Section Env-Wq 1203.12 - Prohibited Discharges(a) No person shall discharge, or cause or allow to be discharged, to the POTW any stormwater or other surface water, groundwater, roof run-off, sub-surface drainage, uncontaminated cooling water, or unpolluted industrial process waters.(b) No person shall discharge, or cause or allow to be discharged, any substances, materials, waters, or wastes to the POTW that could:(1) Damage the POTW or any equipment or other appurtenances associated with the POTW;(2) Pass through or interfere with the operation or performance of the WRBP treatment plant;(3) Cause the WRBP to violate either Env-Wq 1703 or its NPDES permit;(4) Have an adverse effect on the receiving stream;(5) Endanger the health and welfare of the WRBP staff; or(6) Otherwise endanger public health, safety, or property or constitute a nuisance.(c) Examples of discharges prohibited by (b), above, shall include the following: (1) Any gasoline, benzene, naptha, fuel, oil, or other flammable or explosive liquid, solid, or gas;(2) Any industrial wastes, including oxygen-demanding wastes, at any flow rate or concentration or combination thereof that would:a.Cause interference with the POTW;b.Constitute a hazard to humans or animals;c.Create a public nuisance; ord.Exceed any applicable national categorical pretreatment standard or local limit;(3) Any waters or wastes having a pH lower than 5.5 or higher than 12.0 or having any other corrosive property capable of causing damage or hazard to structural components, equipment, or personnel of the POTW;(4) 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 sewer system such as, but not limited to: s.Paper dishes, cups, or milk containers;(5) Any liquid or vapor having a temperature higher than 150°F, or otherwise sufficiently hot to cause damage to the POTW or to cause the influent at the WRBP treatment plant headworks to exceed 104°F or cause inhibition of biological activity in the treatment plant;(6) Any water or wastes containing fats, wax, grease, or oils, whether or not emulsified, in excess of 250 milligrams per liter (mg/L) for animal/vegetable origin and 50 mg/L for petroleum oil, nonbiodegradable oils, and products of mineral origin;(7) Any waters or wastes containing heavy metals, solvents, or toxic substances to such degree that any such material discharged to the public sewer exceeds the limits established by the community, the department, or the EPA for such materials pursuant to requirements in 40 CFR 403;(8) Any pollutant exceeding the local limits for maximum daily concentration specified in Table 1201-1 below: Table 1201-1 - Local Limits
| Pollutant | Maximum Daily Concentration (mg/L) |
| Aluminum | 125 |
| Arsenic | 0.23 |
| Cadmium | 0.03 |
| Chloride | 9100 |
| Chromium | 3.30 |
| Copper | 1.40 |
| Cyanide | 0.45 |
| Iron | 25.0 |
| Lead | 0.85 |
| Manganese | 5.00 |
| Mercury | 0.025 |
| Molybdenum | 0.38 |
| Nickel | 1.00 |
| Selenium | 0.18 |
| Silver | 0.40 |
| Zinc | 5.85 |
(9) Any discharge of pollutants exceeding the fume toxicity screening limits in accordance with 40 CFR 403.5(b);(10) Any medical/infectious waste, pharmaceutical waste, or radiological waste except as specifically authorized in a discharge permit;(11) Any slurry solutions of suspended or dissolved inert materials;(12) Any solutions of dissolved inert materials, such as, but not limited to: (13) Any materials that exert or cause: a.Discoloration such as is caused by dye wastes and vegetable tanning solutions;b.BOD, chemical oxygen demand, or chlorine requirements in such quantities as to constitute an impact on the WRBP treatment plant;c.A volume of flow or concentration of wastes or both constituting a slug discharge; or(14) Waters or wastes containing substances that are not amenable to treatment or reduction by the sewage treatment processes employed, or are amenable to treatment only to such degree that the WRBP treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over the WRBP treatment plant's discharge to receiving waters;(15) Garbage that has not been properly shredded;(16) Waters or wastes that, by interaction with other water or wastes in the POTW: a.Release dangerous or noxious gases;b.Form suspended solids that interfere with the operation of the collection system; orc.Create a condition deleterious to structures and treatment processes; or(17) Any hazardous waste listed or designated by the department under Env-Hw 400. (d) No person shall meet or attempt to meet requirements of these sewer rules by diluting wastes.(e) The WRBP and the community shall, through applicable legal processes, set limitations lower than the limitations established in (c)(8), above, if more stringent limitations are necessary to meet applicable federal and state laws.N.H. Code Admin. R. Env-Wq 1203.12
#9798-A, eff 10-9-10 (from Env-Wq 1203.09)
Amended by Volume XXXIX Number 16, Filed April 18, 2019, Proposed by #12739, Effective 3/19/2019, Expires 3/19/2029.