314 CMR 16.04
Requirements for Public Advisory Notifications
(1) A permittee shall utilize metering to determine or discover when a discharge described in
314 CMR 16.03(1)(a) or (b) occurs at its outfall and requires a public advisory notification,
unless the permittee requests authorization, and receives written approval from the
Commissioner, to utilize another method in accordance with 314 CMR 16.04(2).
(2) The permittee shall apply to the Commissioner for approval of any method other than, or
in addition to metering to determine or discover a discharge described in 314 CMR 16.03(1)(a),
within the timeframes established in 314 CMR 16.04 and in accordance with the process
described in 314 CMR 16.06. The permittee shall apply to the Commissioner for approval of
any method other than, or in addition to metering to determine or discover a discharge described
in 314 CMR 16.03(1)(b), within the timeframes established in 314 CMR 16.04, by submitting
a request to the Department and providing information to support that request. The
Commissioner shall approve the proposed method if the Commissioner determines that the
permittee can obtain reliable information by such method about any discharge from its outfall
and issue public advisory notifications within the timeframes established in 314 CMR 16.04.
If the proposed method or the current discharge detection capabilities of the permittee’s outfall
will not provide timely or reliable information, the Commissioner may extend the time for a
permittee to issue a public advisory notification, provided that such time shall be extended only
as necessary and not more than 24 hours after discovery of the discharge. A permittee that has
been granted an extension shall make necessary improvements to its outfall, system, or
methodology, if any, in the timeframe specified in the Commissioner’s approval, to detect or
discover an outfall discharge within the timeframes established in 314 CMR 16.04. The
Commissioner’s approval of an alternate detection method, or extension of notification
timeframe may be provided within the approval of a CSO Public Notification Plan, in accordance
with 314 CMR 16.06.
(3) A permittee shall establish and maintain a public website to post public advisory
notifications when issued and to receive requests from the public to subscribe to and receive
public advisory notifications by email or text message. When a permittee issues a public
advisory notification, in addition to the information required to be included in the notification
by 314 CMR 16.04(10), the permittee shall include information on its website about any
treatment to disinfect pathogens and remove solids and other pollutants from the discharge or
overflow, and links to websites providing information on the closure or advisory status of
shellfish growing areas, bathing beaches, or other water resource areas potentially affected by
the discharge or overflow.
(4) A permittee required by 314 CMR 16.03 to issue public advisory notifications shall do so
as soon as possible, but no later than two hours, after discovery of a discharge or overflow,
unless the Commissioner has approved in writing a longer time period in accordance with
314 CMR 16.04(2).
(a) The public advisory notification, and any updates required by 314 CMR 16.04(7) and
(8), shall be posted on the permittee's website and issued electronically to: the Department;
the U.S. Environmental Protection Agency; the Massachusetts Department of Public Health;
the municipal board of health or the health department where the outfall or overflow is
located; the board of health or the health department and shellfish constables (if applicable)
for any municipality directly impacted by the discharge or overflow; any person who
subscribed to receive such public advisory notifications by email or text messaging; the
public water supplier(s) where drinking water supplies may be affected; the Massachusetts
Division of Marine Fisheries where shellfish growing areas may be affected; the
Massachusetts Department of Conservation and Recreation when its water recreation
properties may be affected; the Massachusetts Division of Fisheries and Wildlife when its
boat ramps and fishing piers may be affected; and operators of any potentially affected
bathing beaches, as defined in 105 CMR 445.00: Minimum Standards for Bathing Beaches
(State Sanitary Code: Chapter VII).
(b) The public advisory notification, and any updates required by 314 CMR 16.04(7) and
(8), shall also be issued to at least the two largest news organizations that report on local
news in municipalities near the outfall. In municipalities with environmental justice
populations, if neither of the two largest news organizations specifically serves the
environmental justice populations, at least one additional news organization that primarily
serves the environmental justice population(s) within the impacted municipalities must be
notified.
(5) A permittee shall take adequate, appropriate, and timely actions in accordance with the
permittee's approved Public Notification Plan, as applicable, to determine or discover that a
discharge or overflow from its outfall or sewer system is occurring each time the permittee
receives information from a flow meter, model run, or other Commissioner-approved method
for monitoring, detecting, or simulating a discharge or overflow from its outfall or sewer system.
Such actions shall include the following:
(a) CSO Outfalls.
1. For a CSO outfall that is monitored with metering equipment, each time a permittee
receives communication of a potential discharge from the meter deployment, the
permittee shall take all actions set forth in the permittee's Department-approved CSO
Public Notification Plan to confirm the occurrence of a discharge including, without
limitation, review of meter data, site inspection, or other approved methods. In no event
shall a permittee spend longer than two hours to confirm a discharge, commencing from
the time a communication is sent by a meter deployment, if the permittee has operational
staff on site 24 hours per day, seven days per week. In no event shall a permittee spend
longer than four hours to confirm a discharge, commencing from the time a
communication is sent by a meter deployment, if the permittee does not have operational
staff on site 24 hours per day, seven days per week. If a permittee is unable to confirm
that a discharge occurred within the timeframes established in 314 CMR 16.04, it shall
presume that a discharge has been discovered.
2. For a CSO outfall where modeling is used to predict the occurrence of a discharge,
a permittee shall be deemed to have discovered a discharge when results of model
simulations indicate the occurrence of a discharge or when model-developed thresholds
have been triggered for rainfall data, sewer system flow data, or other information that
predicts a potential CSO discharge will occur or is occurring.
3. For a CSO outfall where the Commissioner approves a method other than metering
or modeling for predicting the occurrence of a discharge, the method shall be described
in the CSO Public Notification Plan and implemented as approved by the Department.
(b) SSO Discharge or Overflow. A permittee shall determine or discover the occurrence
of an actual SSO discharge or overflow, or the potential for a SSO discharge or overflow
requiring a public advisory notification described in 314 CMR 16.03(1)(c) through (e) based
on information reasonably available to the permittee, such as a report of a discharge or an
overflow made by any person, site inspection, pump station or level alarms or other relevant
information. In no event shall a permittee take longer than four hours to confirm a potential
SSO discharge or overflow, commencing from the time a permittee initially receives relevant
information. If a permittee is unable to confirm that a potential discharge or overflow
actually occurred within the timeframe established in 314 CMR 16.04, it shall presume that
a discharge or overflow has been discovered.
(c) Partially Treated Wastewater. For any discharge of partially treated wastewater from
a wastewater treatment facility, a permittee shall issue the required public advisory
notification within two hours of the time when the permittee begins diverting a portion of the
flow around a treatment process, or within two hours of the permittee becoming aware of a
failure within the treatment process that is resulting in discharge of partially treated
wastewater.
(6) The Department may allow a permittee with a combined sewer system to issue a combined
public advisory notification, in the manner required by 314 CMR 16.04, when a wet weather
event or other related occurrence involves more than one of the permittee's outfalls discharging
into the same water body or waterway. Permittees shall not issue a combined public advisory
notification except as authorized in a CSO Public Notification Plan approved by the Department.
(7) A permittee shall issue a public advisory notification update eight hours after the initial
public advisory notification is issued. This update:
(a) shall clearly indicate that a discharge or overflow is ongoing or has ceased;
(b) if it has ceased, shall indicate the approximate time of cessation;
(c) shall update any information that has changed since the initial public advisory
notification; and
(d) shall be issued to all parties required to receive notifications under 314 CMR 16.04(4).
If the permittee has reported that the discharge or overflow has ceased at the time of the initial
public advisory notification, then an update is not required eight hours later.
(8) For any event for which public advisory notification is required pursuant to 314 CMR 16.03
and is still ongoing eight hours after the initial public advisory notification is issued, a permittee
shall continue to issue public advisory notification updates every eight hours if the discharge is
still ongoing and shall issue a public advisory notification within two hours after the discharge
or overflow ceases or is projected to cease, to all parties required to receive notifications under
314 CMR 16.04(4), unless the Department requires otherwise. The notice of cessation shall
clearly indicate the approximate time of cessation.
(9) Within 48 hours of issuing a public advisory notification, if the permittee becomes aware
that no discharge or overflow actually occurred, the permittee shall issue a retraction of the
public advisory notification to all parties required to receive notifications under 314 CMR
16.04(4).
(10) A permittee shall include the following information in the public advisory notification,
unless such information is not available despite the permittee's best efforts to obtain the
information prior to issuing the public advisory notification:
(a) Description of discharge or overflow location(s), and outfall number(s), if applicable;
(b) Approximate date and time the discharge or overflow began, and its duration;
(c) Estimated volume of the discharge or overflow based on the average discharge or
overflow from data reported to the Department and/or EPA for the prior three calendar years,
taking into consideration historical information for the projected rainfall event, if possible,
as set forth in the permittee’s CSO Public Notification Plan;
(d) Identity of the permittee;
(e) Whether, at the time of notification, the discharge or overflow has ceased, and if so, the
approximate time and date that the discharge or overflow ended;
(f) Waters and land areas, including names of water bodies and municipalities, affected or
potentially affected by the discharge or overflow;
(g) Precautionary measures to be taken by the public, including the following language:
“Avoid contact with these water bodies for 48 hours after the discharge or overflow ceases
due to increased health risks from bacteria and other pollutants. See website for more
information on whether specific resource areas, such as bathing beaches, are affected.”;
(h) Link to the permittee's website for additional information on discharges and overflows,
and its CSO and/or SSO abatement program(s); and
(i) A statement that the discharge or overflow consists, or likely consists, of untreated or
partially treated sewage and waste.
(11) Public advisory notifications shall be translated into, or provide access to translations in,
other languages, as appropriate, in municipalities that are directly impacted by the discharge or
overflow, and that have neighborhoods identified as environmental justice populations due to
lacking English language proficiency.
(12) Without limitation, public advisory notifications shall be made in accordance with the
requirements of 314 CMR 16.00, approved public notification plans, and other Department
approvals.
(13) Compliance with the notification requirements of 314 CMR 16.00 does not relieve a
permittee of their obligations under 40 CFR 122.41, 314 CMR 3.19: Standard Permit
Conditions, 314 CMR 12.03(8), or other applicable federal and state laws.