Town of Harvard, MA Discharge Requirements, Prohibitions and Restrictions

No person shall discharge or cause or allow to be discharged, directly or indirectly, into the Wastewater Management System any of the following:

Fuel oil, crude oil, lubricating oil, or any other oils or greases of hydrocarbon or petroleum origin in excess of 15 milligrams per liter.

Any liquid, solid, or gas, including, but not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides and methyl ethyl ketone, which by reason of its nature or quantity is or may be sufficient, either alone or by interaction with other substances, to create a fire or explosion hazard or to be otherwise injurious to the Wastewater Management System, or to receiving waters, including:

(1)

Wastewater with a closed cup flashpoint of less than 140° F.(60° C.) using the test methods specified in 40 CFR 261.21, and measured at the point of indirect discharge to the Wastewater Management System, or at such other place as the Commission determines; or

(2)

Any pollutant which exceeds 10% of the lower explosive limit as measured by an explosimeter at the point of discharge to the sewer or at any point within the sewer.

Solids or viscous substances (such as, but not limited to, sand, mud, metal, glass, wood, paper, plastics, rags, rubber, latex, and lime or other slurries, garbage, bones, hair, human parts, hides or fleshings, animal guts or tissues, feathers, ashes, cinders, stone or marble dust, straw, shavings, grass clippings, spent grains, spent hops, tar, asphalt residues, residues from refining or processing fuel or lubricating oil, grease, or glass grinding or polishing wastes) in quantities or of such size as to be capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the Wastewater Management System.

Any noxious or malodorous liquids, gases or solids, which either singly or by interaction with other wastes are capable of creating a public nuisance or hazard to life, or of preventing safe entry into sewers for purposes of inspection, maintenance or repair.

Any waters or wastes containing strong acid iron pickling wastes or concentrated plating solutions, whether neutralized or not.

Sludges or deposited solids resulting from an industrial or pretreatment process.

Substances causing noticeable discoloration or turbidity.

Liquids or vapors having a temperature higher than 150° F. or 65° C., unless an alternative temperature limit is approved, in writing, by the Commission.

Any garbage containing particles larger than 1/2 inch (1.27 centimeters) in any dimension or particles which will not be carried freely in the Wastewater Management System.

Waters or wastes having a pH lower than 5.5 or higher than 10.5, or having any other corrosive or injurious properties capable of causing damage or hazard to structures, equipment, people or the Wastewater Management System. Excursions from these limits are permitted for facilities that continuously monitor pH, subject to limitations established by the in its Sewer Use Regulations, 360 CMR 10.000.

Mercury, polychlorinated biphenyls (PCBs), phenanthrene or pesticides, including, but not limited to, dieldrin, chlordane, 1,1,1-Trichloro-2,2-bis (p-chlorophenyl)-ethane (4-4 DDT), demeton, endosulfan I, endosulfan II, endrin, guthion, heptachlor, malathion, methoxychlor, mirex, parathion, acrolein, aldrin, TDE, DDE, hexachlorocyclohexane, lindane, benzene-cishexachloride and benzene-trans-hexachloride (BHC), hexachlorocyclopentadiene and toxaphene.

Waters or wastes containing amounts of metal or other materials in quantities which violate the System's groundwater discharge permit, including but not limited to: antimony, arsenic, boron, cadmium, chromium (VI) (hexavalent), copper, cyanide, lead, nickel, selenium, silver, zinc, chromium, chlorinated naphthalenes, fluoranthene, hexachlorobutadiene, pentachlorophenol, phenol, phenolic compounds (the following hydroxyl derivatives of benzene: 2-chlorophenol; 2,4-dichlorophenol; 2,4-dimethylphenol; 4,6-dinitro-o-cresol; 2,4-dinitrophenol; 2-nitrophenol; 4-nitrophenol; p-chloro-m-cresol; and 2,4,6-trichlorophenol), toxic organics (each toxic organic not limited elsewhere in these Regulations): 1.0 total toxic organics 5.0 trichloroethylene.

Waters or wastes containing amounts of toxic or objectionable metals and nonmetals in excess of limits contained in federal or state regulations or in a groundwater discharge permit.

Radioactive wastes or isotopes of such half-life or concentrations as may exceed limits established by federal or state regulations.

Total suspended solids or dissolved solids of a type or concentration which would inhibit flow in the Wastewater Management System.

Materials which exert a biochemical oxygen demand in excess of 400 milligrams per liter or a chemical oxygen demand in excess of 1,000 milligrams per liter or a chlorine demand in excess of limits established by the Commission.

Waters or wastes containing fats, wax, grease, or oils of vegetable or animal origin in excess of 100 milligrams per liter or containing other substances which may solidify or become viscous at temperatures between 32° and 150° F. (0° to 65° C.). Waters or wastes containing such substances (excluding normal household waste) shall exclude all visible floatable oils fats and greases. The use of chemical, biological or physical means (such as temperature variation, solvents, enzymes, emulsifying agents, mechanical mixers) to bypass or release fats, waxes, oils or greases into the Wastewater Management System is prohibited. Subject to the written approval of the Commission, a chemical or biological agent may be added to convert the fats, wax, oil, and grease in a trap to a substance not regulated by these Regulations if the resulting discharge from the trap will not cause or contribute to an obstruction or blockage in the sewer or otherwise violate these regulations. Unless so converted, the fats, wax, oil, and grease contents of a grease trap shall not be discharged to the Wastewater Management System. If the discharge concentration for any fats, oils or grease exceeds 100 milligrams per liter after treatment, the Commission may, in its discretion, increase the discharge concentration limit on a case by case basis and apply a monetary charge for the increase.

Any substances containing pathogenic organisms in such quantities as determined by local, state or federal law as hazardous to the public health or the environment, including but not limited to biological waste, hospital or medical wastes, and related used equipment and supplies.

Hazardous waste or wastewater which has come in contact with hazardous waste.

Waste or wastewater discharged through a bypass, unless such discharge through the bypass was approved in writing advance by the Commission, or the discharge through the bypass is allowed by 40 CFR 403.17 and the person using the bypass has provided the required notices to the Commission in a timely manner.

Any filter backwash not specifically authorized to be discharged by a permit issued to the discharger by the Commission, any filter backwash that is not treated to meet the limits and prohibitions established by the Commission, or any filter backwash which causes or contributes to a violation of these Regulations.

Any trucked or hauled pollutants.

Any water or wastewater, not otherwise governed by these Regulations, containing pollutants at levels which may adversely affect the Commission's ability to process or dispose of its wastewater residuals in an environmentally sound and economic manner in accordance with applicable state and federal requirements.