments that meet the Class I or Class II definition contained in OAC 252:616, land applies wastewater, or implements site-specific criteria; • $1,000.00 for a "intermediate minor," which is defined as a minor system that meets one of the following: more than two outfalls, discharges to a 303 (d) listed stream, or has technology-based effluent limitations other than TSS, oil and grease, or pH; • $300 for all other minor systems. 2. DISCHARGE COMPLEXITY DESIGNATION SELECTED OUTFALL POINT #_______ (with the highest complexity) SELECTED SIC CODE ___________ Complexity Designation Level = _______ I (0 points) _______ II (10 points) _______ III (20 points) _______ IV (30 points) _______ V (40 points) _______ VI (20 points) DISCHARGE COMPLEXITY DESIGNATION POINTS_______ 3. RECEIVING STREAM BENEFICIAL USE DESIGNATION 63 Selected Discharge Point #______ (with the highest points) Beneficial Use Designations and their assigned points for the selected Receiving Stream: ______ (5 points) Public and Private Water Supply ______ (3 points) Emergency Public and Private Water Supply ______ (5 points) Fish and Wildlife Propagation/Warm Water Aquatic Community ______ (1 point) Fish and Wildlife Propagation/Habitat Limited Aquatic Community ______ (10 points) Fish and Wildlife Propagation/Cool Water Aquatic Community ______ (10 points) Fish and Wildlife Propagation/Trout Fisheries (put and take) ______ (1 point) Agriculture ______ (3 points) Agriculture/Class I Irrigation ______ (2 points) Agriculture/Class II Irrigation ______ (1 point) Agriculture/Class III Irrigation ______ (0 points) Hydroelectric Power ______ (1 point) Industrial and Municipal Process and Cooling Water ______ (5 points) Primary Body Contact Recreation ______ (1 point) Secondary Body Contact Recreation ______ (0 points) Navigation ______ (1 point) Aesthetics ______ (10 points) Limitation for Additional Protection RECEIVING STREAM POINTS_________________ 4. TOXIC POLLUTANT POTENTIAL Selected Outfall Point #_____________ (with highest Total toxicity number) Selected SIC Code _________________ Selected Industrial Subcategory Code _________________ Toxicity Groups Points No Process Waste Stream 0 _____ 1. 5 _____ 2. 10 _____ 3. 15 _____ 4. 20 _____ 5. 25 _____ 6. 30 _____ 7. 35 _____ 8. 40 _____ 9. 45 _____ 10. 50 TOXIC POLLUTANT POTENTIAL POINTS__________ 64 5. TRADITIONAL POLLUTANTS A. BOD or ___________ Daily Average Load = ________ < 50 lb/day ( 0 points) ________ 50 - 500 ( 5 points) ________ > 500 - 1000 (10 points) ________ >1000 - 3000 (20 points) ________ >3000 - 5000 (30 points) ________ >5000 lb/day (40 points) BOD Points __________ B. COD Daily Average Load = _________ < 100 lb/day ( 0 points) _________ 100 – 500 ( 5 points) _________ > 500 – 1000 (10 points) _________ > 1000 – 5000 (20 points) _________ > 5000 – 10000 (30 points) _________ >10000 - lb/day (40 points) COD Points ___________ C. TSS Daily Average Load = _________ < 100 lb/day ( 0 points) _________ 100 - 500 ( 5 points) _________ > 500 - 1000 (10 points) _________ > 1000 - 5000 (20 points) _________ > 5000 - 10000 (30 points) _________ >10000 lb/day (40 points) TSS Points ____________ D. AMMONIA or __________ Daily Average Load = __________ < 200 lb/day ( 0 points) __________ 200 - 500 ( 5 points) __________ > 500 - 1000 (10 points) __________ >1000 - 5000 (20 points) __________ >5000 - 10000 (30 points) __________ >10000 lb/day (40 points) AMMONIA (or nitrogen) Points _________ TOTAL POLLUTANT POINTS ___________ 65 6. ADDITIONAL FACTORS Were any of the effluent limitations assigned to the discharge based on DO related wasteload allocation modeling for the receiving perennial stream? _____________ Yes, then points = 5 _____________ No, then points = 0 Were any of the effluent limitations assigned to the discharge based on a wasteload allocation modeling for conservative parameters? _____________ Yes, then points = 5 _____________ No, then points = 0 Is biomonitoring required for any discharge point listed on the permits? _____________ Yes, then points = 10 _____________ No, then points = 0 Has any effluent from the facility shown toxicity at the critical low flow _____________ Yes, then points = 25 _____________ No, then points = 0 Is the facility currently required by the U.S. Environmental Protection Agency or the Board to implement a Toxicity Identification Evaluation (TIE) or a Toxicity Reduction Evaluation (TRE)? _____________ Yes, then points = 100 _____________ No, then points = 0 ADDITIONAL FACTORS POINTS_____________ =========================== (A) BASE FEE $ (B) RATING FACTOR ($______/point) (C) TOTAL RATING POINTS____________ (D) TOTAL AMOUNT DUE (A) + ( (B) X (C) ) $ APPENDIX E. FEES FOR INDUSTRIAL USERS [REVOKED] APPENDIX E. FEES FOR INDUSTRIAL USERS [NEW] (A) The fee for industrial users discharging to non-pretreatment Publicly Owned Treatment Works (POTWs) will be as follows: beginning July 1, 2011, $1,100.00; beginning July 1, 2012, $1,920.00; beginning July 1, 2013, $4,150.00; beginning July 1, 2014, $4,200.00; beginning July 66 1, 2015 and thereafter, $4,270.00. (B) Fee payment must be made by check, draft, or money order payable to the Oklahoma Department of Environmental Quality and mailed or hand delivered to DEQ. (C) The annual fee must be paid in advance by all facilities which have a permit in effect as of June 30 of each year. (D) The first year fee for facilities will be prorated and will cover the period beginning the issuance date of the permit and ending June 30th of the coinciding fiscal year. A statement of the first year fee will be mailed to the applicant within 10 days of receipt of application and will be due within 20 days of receipt of application. (E) A statement of fees due will be mailed to the permittee at the beginning of each fiscal year (July 1). (F) Fees not received by the due date will be subject to an additional fee of ten percent (10%) of the fee set forth in the statement. (G) If the fees have not been received by DEQ within 15 days after the due date set forth in the statement, the permit will be subject to revocation after notice and opportunity for hearing. (H) State appropriations and federal grants will be used to offset the annual fee where possible. (I) To assist DEQ in meeting rising costs to the OPDES program associated with permitting and enforcement for industrial users discharging to nonpretreatment POTWs, the fees set out in this Appendix shall be automatically adjusted on July 1st every year to correspond to the percentage, if any, by which the Consumer Price Index (CPI) for the most recent calendar year exceeds the CPI for the previous calendar year. DEQ may round the adjusted fees up to the nearest dollar. DEQ may waive collection of an automatic increase in a given year if it determines other revenues, including appropriated state general revenue funds, have increased sufficiently to make the funds generated by the automatic adjustment unnecessary in that year. A waiver does not affect future automatic adjustments. (1) Any automatic fee adjustment under this subsection may be averted or eliminated, or the adjustment percentage may be modified, by rule promulgated pursuant to the Oklahoma Administrative Procedures Act. The rulemaking process may be initiated in any manner provided by law, including a petition for rulemaking pursuant to 75 O.S. § 305 and OAC 252:4-5-3 by any person affected by the automatic fee adjustment. (2) If the United States Department of Labor ceases to publish the CPI or revises the methodology or base years, no further automatic fee adjustments shall occur until a new automatic fee adjustment rule is promulgated pursuant to the Oklahoma Administrative Procedures Act. (3) For purposes of this subsection, "Consumer Price Index" or "CPI" means the Consumer Price Index - All Urban Consumers (U.S. All Items, Current Series, 1982-1984=100, CUUR0000SA0) published by the United States Department of Labor. The CPI for a calendar year is the figure denoted by the Department of Labor as the "Annual" index figure for that calendar year. (J) The fees listed in this Appendix shall only be raised in the manner stated in paragraph (I) above, unless a workload and budget analysis is completed, which demonstrates that an additional increase in fees is warranted. 67 APPENDIX F. FEES FOR LAND APPLICATION OF BIOSOLIDS [REVOKED] APPENDIX F. FEES FOR LAND APPLICATION OF BIOSOLIDS [NEW] (a) Beginning July 1, 2008, the annual permit fee is: (1) Population Range 0-100 - $261.00 (2) Population Range 101-500 - $292.00 (3) Population Range 501-1,000 - $509.00 (4) Population Range 1,001-5,000 - $881.00 (5) Population Range 5,001+ - $1,005.00 (b) Fees are due upon receipt of an invoice mailed by DEQ annually. Upon payment of the annual fee, the permit will continue in effect for one year but in no case past its expiration. Failure to pay the fee may result in the suspension or termination of the permit. (c) Financial assurance (1) If the applicant is not a city, town or other public entity, the applicant must submit the following information to DEQ: (A) Expected costs for operation and maintenance, replacement and closure; (B) Continued existence and financial accountability; and that (C) Assurance that provisions have been made for continued existence of the operating entity for the expected life of the facility. (2) Continued existence may be demonstrated in one of the following fashions: (A)The applicant may be a property owners association or a nonprofit corporation established under the laws of the State of Oklahoma. The association must have the legal authority to own and manage the land application system including the authority to set and collect fees from users for operation and maintenance of the system. The bylaws of the entity must contain a provision that dissolution cannot occur until the system is either closed in accordance with applicable DEQ rules or transferred to another viable operating entity. The instrument creating the association must be filed in the office of the county clerk where the property is located; or (B) The applicant must provide proof of a sufficient amount on deposit to the credit of a trust, the powers of which are to operate and maintain the wastewater system for the expected life of the facility; or (C) Other proof of financial viability, such as the issuance of a bond or insurance contract covering the operation and maintenance of the wastewater system for the life of the system may be submitted to DEQ for approval; and (3) Costs for closure of the wastewater system as required by law must be included in any funding plan. (4) If the information fails to demonstrate the on-going viability of the operation, the application will be denied. (d) To assist DEQ in meeting rising costs to the OPDES program associated with the land application of biosolids, the fees set out in this Appendix shall be automatically adjusted on July 1st every year to correspond to the percentage, if any, by which the Consumer Price Index (CPI) for the most recent calendar year exceeds the CPI for the previous calendar year. DEQ may round the adjusted fees up to the nearest dollar. DEQ may waive collection of an automatic increase in a given year if it determines other revenues, including appropriated state general revenue funds, have increased sufficiently to make the funds generated by the automatic adjustment unnecessary in that year. A waiver does not affect future automatic adjustments. (1) Any automatic fee adjustment under this subsection may be averted or eliminated, or the 68 adjustment percentage may be modified, by rule promulgated pursuant to the Oklahoma Administrative Procedures Act. The rulemaking process may be initiated in any manner provided by law, including a petition for rulemaking pursuant to 75 O.S. § 305 and OAC 252:4- 5-3 by any person affected by the automatic fee adjustment. (2) If the United States Department of Labor ceases to publish the CPI or revises the methodology or base years, no further automatic fee adjustments shall occur until a new automatic fee adjustment rule is promulgated pursuant to the Oklahoma Administrative Procedures Act. (3) For purposes of this subsection, "Consumer Price Index" or “"CPI" means the Consumer Price Index - All Urban Consumers (U.S. All Items, Current Series, 1982-1984=100, CUUR0000SA0) published by the United States Department of Labor. The CPI for a calendar year is the figure denoted by the Department of Labor as the "Annual" index figure for that calendar year. (e) The fees listed in this Appendix shall only be raised in the manner stated in paragraph (d) above, unless a workload and budget analysis is completed, which demonstrates that an additional increase in fees is warranted. 69 APPENDIX G: MONITORING FREQUENCIES FOR BACKWASH DISCHARGE FROM POTABLE WATER TREATMENT FACILITIES [REVOKED] APPENDIX G: MONITORING FREQUENCIES FOR BACKWASH DISCHARGE FROM POTABLE WATER TREATMENT FACILITIES [NEW] Effluent Parameter1 Flow (MGD) 0 – <0.1 0.1 - <0.5 0.5 - <1.0 1.0 - <5.0 5.0 - <10.0 >=10 Flow 2/week Instantaneous 5/week Instantaneous Daily Totalized Daily Totalized Daily Totalized Daily Totalized TSS 1/month Grab 2/month Grab 3/month Grab 1/week Grab 5/week Grab 7/week Grab Fe, Dissolved2 1/month Grab 1/month Grab 1/month Grab 2/month Grab 2/month Grab 2/month Grab Al, Dissolved2 1/month Grab 1/month Grab 1/month Grab 2/month Grab 2/month Grab 2/month Grab Mn, Dissolved2 1/month Grab 1/month Grab 1/month Grab 2/month Grab 2/month Grab 2/month Grab pH 2/week Grab 2/week Grab 2/week Grab 2/week Grab 2/week Grab 2/week Grab 1Additional parameters may be required to be monitored in accordance with frequencies specified in this Chapter for reverse osmosis, microfiltration, nanofiltration, ion exchange, electro dialysis, and other advanced technologies. 2Parameters to be monitored only for conventional water treatment plants. 70 APPENDIX H. PRIORITY AND NONPRIORITY POLLUTANTS WITH NUMERICAL CRITERIA REQUIRING REASONABLE POTENTIAL SCREENING [NEW] The priority pollutants are listed in Table H-1. Those having state numerical criteria or federal numerical guidelines for the consumption of fish flesh (re: NRWQC), and which require reasonable potential screening if present in an effluent are marked with a diamond (). Pollutants with state numerical criteria are indicated according to type of criteria. Pollutants which have NRWQC human health/fish flesh guidelines are screened only if the Fish Consumption beneficial use applies to the discharge and there is no state criterion for the pollutant. Predicted exceedances of NRWQC guidelines will result in effluent and/or background monitoring. Nonpriority pollutants with state and federal criteria are listed in Table H-2. WET testing parameters and their STORET numbers are listed in Table H-3. Table H-1. Priority Pollutants with State Water Quality Criteria or National Recommended Water Quality Criteria Requiring Reasonable Potential Screening Pollutant CAS No. STORE T No. MQL (g/L) NRWQC Human Health1 State Criteria2 Aquatic Toxicity Human Health Raw Water Agriculture Metals, Cyanide and Total Phenols Antimony, total 7440360 01097 60  --- --- --- --- Arsenic, total 7440382 01002 0.5     --- Beryllium, total 7440417 01012 5 --- --- --- --- --- Cadmium, total 7440439 01027 1 ---    --- Chromium, total 7440473 01034 10 ---    --- Chromium (3+) 16065831 01033 10 Chromium (6+) 18540299 01032 10 Copper, total 7440508 01042 1   ---  --- Lead, total 7439921 01051 0.5 ---    --- Mercury, total 7439976 71900 0.05     --- Nickel, total 7440020 01067 10    --- --- Selenium, total 7782492 01147 5   ---  --- Silver, total 7440224 01077 0.5 ---    --- Thallium, total 7440280 01059 0.5    --- --- Zinc, total 7440666 01092 20   ---  --- Cyanide, total 57125 00720 10   ---  --- Phenols, total 108952 46000 10 --- ---  --- --- 2,3,7,8-Tetrachlorodibenzo-p Dioxin 1746016 34675 0.00001  ---  --- --- 1 From National Recommended Water Quality Criteria, Pub. No. EPA 822-Z-99-001, April 1999 2 DEQ-adopted numerical water quality criteria, OAC 252:730, Subchapter 5 71 Table H-1 (continued). Priority Pollutants with State Water Quality Criteria or National Recommended Water Quality Criteria Requiring Reasonable Potential Screening Pollutant CAS No. STORE T No. MQL (g/L) NRWQC Human Health1 State Criteria2 Aquatic Toxicity Human Health Raw Water Agriculture Volatile Organics Acrolein 107028 34210 50  ---  --- --- Acrylonitrile 107131 34215 50    --- --- Benzene 71432 34030 10    --- --- Bromoform 75252 32104 10  --- --- --- --- Carbon Tetrachloride 56235 32102 10  ---  --- --- Chlorobenzene 108907 34301 10  --- --- --- --- Chlorodibromomethane 124481 32105 10  --- --- --- --- Chloroethane 75003 34311 50 --- --- --- --- --- 2-Chloroethylvinyl ether 110758 34576 10 --- --- --- --- --- Chloroform 67663 32106 10  ---  --- --- Dichlorobromomethane 75274 32101 10  ---  --- --- 1,1-Dichloroethane 75343 34496 10 --- --- --- --- --- 1,2-Dichloroethane 107062 34536 10  --- --- --- --- 1,1-Dichloroethylene 75354 34501 10  --- --- --- --- 1,2-Dichloropropane 78875 34541 10  --- --- --- --- 1,3-Dichloropropylene 542756 34561 10  --- --- --- --- Ethylbenzene 100414 34371 10  ---  --- --- Methyl bromide [Bromomethane] 74839 34413 50  --- --- --- --- Methyl chloride [Chloromethane] 74873 34418 50 --- --- --- --- --- Methylene chloride 75092 34423 20  --- --- --- --- 1,1,2,2-Tetrachloroethane 79345 34516 10  --- --- --- --- Tetrachloroethylene 127184 34475 10    --- --- Toluene 108883 34010 10    --- --- 1,2-Trans-dichloroethylene 156605 34546 10  --- --- --- --- 1,1,1-Trichloroethane [1-1-1 TCE] 71556 34506 10 --- ---  --- --- 1,1,2-Trichloroethane 79005 34511 10  --- --- --- --- Trichloroethylene 79016 39180 10  --- --- --- --- Vinyl chloride 75014 39175 10  --- --- --- --- 1 From National Recommended Water Quality Criteria, Publication No. EPA 822-Z-99-001, April 1999 2 DEQ-adopted numerical water quality criteria, OAC 252:730, Subchapter 5 72 Table H-1 (continued). Priority Pollutants with State Water Quality Criteria or National Recommended Water Quality Criteria Requiring Reasonable Potential Screening Pollutant CAS No. STORET No. MQL (mg/L) NRWQC Human Health1 State Criteria2 Aquatic Toxicity Human Health Raw Water Agriculture Acid Organics 2-Chlorophenol 95578 34586 20  --- --- --- --- 2,4-Dichlorophenol 120832 34601 20  --- --- --- --- 2,4-Dimethylphenol 105679 34606 20  --- --- --- --- 4,6-Dinitro-o-cresol [2-Methyl-4,6- dinitrophenol] 534521 34657 50  --- --- --- --- 2,4-Dinitrophenol 51285 34616 50  -- --- --- -- 2-Nitrophenol 88755 34591 20 --- --- --- --- --- 4-Nitrophenol 100027 34646 50 --- --- --- --- --- p-Chloro-m-cresol 59507 34452 20 --- --- --- --- -- Pentachlorophenol 87865 39032 50    --- --- Phenol 108952 34694 20  --- --- --- --- 2,4,6-Trichlorophenol 88062 34621 20  --- --- --- --- Base / Neutral Organics Acenaphthene 83329 34205 20 --- --- --- --- Acenaphthylene 208968 34200 20 --- --- --- --- --- Anthracene 120127 34220 20  --- --- --- --- Benzidine 92875 39120 50  --- ---  --- Benzo(a)anthracene 56553 34526 20  --- --- --- --- Benzo(a)pyrene 50328 34247 20  --- --- --- --- Benzo(b)fluoranthene [3,4- Benzofluoranthene] 205992 34230 20  --- --- --- --- Benzo(ghi)perylene 191242 34521 20 --- --- --- --- --- Benzo(k)fluoranthene 207089 34242 20  --- --- --- --- Bis (2-chloroethoxy) methane 111911 34278 20 --- --- --- --- --- Bis (2-chloroethyl) ether 111444 34273 20  --- --- --- --- Bis (2-chloroisopropyl) ether 39638329 34283 20  --- --- --- --- Bis (2-ethylhexyl) phthalate 117817 39100 20  ---  --- --- 4-Bromophenyl phenyl ether 101553 34636 20 --- --- --- --- --- Butylbenzyl phthalate 85687 34292 20  ---   --- 2-Chloronaphthalene 91587 34581 20  --- --- --- --- 4-Chlorophenyl phenyl ether 7005723 34631 20 --- --- --- --- --- Chrysene 218019 34320 20  --- --- --- --- Dibenzo(a,h)anthracene 53703 34556 20  --- --- --- --- 1,2-Dichlorobenzene 95501 34536 20  --- --- --- --- 1,3-Dichlorobenzene 541731 34566 20  --- --- --- --- 1 From National Recommended Water Quality Criteria, Publication No. EPA 822-Z-99-001, April 1999 2 DEQ-adopted numerical water quality criteria, OAC 252:730, Subchapter 5 73 Table H-1 (continued). Priority Pollutants with State Water Quality Criteria or National Recommended Water Quality Criteria Requiring Reasonable Potential Screening Pollutant CAS No. STORE T No. MQL (g/L) NRWQC Human Health1 State Criteria2 Aquatic Toxicity Human Health Raw Water Agriculture Base / Neutral Organics 1,4-Dichlorobenzene 106467 34571 20  --- --- --- --- 3,3'-Dichlorobenzidine 91941 34631 20  --- --- --- --- Diethyl phthalate 84662 34336 20  ---  --- --- Dimethyl phthalate 131113 34341 20  ---  --- --- Di-n-butyl phthalate 84742 39110 20  ---  --- --- 2,4-Dinitrotoluene 121142 34611 20  --- --- --- --- 2,6-Dinitrotoluene 606202 34626 20 --- --- --- --- --- Di-n-octyl phthalate 117840 34596 20 --- --- --- --- --- 1,2-Diphenylhydrazine (as Azobenzene) 122667 34346 20  --- --- --- --- Fluoranthene 206440 34376 20  --- --- --- --- Fluorene 86737 34381 20  --- --- --- --- Hexachlorobenzene 118741 39700 10  ---  --- --- Hexachlorobutadiene 87683 34391 20  --- --- --- --- Hexachlorocyclopentadiene 77474 34386 20  --- --- --- --- Hexachloroethane 67721 34396 20  --- --- --- --- Ideno (1,2,3-cd) pyrene 193395 34403 20  --- --- --- --- Isophorone 78591 34408 20  --- --- --- --- Naphthalene 91203 34696 10 --- --- --- --- --- Nitrobenzene 98953 34447 20  --- --- --- --- n-Nitrosodimethylamine 62759 34438 50  --- --- --- --- n-Nitrosodi-n-propylamine 621647 34428 20  --- --- --- --- n-Nitrosodiphenylamine 86306 34433 20  --- --- --- --- Phenanthrene 85018 34461 20 --- --- --- --- --- Pyrene 129000 34469 20  --- --- --- --- 1,2,4-Trichlorobenzene 120821 34551 20  --- --- --- --- Pesticides Aldrin 309002 39330 0.05    --- --- alpha-BHC 319846 39337 0.05  --- --- --- --- beta-BHC 319857 39338 0.05  --- --- --- --- gamma-BHC [Lindane] 58899 34266 0.05     --- delta-BHC 319868 34259 0.05 --- --- --- --- --- Chlordane 57749 39350 0.2    --- --- 4,4'-DDT 50293 39300 0.05    --- --- 4,4'-DDE 72559 39320 0.05  --- --- --- 1 From National Recommended Water Quality Criteria, Publication No. EPA 822-Z-99-001, April 1999 2 DEQ-adopted numerical water quality criteria, OAC 252:730, Subchapter 5 74 Table H-1 (continued). Priority Pollutants with State Water Quality Criteria or National Recommended Water Quality Criteria Requiring Reasonable Potential Screening Pollutant CAS No. STORET No. MQL (g/L) NRWQC Human Health1 State Criteria2 Aquatic Toxicity Human Health Raw Water Agriculture Pesticides 4,4'-DDD 72548 39310 0.05  ---  --- --- Demeton 1 Diazinon 1 Dieldrin 60571 39380 0.05    --- --- alpha-Endosulfan 959988 34361 0.05   --- --- --- beta-Endosulfan 33213659 34356 0.05   --- --- --- Endosulfan sulfate 1031078 34351 0.05  --- --- --- --- Endrin 72208 39390 0.05     --- Endrin aldehyde 7421934 34366 0.05  --- --- --- --- Heptachlor 76448 39410 0.05    --- --- Heptachlor epoxide 1024573 39420 0.05  --- --- --- --- Toxaphene 8001352 39400 0.3   ---  --- PCBs PCB-1242 39496 0.25 --- --- --- --- --- PCB-1254 39504 0.25 --- --- --- --- --- PCB-1221 39488 0.25 --- --- --- --- --- PCB-1232 39492 0.25 --- --- --- --- --- PCB-1248 39500 0.25 --- --- --- --- --- PCB-1260 39508 0.25 --- --- --- --- --- PCB-1016 34671 0.25 --- --- --- --- --- PCBs, total 04166 0.25    --- --- 2,4,5 – TP (Silvex) 0.25 1 From National Recommended Water Quality Criteria, Publication No. EPA 822-Z-99-001, April 1999 2 DEQ-adopted numerical water quality criteria, OAC 252:730, Subchapter 5 75 Table H-2. Nonpriority Pollutants with State Water Quality Criteria or National Recommended Water Quality Criteria Requiring Reasonable Potential Screening Pollutant CAS No. STORE T No. MQL (g/L) NRWQC Human Health1 State Criteria2 Aquatic Toxicity Human Health Raw Water Agriculture Nonpriority Pollutants Ammonia 7664417 00610 100 --- 3 --- --- --- Asbestos 1332214 948 ---  --- --- --- --- Barium 7440393 01007 10  --- ---  --- Bis-chloromethyl ether 542881 34268 20  --- --- --- --- Chloride 16887006 941 10000 --- --- --- ---  Chlorine 7782505 50060 100 --- 3 --- --- --- 2-(2,4,5-Trichlorophenoxy) propionic acid [2,4,5-TP Silvex] 93721 39760 0.5 ---  ---  --- 2,4-Dichlorophenoxyacetic acid [2,4-D] 94757 39730 1 --- --- ---  --- Chloropyrifos [Dursban] 2921882 81403 0.05 ---  --- --- --- Demeton 8065483 39560 1 ---  --- --- --- Detergents, total 51582 100 --- --- ---  --- Diazinon 333415 10408 1 ---  --- --- --- Fluoride @ 90 ﾟF 16984488 951 1000 --- --- ---  --- Guthion [Methyl azinphos] 86500 39580 1 ---  --- --- --- Hexachlorocyclohexane-Technical 319868 77835 5  --- --- --- --- Hexahydro-1,3,5-trinitro-1,3,5-triazine [RDX] 121824 81364 140 ---  --- --- --- Iron 7439896 00980 200  --- --- --- --- Malathion 121755 39530 1 ---  --- --- --- Manganese 7439965 01055 50  --- --- --- --- Methoxychlor 72435 39480 0.05   ---  --- Methylene blue active substances 61734 47021 100 ---  ---  --- Mirex 2385855 39755 0.05 ---  --- --- --- Nitrate 14797558 00620 50  --- ---  --- Nitrosamines --- 50  --- --- --- --- n-Nitrosodibutylamine 924163 78207 50  --- --- --- --- 1From National Recommended Water Quality Criteria, Publication No. EPA 822-Z-99-001, April 1999. 2DEQ-adopted numerical water quality criteria, OAC 252:730, Subchapter 5. 3Ammonia and chlorine criteria apply to implementation of narrative toxicity criterion under OAC 252:730 and 40 CFR Part 122.44(d)(1)(vi). 76 Table H-2 (continued). Nonpriority Pollutants with State Water Quality Criteria or National Recommended Water Quality Criteria Requiring Reasonable Potential Screening Pollutant CAS No. STORET No. MQL (g/L) NRWQC Human Health1 State Criteria2 Aquatic Toxicity Human Health Raw Water Agriculture Nonpriority Pollutants n-Nitrosodiethylamine 55185 78200 50  --- --- --- --- n-Nitrosopyrrolidine 930552 78206 50  --- --- --- --- Nonylphenol 25154523 10395 100 ---  --- --- --- Parathion 56382 39540 1 ---  --- --- --- Pentachlorobenzene 608935 77793 50  --- --- --- --- Perchlorate 7601903 3215 5 ---   --- --- Phthalate esters (except butylbenzyl) 39117 --- --- --- ---  --- Sulfate 00946 10000 --- --- --- ---  Total Dissolved Solids [TDS] 70300 10000 --- --- --- ---  1,2,4,5-Tetrachlorobenzene 95943 78028 50  --- --- --- --- 2,4,5-Trichlorophenol 95954 81848 50  --- --- --- --- 2,4,6-Trinitrotoluene 81360 --- ---  --- --- --- 1From National Recommended Water Quality Criteria, Publication No. EPA 822-Z-99-001, April 1999. 2DEQ-adopted numerical water quality criteria, OAC 252:730, Subchapter 5. 77 Table H-3. WET Testing and WET Limit Parameters Parameters STORET No. NRWQC Human Health1 State Criteria2 Aquatic Toxicity Human Health Raw Water Agriculture 48-hour Acute LC50, Static Renewal, Freshwater Daphnia magna P/F survival TIM3C ---  --- --- --- LC50 effluent concentration TAM3C ---  --- --- --- % mortality in 100% effluent TJM3C ---  --- --- --- Daphnia pulex P/F survival TIM3D ---  --- --- --- LC50 effluent concentration TAM3D ---  --- --- --- % mortality in 100% effluent TJM3D ---  --- --- --- Pimephales promelas P/F survival TIM6C ---  --- --- --- LC50 effluent concentration TAM6C ---  --- --- --- % mortality in 100% effluent TJM6C ---  --- --- --- WET Limit LC50 > 100% 22414 ---  --- --- --- 7-day Chronic NOEC, Static Renewal, Freshwater Ceriodaphnia dubia P/F survival TLP3B ---  --- --- --- NOECL (lethality) TOP3B ---  --- --- --- % mortality in critical dilution TJP3B ---  --- --- --- P/F reproduction TGP3B ---  --- --- --- NOECS (reproduction) TPP3B ---  --- --- --- % CV TQP3B ---  --- --- --- Pimephales promelas P/F survival TLP6C ---  --- --- --- NOECL (lethality) TOP6C ---  --- --- --- % mortality in critical dilution TJP6C ---  --- --- --- P/F growth TGP6C ---  --- --- --- NOECS (growth) TPP6C ---  --- --- --- % CV TQP6C ---  --- --- --- WET Limit NOECL ≥ critical dilution 22414 ---  --- --- --- 1 From National Recommended Water Quality Criteria, Publication No. EPA 822-Z-99-001, April 1999. 2 DEQ-adopted numerical water quality criteria, OAC 252:730, Subchapter 5. 78 APPENDIX I. METHODOLOGY AND EQUATIONS FOR CHARACTERIZING EFFLUENT AND BACKGROUND CONCENTRATIONS IN DETERMINATION OF REASONABLE POTENTIAL TO EXCEED NUMERICAL CRITERIA [NEW] I. EFFLUENT A. Measures of central tendency. CE(mean) represents the mean of an effluent distribution. CE(mean) is a geometric mean, unless the geometric mean is not determinable in which case an arithmetic mean is used. Where one or the other form of the mean must be used in an equation, that form is explicitly stated. (1) CE(avg). CE(avg) is calculated as follows: [I-1] (2) CE(geomean). CE(geomean) is calculated according to either of the following two forms, which are equivalent. [I-2] B. Effluent variability. An effluent data set's standard deviation is the primary measure of its variability. Generally, as the mean of an effluent distribution increases, its standard deviation also tends to increase. The coefficient of variation is a measure of a data set's variability relative to its arithmetic mean. (1) Standard deviation of untransformed effluent data set (sx). The standard deviation of an untransformed effluent data set is calculated as follows: , [I-3] where N is the number of data points in the effluent data set. (2) Standard deviation of log-transformed effluent data set (sln(x)). The standard deviation of a log-transformed effluent data set is calculated as follows: N x C N 1 i i E(avg)       =  = N N 1 i i N 1 i i E(geomean) x N ) (x ln EXP C   = = =                   = ( ) ( ) 1 - N N x - x N s N 1 i 2 N 1 i i 2 i x   = =         = 79 , [I-4] where N is the number of data points in the effluent data set. The standard deviation of a log-transformed data set applies only to the transformed data set and cannot be translated back into an equivalent untransformed data set standard deviation, for example: (3) CV. The CV of an untransformed data set is calculated as follows, when using at least ten (10) data points (if less than ten data points are available, a value of 0.6 is assumed): , [I-5] where CE(avg) and sx are determined according to Equations I-1 and I-3, respectively. C. C95 and C95(M). The use of both C95 and C95(M) assumes a log-normal effluent distribution. For the purpose of determining whether effluent limitations are required, C95 represents the 95th percentile effluent concentration. For the purpose of determining whether further effluent monitoring is required, if C95 does not exhibit reasonable potential then C95(M) is used. (1) C95. The method by which C95 is determined is dependent on whether there are 10or more data points available. (a) Less than 10 data points available. The mean effluent concentration (CE(mean)) is multiplied by a reasonable potential factor (RPF95), which represents the 95th percentile maximum likelihood estimator for a log-normal distribution, according to Equation I- 6. If only one data point is available, it is assumed to represent the effluent mean. RPF95 is calculated according to Equation I-7, assuming a CV of 0.6. [I-6] [I-7] Since a CV of 0.6 is assumed, RPF95 = 2.135 and Equation I-6 reduces to C95 = CE(mean)  2.135. Where determinable, the geometric mean, CE(geomean), shall be used as CE(mean) ( ) ( ) ( ) ( ) 1 - N N x ln - x ln N s N 1 i 2 N 1 i i 2 i (x) ln   = =         = ( ) x (x) ln s s EXP  E(avg) x C s CV = 95 E(mean) 95 RPF C C  = ( ) ( ) ( ) 2 2 95 CV 1 ln 0.5 CV 1 ln 1.645 EXP RPF + − + = 80 in Equation I-6. The arithmetic mean, CE(avg), may be used if the geometric mean is unknown or undeterminable. (b) Ten or more data points available. C95 is obtained directly from the data set as the inverse of the cumulative log-normal distribution function at a 95% probability using Equation I-8. [I-8] where ln(x)avg is the arithmetic mean of the log-transformed effluent data set and s ln(x) is the standard deviation of the log-transformed effluent data set. (2) C95(M). The smaller the size of an effluent data set, the greater the uncertainty of its distribution. The extreme case occurs where only one data point is available. Where less than 10 data points are available to determine C95, further effluent monitoring may be warranted for the purpose of future reevaluation of reasonable potential. The method used, referred to as the TSD method, is described in Section 3.3.2 of Technical Support Document for Water Quality-Based Toxics Control, EPA Publication No. EPA/505/2-90- 001, March 1991. A log-normal distribution and a CV of 0.6 are assumed. C95(M) is calculated according to Equation I-9. [I-9] CE(max) is the highest concentration of a toxicant in its effluent data set. If only one data point is available, it is considered to be CE(max). RPF95(M) is determined at a 95% confidence level and a 95% probability basis, according to Equation I-10. [I-10] where zN is the upper kth percentile of the normal distribution, k = (1-confidence level)1/N = (0.05)1/N for the 95% confidence level, and CV=0.6. ( ) (x) ln avg 95 s 1.645 (x) ln EXP C  + = 95(M) E(max) 95(M) RPF C C  = ( ) ( ) ( ) ( ) ( ) ( ) 2 2 N 2 2 95(M) CV 1 ln 0.5 CV 1 ln z EXP CV 1 ln 0.5 CV 1 ln 1.645 EXP RPF + − + + − + = 81 Table I-1 lists RPF95(M) values for vales of N from 1 to 9, where CV is assumed to be 0.6. Table I-1. RPF 95(M) and zN Values for N<10 N zN RPF95(M) 1 -1.645 6.199 2 -0.760 3.795 3 -0.336 3.000 4 -0.068 2.585 5 0.124 2.324 6 0.272 2.141 7 0.390 2.006 8 0.489 1.898 9 0.574 1.811 (II) BACKGROUND (CB). (A) Numerical criteria for toxic substances: As described in OAC 252:606-6-11 and 14, CB is the background concentration representative of low stream flow (7Q2) conditions. (B) Human health and raw water criteria. As described in OAC 252:606-6-11 and 15, CB is the long-term background concentration representative of average stream flow conditions, and is expressed as a geometric mean. (C) Agriculture criteria. As described in OAC 252:606-6-11 and 16, if site-specific mineral constituent background data is used (as opposed to the historical YMS and SS criteria in Appendix F of OAC 252:730), CB is calculated as the arithmetic average of the site-specific background data distribution. If historical YMS and SS data from Appendix F of OAC 252:730 are used, CB is calculated according to Equation I-11. [I-11] (SS) B (YMS) B B C C 2 C −  = 82 APPENDIX J. WHOLE EFFLUENT TOXICITY (WET) TESTING CRITICAL DILUTIONS AND DILUTION SERIES [NEW] The narrative toxicity criterion is implemented according to procedures in OAC 252:740 and OAC 252:606-6-17 through 6-43. Critical dilutions are expressed in terms of percent effluent. Both types of WET testing require that test organisms be subjected to a series of effluent dilutions based on the critical dilution. Tables J-1 and J-2 reflect the 0.75 dilution series to be used for each percent critical dilution. For WET testing purposes, Qe is the design flow for a municipal POTW or the highest monthly average flow over the most recent two-year period of record for an industrial facility. Qu is the higher of the 7Q2 or 1cfs. Q* = Qe/Qu. (1) Acute WET testing critical dilution. The ACD is 100%. (2) Chronic WET testing critical dilution for streams. Equations for calculating the CCD are as follows: , where Q*  0.1823. [J-1] , where 0.1823 < Q* < 0.3333. [J-2] , where Q*  0.3333. [J-3] Q*) (1 * Q 1.94 100 CCD +  = *) 51 . 15 17 .6 ( 1 100 CCD Q −  = 100 CCD = 83 Table J-1. 0.75 Dilution Series for Critical Dilutions from 10% through 75% Percent Effluent Dilution 1 Dilution 2 Dilution 3 Dilution 4 (Critical Dil) Dilution 5 Dilution 6 4.2 5.6 7.5 10 13 --- 4.6 6.2 8.3 11 15 --- 5.1 6.8 9.0 12 16 --- 5.6 7.5 10 13 17 --- 5.9 7.9 11 14 19 --- 6.3 8.4 11 15 20 --- 6.8 9.0 12 16 21 --- 7.2 9.6 13 17 23 --- 7.6 10 14 18 24 --- 8.0 11 14 19 25 --- 8.4 11 15 20 27 --- 9.0 12 16 21 28 --- 9.3 12 17 22 29 --- 9.7 13 17 23 31 --- 10 14 18 24 32 --- 11 14 19 25 33 --- 11 15 20 26 35 --- 11 15 20 27 36 --- 12 16 21 28 37 --- 12 16 22 29 39 --- 13 17 23 30 40 --- 13 17 23 31 41 --- 14 18 24 32 43 --- 14 19 25 33 44 --- 14 19 26 34 45 --- 15 20 26 35 47 --- 15 20 27 36 48 --- 16 21 28 37 49 --- 16 21 29 38 51 --- 16 22 29 39 52 --- 17 23 30 40 53 --- 17 23 31 41 55 --- 18 24 32 42 56 --- 18 24 32 43 57 --- 19 25 33 44 59 --- 19 25 34 45 60 --- 19 26 35 46 61 --- 20 26 35 47 63 --- 20 27 36 48 64 --- 84 Table J-1 (continued). 0.75 Dilution Series for Critical Dilutions from 10% through 75% Percent Effluent Dilution 1 Dilution 2 Dilution 3 Dilution 4 (Critical Dil) Dilution 5 Dilution 6 21 28 37 49 65 --- 21 28 38 50 67 --- 22 29 38 51 68 --- 22 29 39 52 69 --- 22 30 40 53 71 --- 23 30 41 54 72 --- 23 31 41 55 73 --- 24 32 42 56 75 --- 24 32 43 57 76 --- 24 33 44 58 77 --- 25 33 44 59 79 --- 25 34 45 60 80 --- 26 34 46 61 81 --- 26 35 47 62 83 --- 27 35 47 63 84 --- 27 36 48 64 85 --- 27 37 49 65 87 --- 28 37 50 66 88 --- 28 38 50 67 89 --- 29 38 51 68 91 --- 29 39 52 69 92 --- 30 39 53 70 93 --- 30 40 53 71 95 --- 30 41 54 72 96 --- 31 41 55 73 97 --- 31 42 56 74 99 --- 32 42 56 75 100 --- 85 Table J-2. 0.75 Dilution Series for Critical Dilutions Above 75% Percent Effluent Dilution 1 Dilution 2 Dilution 3 Dilution 4 Dilution 5 (Critical Dil) Dilution 6 24 32 43 57 76 100 24 32 43 58 77 100 25 33 44 59 78 100 25 33 44 59 79 100 25 34 45 60 80 100 26 34 46 61 81 100 26 35 46 62 82 100 26 35 47 62 83 100 27 35 47 63 84 100 27 36 48 64 85 100 27 36 48 65 86 100 28 37 49 65 87 100 28 37 50 66 88 100 28 38 50 67 89 100 28 38 51 68 90 100 29 38 51 68 91 100 29 39 52 69 92 100 29 39 52 70 93 100 30 40 53 71 94 100 30 40 53 71 95 100 30 41 54 72 96 --- 31 41 55 73 97 --- 31 41 55 74 98 --- 31 42 56 74 99 --- 32 42 56 75 100 --- 86 APPENDIX K. EQUATIONS FOR IMPLEMENTATION OF TEMPERATURE CRITERIA TO PROTECT THE FISH AND WILDLIFE PROPAGATION BENEFICIAL USE [NEW] (1) General. The temperature criterion is implemented according to procedures in OAC 252:740 and OAC 252:606-6-44 through 6-50. Wasteload allocation, criterion long term average and permit limit development equations are described in this appendix. (2) Reasonable potential. See OAC 252:740. (3) WLAT. Trout fisheries by definition require a WLAT of 20 oC (see OAC 252:606-6-53). Other than for trout fisheries, if Tmax > 2.8 oC, a WLA is required. (A) Streams. , where Q*  0.1823. [K-1] , where 0.1823 < Q* < 0.3333. [K-2] , where Q*  0.3333. [K-3] (B) Lakes. , where the discharge is by pipe. [K-4] , where the discharge is by canal. [K-5] (4) LTAT (50% probability basis). [K-6] * Q Q*) 1( 1.44 T WLA a T + + = * Q 43.428 17.276 T WLA a T − + = 2.8 T WLA a T + = D 56.42 T WLA a T + = W 11.76 T WLA a T + =                 +  = 7 CV 1 ln 0.5 EXP WLA LTA 2 T T 87 (5) Permit limitations. (A) MALT (95% probability basis). [K-7] If calculated MALT exceeds 52 oC, it is capped at 52 oC for antidegradation purposes. (B) WALT (95% probability basis). [K-8] LTAT Factor (50% Probability Basis) LTAT = WLAT x LTAT Factor 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Effluent Temperature Coefficient of Variation (CV) LTAT Factor                 + −         +  = m 2 m 2 T T N CV 1 ln 0.5 N CV 1 ln 1.645 EXP LTA MAL                 + −         +  = w 2 w 2 T T N CV 1 ln 0.5 N CV 1 ln 1.645 EXP LTA WAL 88 If calculated WALT exceeds 52 oC, it is capped at 52 oC for antidegradation purposes. (C) DMLT If a daily maximum limit is required for thermal antidegradation purposes, then DMLT = 52 oC. Figure K-2. Temperature MAL and WAL Permit Limit Factors vs. Per Week Monitoring Frequency Nw MALT and WALT Factors MALT = LTAT x MALT Factor (95% Probability Basis) WALT = LTAT x WALT Factor (95% Probability Basis) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 1 2 3 4 5 6 7 Per Week Monitoring Frequency Nw (measurements/week) Permit Limit Factor MAL: CV=0.2 MAL: CV=0.6 MAL: CV=1.0 WAL: CV=0.2 WAL: CV=0.6 WAL: CV=1.0 89 APPENDIX L. EQUATIONS FOR IMPLEMENTATION OF NUMERICAL CRITERIA FOR TOXIC SUBSTANCES TO PROTECT THE FISH AND WILDLIFE PROPAGATION BENEFICIAL USE [NEW] (1) General. Acute and chronic toxicity numerical criteria are implemented according to OAC 252:740 and OAC 252:606-6-51 through 6-57. WLA, criterion LTA and permit limit development equations are described in this appendix. (2) Reasonable potential for discharges to streams. See OAC 252:740. (3) Reasonable potential for discharge to lakes. See OAC 252:740. (4) WLAA and WLAC for discharges to streams. (A) Acute criteria WLA. , where Qe is expressed in cfs. [L-1] , where Qe is expressed in MGD. [L-2] (B) Chronic criteria WLA. , where Q*  0.1823. [L-3] , where 0.1823 < Q* < 0.3333. [L-4] , where Q*  0.3333. [L-5] (5) WLAA and WLAC for discharges to lakes. The chronic WLA is calculated if a chronic criterion applies. An acute WLA is used only in the absence of a chronic criterion. , where the discharge is by pipe. [L-6] , where the discharge is by canal. [L-7] e B A B A Q ) C - (C 100 C WLA + = e B A B A Q ) C - (C 64.63 C WLA + = Q*) 94 . (1 ) C - (C Q*) (1 C WLA B C B C + + = ) C (C Q*) 15.51 (6.17 C WLA B C B C − − + = C C C WLA = D ) C - (C 20.15 C WLA B A C, B A C, + = W ) C (C 4.2 C WLA B A C, B A C, − + = 90 (6) LTAA and LTAC (99% probability basis). Whether the receiving water is a stream or lake, criterion LTAs are calculated in the same fashion. LTATOX is the more stringent of the two toxicity LTAs. [L-8] [L-9] Figure L-1. Aquatic Toxicity LTA Factors vs. Effluent Coefficient of Variation (7) Permit limitations. (A) MALTOX (95% probability basis). ( ) ( )     + − +  = 2 2 A A CV 1 ln 2.326 CV 1 ln 0.5 EXP WLA LTA                 + −         +  = 4 CV 1 ln 2.326 4 CV 1 ln 0.5 EXP WLA LTA 2 2 C C LTAA and LTAC Factors (99% Probability Basis) LTAA = WLAA x LTAA Factor LTAC = WLAC x LTAC Factor 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Effluent Concentration Coefficient of Variation (CV) LTA Factor Acute Criterion LTA Chronic Criterion LTA 91 [L-10] (B) DMLTOX (99% probability basis). [L-11] Figure L-2. Toxicity-Based MAL and DML Permit Limit Factors vs. Per Month Monitoring Frequency Nm                 + −         +  = m 2 m 2 TOX TOX N CV 1 ln 0.5 N CV 1 ln 1.645 EXP LTA MAL ( ) ( )    + − +  = 2 2 TOX TOX CV 1 ln 0.5 CV 1 ln 2.326 EXP LTA DML MALTOX and DMLTOX Factors MALTOX = LTATOX x MALTOX Factor (95% Probability Basis) DMLTOX = LTATOX x DMLTOX Factor (99% Probability Basis) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Per Month Monitoring Frequency N (samples/month) Permit Limit Factor MAL: CV=0.2 MAL: CV=0.6 MAL: CV=1.0 DML: CV=0.2 DML: CV=0.6 DML: CV=1.0 92 APPENDIX M. EQUATIONS FOR IMPLEMENTATION OF NUMERICAL HUMAN HEALTH AND RAW WATER CRITERIA TO PROTECT THE FISH CONSUMPTION AND PUBLIC AND PRIVATE WATER SUPPLY BENEFICIAL USES [NEW] (1) General. Human health numerical criteria (for consumption of fish flesh and consumption of fish flesh and water) and raw water column criteria are implemented according to OAC 252:740 and OAC 252:606-6-64 through 6-77. Wasteload allocation, criterion long-term average and permit limit development equations are described in this appendix. (2) Reasonable potential. See OAC 252:740. (3) WLAFF, WLAFFW and WLARAW. [M-1] [M-2] [M-3] (4) LTAFF, LTAFFW and LTARAW. [M-4] [M-5] [M-6] (5) Permit Limitations. MALs and DMLs are calculated for the human health/fish flesh, human health/fish flesh and water, and raw water column criteria according to the following equations, where "HH" is used as the common descriptor for all three criteria. (A) MALHH. [M-7] * Q ) C (C C WLA B FF FF FF − + = * Q ) C (C C WLA B FFW FFW FFW − + = * Q ) C (C C WLA B RAW RAW RAW − + = FF FF WLA LTA = FFW FFW WLA LTA = RAW RAW WLA LTA = HH HH LTA MAL = 93 (B) DMLHH (99% probability basis). [M-8] Figure M-1. Human Health-Based MAL and DML Permit Limit Factors vs. Per Month Monitoring Frequency Nm                         + −         + + − +  = m 2 m 2 2 2 HH HH N CV 1 ln 0.5 N CV 1 ln 1.645 ) CV (1 ln 0.5 ) CV (1 ln 2.326 EXP LTA DML MALHH and DMLHH Factors MALHH = LTAHH = WLAHH DMLHH = LTAHH x DMLHH Factor (99% Probability Basis) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Per Month Monitoring Frequency Nm (samples/month) Permit Limit Factor MAL: CV=0.2 MAL: CV=0.6 MAL: CV=1.0 DML: CV=0.2 DML: CV=0.6 DML: CV=1.0 94 APPENDIX N. EQUATIONS FOR IMPLEMENTATION OF NUMERICAL CRITERIA TO PROTECT THE AGRICULTURE BENEFICIAL USE [NEW] (1) General. Agriculture use YMS and SS numerical criteria are implemented according to OAC 252:740 and OAC 252:606-6-79 through 6-85. Wasteload allocation, criterion long term average and permit limit development equations are described in this appendix. (2) Reasonable potential. See OAC 252:740. (3) WLAYMS and WLASS. [N-1] [N-2] (4) LTAYMS and LTASS for mineral constituents [N-3] [N-4] (5) LTACL, LTASO4, and LTATDS. for chlorides. [N-5] for sulfates. [N-6] for total dissolved solids. [N-7] * Q ) C (C C WLA B YMS YMS YMS − + = * Q ) C (C C WLA B SS SS SS − + = YMS YMS WLA LTA =                 + −         +  = 4 CV 1 ln 2.326 4 CV 1 ln 0.5 EXP WLA LTA 2 2 SS SS ( ) SS YMS CL LTA , LTA MIN LTA = ( ) SS YMS SO4 LTA , LTA MIN LTA = ( ) SS YMS TDS LTA , LTA MIN LTA = 95 Figure N-1. Agriculture Criteria LTA Factors vs. Effluent Coefficient of Variation (6) Permit Limitations. The more stringent of the YMS and SS LTAs for each mineral constituent is used to develop water quality-based permit limitations for that substance. OAC 252:730 requires that the long-term average mineral constituent concentrations used to develop permit limitations be not less than 700 mg/L for TDS and not less than 250 mg/L for chlorides and sulfates. The following permit limit development equations account for this minimum LTA requirement. (A) MALCL, MALSO4, and MALTDS (95% probability basis). [N-8] Agriculture YMS and SS Criterion LTA Factors LTAYMS = WLAYMS LTASS = WLASS x LTASS Factor (99% Probability Basis) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Effluent Mineral Concentration Coefficient of Variation (CV) LTA Factor YMS Criterion LTA Factor SS Criterion LTA Factor                 + −         +  = m 2 m 2 CL CL N CV 1 ln 0.5 N CV 1 ln 1.645 EXP ) LTA (250, MAX MAL 96 [N-9] [N-10] (B) DMLCL, DMLSO4, and DMLTDS (95% probability basis). [N-11] [N-12] [N-13] Figure N-2. Agriculture MAL and DML Permit Limit Factors vs. Per Month Monitoring Frequency Nm                 + −         +  = m 2 m 2 SO4 SO4 N CV 1 ln 0.5 N CV 1 ln 1.645 EXP ) LTA (250, MAX MAL              + −      +  = m 2 m 2 TDS TDS N CV 1 ln 0.5 N CV 1 ln 1.645 EXP ) LTA (700, MAX MAL ( ) ( )    + − +  = 2 2 CL CL CV 1 ln 0.5 CV 1 ln 1.645 EXP ) LTA (250, MAX DML ( ) ( )    + − +  = 2 2 SO4 SO4 CV 1 ln 0.5 CV 1 ln 1.645 EXP ) LTA (250, MAX DML ( ) ( )    + − +  = 2 2 TDS TDS CV 1 ln 0.5 CV 1 ln 1.645 EXP ) LTA (700, MAX DML MALAG and DMLAG Factors MALAG = LTAAG x MALAG Factor (95% Probability Basis) DMLAG = LTAAG x DMLAG Factor (95% Probability Basis) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Per Month Monitoring Frequency Nm (samples/month) Permit Limit Factor MAL: CV=0.2 MAL: CV=0.6 MAL: CV=1.0 DML: CV=0.2 DML: CV=0.6 DML: CV=1.0 97 APPENDIX O. PERFORMANCE-BASED EFFLUENT MONITORING FREQUENCY REDUCTIONS AND INCREASES [NEW] If a permit contains a monthly average mass loading limit, but not a monthly average concentration limit, the equivalent monthly average concentration limit may be derived from the monthly average mass loading limit and the flow basis (the high 30-day average flow during the previous permit cycle for industrial facilities and the design flow for municipal facilities). Table O-1. Performance Based Monitoring Frequency Reductions (No Permit Violations During The Previous Permit Cycle)* Baseline Monitoring Frequency (previous permit cycle) Ratio (Percent) of Long-term Average Effluent Concentration for The Previous Permit Cycle to Monthly Average Concentration Limit a < 25% 25% and <50% 50% and <65% 65% and <75% 75% 7/week and daily 2/week 3/week 4/week 5/week 6/week 6/week 2/week 3/week 3/week 4/week 5/week 5/week 1/week 2/week 3/week 4/week 4/week 4/week 1/week 2/week 2/week 3/week NR 3/week 1/week 2/week 2/week NR NR 2/week 2/month 1/week 1/week NR NR 1/week 1/month 2/month NR NR NR 2/month 1/month NR NR NR NR 1/month NR NR NR NR NR 1/2 months NR NR NR NR NR a NR means "no reduction." * The frequency reductions stated in Table O-2 do not affect the need to conduct control tests and do not affect the number of control tests to be conducted. See OAC 252:606-6-91. 98 Table O-2. Monitoring Frequency Increases Baseline Monitoring Frequency (previous permit cycle) Increased Monitoring Frequency for parameters demonstrating a violation during the previous permit cycle a 7/week and daily NI 6/week 7/week 5/week 7/week 4/week 6/week 3/week 5/week 2/week 4/week 1/week 3/week 2/month 2/week 1/month 1/week 1/2 months (every other month) 2/month 1/3 months (once per quarter) 1/month 1/6 months (semi-annually) 1/month 1/year 1/month a NI means "no increase" 99 APPENDIX P. BACKGROUND MONITORING [NEW] Background monitoring is unnecessary if a BT/C ratio is < 1.0. The maximum BT/C ratio for which background monitoring is required, which decreases as the value of the associated criterion increases, is expressed by Equations P-1, P-2 and P-3. BT/Cmax = 1.0, where the criterion is ≤ 1.0 µg/L [P-1] BT/Cmax = , where the criterion > 1.0 µg/L and ≤ 1000µg/L [P-2] BT/Cmax = 0.125, where the criterion is > 1000 µg/L [P-3] (i) Acute Toxicity Criteria BT/CAcute = , where Qe(30) < 64.63 MGD [P-4] BT/CAcute = is not defined for values of Qe(30) ≥ 64.63 MGD (ii) Chronic Toxicity Criteria For discharges to streams, the following equations are used for values of Q* < 0.3333: BT/CChronic = , where Q* ≤ 0.1823 [P-5] BT/CChronic = , where 0.1823 < Q* < 0.3333 [P-6] BT/CChronic is not defined for Q* ≥ 0.3333 (i.e., for effluent-dominated discharge situations), since CB drops out as a component of the chronic toxicity reasonable potential equation at that point. (iii)Human Health/Fish Flesh Criteria BT/CFF = [P-7] ( ) 1 95 + − Q C Q C C FF FF * * ( ) 6 17 1551 517 1551 95 . . * . . * − − −       Q C C Q C C C ( ) 1 1 94 1 0 94 95 + − −       Q C Q C Q C C C * . * . * 64 63 64 63 30 95 30 . . ( ) ( ) C Q C Q C A e e A − −     1 2 log( ) criterion 100 iv) Raw Water Column Criteria BTC/CRaw = [P-8] (v) Human Health/Fish Flesh and Water Criteria BT/CFFW = [P-9] ( ) 1 95 + − Q C Q C C FFW FFW * * ( ) 1 95 + − Q C Q C C RAW RAW * *