[Amended 6-26-2024 by Bylaw Amendment 24-909]
A.
No person may introduce into the facility any pollutant(s) which cause pass-through or interference. These general prohibitions and the specific prohibitions in § 139-3B of these regulations apply to each person introducing pollutants into the facility, whether or not the person is subject to other national pretreatment standards or any national, state or local pretreatment requirements.
B.
Specific discharge prohibitions. Supplementing the provisions of § 139-3A above, and not by way of limitation, the following discharges to the facility are specifically prohibited:
(1)
Ground-, storm- and surface waters, roof runoff, subsurface drainage, uncontaminated cooling water and uncontaminated industrial process waters. These discharges shall be made only to such sewers as are specifically designated by the Director as storm sewers or to a natural outlet, as may be permitted under an applicable NPDES permit.
(2)
Any liquids, solids or gases which by reason of their nature or quantity are or may be sufficient either alone or by interaction with other substances to create a fire or explosion hazard or be injurious in any other way to the facility or to the operation of the facility. Pollutants which create a fire or explosion hazard include but are not limited to waste streams with a closed-cup flashpoint of less than 140° F. or 60° C. using the test methods specified in 40 CFR 261.21. Prohibited materials include but are not limited to gasoline, kerosene, naphtha, benzene, fuel oil, crude oil, lubricating oils, any other oils or greases of hydrocarbon or petroleum origin, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides and sulfides and any other substances which the District, the Division or the EPA has notified the person is a fire hazard or a hazard to the system.
(3)
Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers or other interference with the proper operation of the facility, such as but not limited to grease, garbage with particles greater than 1/2 inch in any dimension, animal guts or tissues, paunch, manure, bones, hair, hides or fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dust, metal, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, wastepaper, wood, plastics, rubber, tar, asphalt residues, residues from refining or processing of fuel or lubricating oil, mud or glass grinding or polishing wastes.
(4)
Any wastewater having a pH less than 5.0 or wastewater having any other corrosive property capable of causing damage or hazard to structures, equipment and/or personnel of the facility.
(5)
Any wastewater containing toxic or objectionable pollutants in sufficient quantity or concentration, either singly or by interaction with other pollutants, to injure or interfere with any wastewater treatment process, to constitute a hazard to humans or animals, to create a toxic effect in the receiving waters of the facility or to exceed the limitations set forth in a national categorical pretreatment standard, the local discharge limitations prescribed herein at § 139-3E or an industrial discharge permit issued pursuant to these regulations. A toxic pollutant shall include but not be limited to any pollutant identified pursuant to Section 307(a) of the Act listed at 40 CFR Part 403, App. B.
(6)
Any substances which result in the presence of toxic gases, vapors or fumes within the facility in a quantity that may cause acute worker health and safety problems.
(7)
Any substance which may cause the facility's effluent or any other product of the facility, such as residues, sludges or scums, to be unsuitable for disposal in a permitted landfill or for reclamation and reuse or to interfere with the reclamation and reuse or to interfere with the reclamation process. In no case shall a substance discharged to the facility cause the facility to be in noncompliance with sludge use or disposal criteria, guidelines or regulations developed under Section 405 of the Act; or with any criteria, guidelines or regulations affecting sludge use or disposal developed pursuant to the Solid Waste Disposal Act, the Clean Air Act or state criteria applicable to the sludge management method being used.
(8)
Any pollutants, including oxygen-demanding pollutants (BOD, etc.) released in a discharge at a flow rate and/or pollutant concentration which will cause interference to the facility.
(10)
Any wastewater with objectionable color not removed in the treatment process, such as but not limited to dye wastes and vegetable tanning solutions.
(11)
Any wastewater having a temperature which will inhibit biological activity in the facility resulting in interference, but in no case wastewater with a temperature at the introduction into the facility which exceeds 40° C (104° F), unless the Division, upon request of the District, approves alternate temperature limits.
(12)
Any wastewater containing any radioactive wastes or isotopes of such half-life or concentration as may exceed limits necessary to comply with applicable state or federal regulations.
(13)
Any sludges or deposited solids resulting from an industrial pretreatment process.
(14)
Petroleum oil, nonbiodegradable cutting oil or products of mineral oil origin in amounts that will cause interference or pass-through.
(15)
Any trucked or hauled pollutants, except at discharge points designated by the Director.
C.
National categorical pretreatment standards. Upon the promulgation of national categorical pretreatment standards for a particular industrial subcategory, the pretreatment standard, if more stringent than limitations imposed under these regulations, shall immediately supersede, for industrial users in that subcategory, the limitations imposed under these regulations. The Director shall notify all affected industrial users of the applicable requirements under the Act; 314 C.M.R. §§ 2.00, 7.00 and 12.00; and subtitles C and D of the Resource Conservation and Recovery Act.
D.
Modification of national categorical pretreatment standards. Pursuant to 40 CFR § 403.7, where the facility achieves consistent removal of pollutants limited by a national categorical pretreatment standard, the District may apply to the Division for modification of the discharge limits for a specific pollutant covered in the relevant national categorical pretreatment standards in order to reflect the facility's ability to remove said pollutant. The District may modify pollutant discharge limits contained in a national categorical pretreatment standard only if the requirements of 40 CFR § 403.7 are fulfilled and prior approval from the Division is obtained.
E.
Local discharge limitations. No person shall discharge wastewater containing any pollutant specified in Schedule A,[1] annexed hereto and incorporated herein by reference, in excess of the limitations for each of said pollutants as specified in said Schedule A. Compliance with the provisions of this § 139-3E shall be assessed on the basis of samples of the person's wastewater discharge collected at each point of connection between the person's building, structure, facility or installation and the District's sewerage system. If a national categorical pretreatment standard establishes limitations for industrial users in a particular industrial subcategory which are more stringent than the limitations specified in Schedule A, those more stringent limitations shall immediately apply to those users subject to that national categorical pretreatment standard. Compliance with national categorical pretreatment standard limitations shall be assessed in accordance with the requirements set forth at 40 CFR § 403.12(b)(5).
[1]
Editor's Note: Schedule A can be found at the end of this chapter.
F.
State requirements. Requirements and limitations on discharges set by the Massachusetts Department of Environmental Protection (DEP) shall apply in any case where they are more stringent than federal requirements and limitations or those contained in these regulations.
G.
Required amendment of regulations. The Town shall establish by amendment to these regulations more stringent limitations or requirements on discharges to the facility in order to be and remain at least as stringent as the discharge limitations or requirements contained in the Charles River Pollution Control District Sewer Use Regulations, as the same may be amended from time to time.
H.
Dilution prohibited in absence of treatment. Except where expressly authorized to do so by an applicable national categorical pretreatment standard or requirement, no user shall ever increase the use of process water or in any other way attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance either with the limitations contained in any national pretreatment standard or requirement.
I.
Industrial user pretreatment. Each industrial user shall provide necessary wastewater treatment as required to comply with these regulations, including the local discharge limitations set forth in Schedule A hereto, and shall achieve compliance with all applicable national categorical pretreatment standards within the time limitations specified by said standards. Any facilities required to pretreat wastewater to a level which will achieve compliance with these regulations shall be provided, operated and maintained at the industrial user's expense. Detailed plans showing the pretreatment facilities and operating procedures shall be submitted to the Director for review and shall be acceptable to the Director before construction of the facility. The review of such plans and operating procedures will in no way relieve the industrial user from the responsibility of modifying the facility as necessary to produce an effluent which complies with the provisions of these regulations. Any subsequent changes in the pretreatment facilities or method of operation shall be reported to and be acceptable to the Director prior to the industrial user's initiation of the changes. All records relating to compliance with applicable pretreatment standards and requirements shall be made available to officials of the EPA or Division upon request. In addition, pursuant to the public participation requirements of 40 CFR Part 25, the District shall annually publish in the largest daily newspapers of general circulation in the District a list of the industrial users which, during the preceding 12 months, were in significant noncompliance with applicable pretreatment standards or requirements. For purposes of this provision, an industrial user is in significant noncompliance if its violation meets one or more of the following criteria:
(1)
Chronic violations of wastewater discharge limits, defined here as those in which 66% or more of all measurements taken during a six-month period exceed (by any magnitude) the daily maximum limit or the average limit for the same pollutant parameter;
(2)
Technical review criteria (TRC) violations, defined here as those in which 33% or more of all of the measurements for each pollutant parameter taken during the six-month period equal or exceed the product of the daily maximum limit or the average limit multiplied by the applicable TRC (TRC = 1.4 for BOD, TSS, fats, oil and grease and 1.2 for all other pollutants except pH);
(3)
Any other violation of a pretreatment effluent limit (daily maximum or longer-term average) that the District determines has caused, alone or in combination with other discharges, interference or pass-through (including endangering the health of facility personnel or the general public);
(4)
Any discharge of a pollutant that has caused imminent endangerment to human health, welfare or to the environment or has resulted in the facility's exercise of its emergency authority to halt or prevent such a discharge;
(5)
Failure to meet, within 90 days after the scheduled date, a compliance schedule milestone contained in a local control mechanism or enforcement order for starting construction, completing construction or attaining final compliance;
(6)
Failure to provide, within 30 days after the due date, required reports such as baseline monitoring reports, ninety-day compliance reports, periodic self-monitoring reports and reports on compliance schedules;
(7)
Failure to accurately report noncompliance;
(8)
Any other violation or group of violations which the District determines will adversely affect the operation or implementation of the local pretreatment program.
J.
Industrial user accidental discharges.
(1)
Plans and procedures.
(a)
Each industrial user shall provide protection from accidental discharge of prohibited materials or other substances regulated by these regulations. Facilities to prevent accidental discharge of prohibited materials shall be provided and maintained at the owner or industrial user's own cost and expense. Detailed plans showing facilities and operating procedures to provide this protection shall be submitted to the Director for review and shall be approved by the Director before construction of the facility.
(b)
All existing industrial users shall submit such a plan within 60 days of the effective date of these regulations. No industrial user who commences discharging into the facility after the effective date of these regulations shall be permitted to introduce pollutants into the system until accidental discharge procedures have been approved by the Director. Review and approval of such plans and operating procedures shall not relieve the industrial user from the responsibility to modify the user's facility as necessary to meet the requirements of these regulations.
(c)
In the case of an accidental discharge, it is the responsibility of the industrial user to telephone immediately and notify the Director of the incident. The notification shall include location of discharge, type of waste, concentration and volume and any and all corrective actions.
(2)
Written notice. Within five days following an accidental discharge, the industrial user shall submit to the Director a detailed written report describing the cause of the discharge and the measures which have been and shall be taken by the user to prevent similar future occurrences. Such notification shall not relieve the industrial user of any expense, loss, damage or other liability which may be incurred as a result of damage to the facility, fish kills or any other damage to persons, animals or property; nor shall such notification relieve the industrial user of any fines, civil penalties or other liability which may be imposed by these regulations or other applicable law.
(3)
Notice to employees. A notice shall be permanently posted on the industrial user's bulletin board or other prominent place advising employees whom to call in the event of a dangerous discharge. Employers shall ensure that all employees who may cause or suffer such a dangerous discharge to occur, or who may know or have reason to know thereof, are advised of the emergency notification procedures.
K.
Slug discharge plans. At least once every two years, the Director shall evaluate whether each significant industrial user needs a plan to control slug discharges. The significant industrial user shall comply with the provisions of any such slug control plan which the Director determines to be necessary, including but not limited to:
(1)
A description of discharge practices, including nonroutine batch discharges;
(2)
A description of stored chemicals;
(3)
Procedures for immediately notifying the Director and the DPW Director of slug discharges, including any discharge that would violate a prohibition under 40 CFR § 403.5(b), with procedures for follow-up written notification; and
(4)
If necessary, procedures to prevent adverse impact from accidental spills, including those procedures set forth in 40 CFR § 403.8(f)(2)(v)(D).
L.
Exterior Grease Traps.
(1)
Any new commercial kitchen or food service establishment shall have an exterior grease trap installed on the sewer service line intercepting kitchen flows prior to discharging to the municipal sewer system.
(2)
Any existing Commercial Kitchen or Food Service Establishment facilities shall have an exterior grease trap installed on the sewer service line intercepting kitchen flows prior to discharging to the municipal sewer system whenever there is a change in ownership of the business, or any capital improvements are being made to the food establishment facilities which require a building permit.