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Pharmaceutical Preparations, Groton, Connecticut. NPDES permit CT0000957, in force until Apr 30, 2031. Last 12 months: over a limit 2 times (last December 2025). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Temp. diff. between samp. & upstrm deg. F, instantaneous maximum | 49.8 deg F | ≤ 32.1 deg F | 55% |
| December 2025 | Temperature, water deg. fahrenheit, instantaneous maximum | 92.6 deg F | ≤ 90 deg F | 3% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 90 deg F | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Temp. diff. between samp. & upstrm deg. F | instantaneous maximum | ≤ 32.1 deg F | all year |
| Flow rate | monthly average | ≤ 500000 gal/d | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Specific conductance | daily maximum | report only (umho/cm) | all year |
| Waste heat rejection rate | daily maximum | report only (MBTU/d) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Salinity | daily maximum | report only (g/L) | all year |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 37.8 kg/d | all year |
| Solids, total suspended | daily maximum | ≤ 56.7 kg/d | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Oil & Grease | monthly average | report only (mg/L) | Feb, May, Aug, Nov |
| Oil & Grease | daily maximum | ≤ 5 mg/L | Feb, May, Aug, Nov |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | monthly average | report only (ug/L) | Feb, May, Aug, Nov |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | Feb, May, Aug, Nov |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | monthly average | ≤ 133 ug/L | Feb, May, Aug, Nov |
| Copper, total [as Cu] | daily maximum | ≤ 288 ug/L | Feb, May, Aug, Nov |
| Copper, total [as Cu] | monthly average | ≤ 251 g/d | Feb, May, Aug, Nov |
| Copper, total [as Cu] | daily maximum | ≤ 545 g/d | Feb, May, Aug, Nov |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | Feb, May, Aug, Nov |
| Iron, total [as Fe] | daily maximum | ≤ 5 mg/L | Feb, May, Aug, Nov |
| Iron, total [as Fe] | monthly average | ≤ 5.6 kg/d | Feb, May, Aug, Nov |
| Iron, total [as Fe] | daily maximum | ≤ 9.4 kg/d | Feb, May, Aug, Nov |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | monthly average | report only (ug/L) | Feb, May, Aug, Nov |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | Feb, May, Aug, Nov |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, dissolved [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | monthly average | ≤ 51.4 ug/L | Feb, May, Aug, Nov |
| Nickel, total [as Ni] | daily maximum | ≤ 158 ug/L | Feb, May, Aug, Nov |
| Nickel, total [as Ni] | monthly average | ≤ 97 g/d | Feb, May, Aug, Nov |
| Nickel, total [as Ni] | daily maximum | ≤ 299 g/d | Feb, May, Aug, Nov |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | Feb, May, Aug, Nov |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Feb, May, Aug, Nov |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | monthly average | ≤ 2.2 ug/L | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ 3.2 ug/L | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | monthly average | ≤ 4.2 g/d | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ 6.1 g/d | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Flow, maximum during 24 hr period | daily maximum | ≤ 750000 gal/d | all year |
| Chlorine, total residual | monthly average | report only (ug/L) | Feb, May, Aug, Nov |
| Chlorine, total residual | daily maximum | report only (ug/L) | Feb, May, Aug, Nov |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year |
| Nitrogen, total available [water] | monthly average | ≤ 331 lb/d | Dec |
| Nitrogen, total available [water] | daily maximum | report only (lb/d) | Dec |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| Date of Sample Collection | daily maximum | report only (date) | all year |
| pH, maximum | instantaneous maximum | ≤ 8.5 SU | all year |
| pH, minimum | instantaneous minimum | ≥ 6.8 SU | all year |
| Coliform, fecal general | instantaneous maximum | report only (#/100mL) | Feb, Aug |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Flow | daily maximum | report only (gal/d) | all year |
| Biochemical oxygen demand-5 | monthly average | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| Biochemical oxygen demand-5 | daily maximum | report only (mg/L) | all year |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | minimum | ≥ 100 % | all year |
| LC50 Static 48Hr Acute Cyprinodon variegatus | minimum | ≥ 100 % | all year |
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | minimum | report only (%) | all year |
| NOEC Lethal Static Renewal 7 Day Chronic Cyprinodeon variegatus | minimum | report only (%) | all year |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | minimum | report only (%) | all year |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Cyprinodeon variegatus | minimum | report only (%) | all year |
| %Repro Reduc Static Renewal 7D Americamysis bahia (formerly Mysidopsis bahia) | minimum | report only (%) | all year |
Cited limits by parameter: Connecticut's rules and the federal ones.
Same industry: the 3 Chemicals and Allied Products permits in Connecticut.
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Your permit document is the final word. As JSON: /api/v1/permits/CT0000957 · MCP: https://passage-data.com/mcp