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Airports, Flying Fields, & Services, Boston, Massachusetts. NPDES permit MA0000787, in force until Oct 31, 2028. Last 12 months: over a limit 6 times (last August 2026), 6 required values missing, 8 of 196 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| February 2026 | 01A | Solids, total suspended, daily maximum | 130 mg/L | ≤ 100 mg/L | 30% |
| February 2026 | 03A | Oil & Grease, daily maximum | 50 mg/L | ≤ 15 mg/L | 233% |
| March 2026 | 05A | Solids, total suspended, daily maximum | 260 mg/L | ≤ 100 mg/L | 160% |
| April 2026 | 04A | Solids, total suspended, daily maximum | 160 mg/L | ≤ 100 mg/L | 60% |
| May 2026 | 03A | pH, maximum | 9.43 SU | ≤ 8.5 SU | — |
| August 2026 | 04A | Solids, total suspended, daily maximum | 130 mg/L | ≤ 100 mg/L | 30% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Mar, Jul, Oct | 01A |
| Flow rate | monthly average | report only (MGD) | all year | 01A |
| Flow rate | daily maximum | report only (MGD) | all year | 01A |
| pH | minimum | ≥ 6 SU | all year | 01A |
| pH | maximum | ≤ 8.5 SU | all year | 01A |
| pH | daily maximum | report only (SU) | Jan, Mar, Jul, Oct | 01A |
| pH | maximum | report only (SU) | Jan, Mar, Jul, Oct | 01A |
| Salinity | daily maximum | report only (ppt) | Jan, Mar, Jul, Oct | 01A |
| Salinity | daily maximum | report only (ppt) | Jan, Mar, Jul, Oct | 01A |
| Solids, total | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 01A |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 01A |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 01A |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 01A |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 01A |
| Ammonia, unionized | daily maximum | report only (ug/L) | Jan, Mar, Jul, Oct | 01A |
| Ammonia, unionized | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 01A |
| Polynuclear Aromatic Hydrocarbons [PAHs] | total | report only (ug/L) | all year | 01A |
| Benzene | monthly average | report only (ug/L) | all year | 01A |
| Benzene | daily maximum | report only (ug/L) | all year | 01A |
| Benzo[b]fluoranthene | daily maximum | report only (ug/L) | all year | 01A |
| Benzo[k]fluoranthene | daily maximum | report only (ug/L) | all year | 01A |
| Benzo[a]pyrene | daily maximum | report only (ug/L) | all year | 01A |
| Chrysene | daily maximum | report only (ug/L) | all year | 01A |
| Indeno[1,2,3-cd]pyrene | daily maximum | report only (ug/L) | all year | 01A |
| Benzo[a]anthracene | daily maximum | report only (ug/L) | all year | 01A |
| Dibenz[a,h]anthracene | daily maximum | report only (ug/L) | all year | 01A |
| Naphthalene | daily maximum | report only (ug/L) | all year | 01A |
| Surfactants [MBAS] | monthly average | report only (mg/L) | all year | 01A |
| Surfactants [MBAS] | daily maximum | report only (mg/L) | all year | 01A |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year | 01A |
| Perfluoroheptanoic acid (PFHpA) | daily maximum | report only (ng/L) | all year | 01A |
| Perfluorononanoic acid (PFNA) | daily maximum | report only (ng/L) | all year | 01A |
| Perfluorodecanoic acid (PFDA) | daily maximum | report only (ng/L) | all year | 01A |
| Perfluorohexanesulfonic acid (PFHxS) | daily maximum | report only (ng/L) | all year | 01A |
| Perfluorooctanesulfonic acid (PFOS) | daily maximum | report only (ng/L) | all year | 01A |
| Enterococci | monthly geometric mean | report only (CFU/100mL) | all year | 01A |
| Enterococci | daily maximum | report only (CFU/100mL) | all year | 01A |
| Coliform, fecal general | monthly geometric mean | report only (CFU/100mL) | all year | 01A |
| Coliform, fecal general | daily maximum | report only (CFU/100mL) | all year | 01A |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 01A |
| LC50 Static 48Hr Acute Menidia | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 01A |
| NOAEL Static 48Hr Acute Menidia sp. | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 01A |
| NOAEL Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 01A |
| Flow rate | daily maximum | report only (MGD) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year | 01B |
| Nonylphenol | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| Perfluoroheptanoic acid (PFHpA) | daily maximum | report only (ng/L) | all year | 01B |
| Perfluorononanoic acid (PFNA) | daily maximum | report only (ng/L) | all year | 01B |
| Perfluorodecanoic acid (PFDA) | daily maximum | report only (ng/L) | all year | 01B |
| Perfluorohexanesulfonic acid (PFHxS) | daily maximum | report only (ng/L) | all year | 01B |
| Perfluorooctanesulfonic acid (PFOS) | daily maximum | report only (ng/L) | all year | 01B |
| Propylene glycol, total | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| Chemical Oxygen Demand [COD] | daily maximum | report only (lb/d) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| Tolytriazole | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 01B |
| Flow rate | monthly total | report only (gal/mo) | all year | 01D |
| Flow rate | daily maximum | report only (gal/mo) | all year | 01D |
| pH | monthly total | report only (SU) | all year | 01D |
| pH | daily maximum | report only (SU) | all year | 01D |
| Solids, total suspended | monthly total | report only (mg/L) | all year | 01D |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 01D |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 01D |
| Benzene | monthly total | report only (mg/L) | all year | 01D |
| Benzene | daily maximum | report only (mg/L) | all year | 01D |
| Flow rate | monthly total | report only (gal/mo) | all year | 01E |
| Flow rate | daily maximum | report only (gal/mo) | all year | 01E |
| pH | monthly total | report only (SU) | all year | 01E |
| pH | daily maximum | report only (SU) | all year | 01E |
| Solids, total suspended | monthly total | report only (mg/L) | all year | 01E |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 01E |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 01E |
| Benzene | monthly total | report only (mg/L) | all year | 01E |
| Benzene | daily maximum | report only (mg/L) | all year | 01E |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Mar, Jul, Oct | 02A |
| Flow rate | monthly average | report only (MGD) | all year | 02A |
| Flow rate | daily maximum | report only (MGD) | all year | 02A |
| pH | minimum | ≥ 6 SU | all year | 02A |
| pH | maximum | ≤ 8.5 SU | all year | 02A |
| pH | daily maximum | report only (SU) | Jan, Mar, Jul, Oct | 02A |
| pH | maximum | report only (SU) | Jan, Mar, Jul, Oct | 02A |
| Salinity | daily maximum | report only (ppt) | Jan, Mar, Jul, Oct | 02A |
| Salinity | daily maximum | report only (ppt) | Jan, Mar, Jul, Oct | 02A |
| Solids, total | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 02A |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 02A |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 02A |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 02A |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 02A |
| Ammonia, unionized | daily maximum | report only (ug/L) | Jan, Mar, Jul, Oct | 02A |
| Ammonia, unionized | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 02A |
| Polynuclear Aromatic Hydrocarbons [PAHs] | total | report only (ug/L) | all year | 02A |
| Benzo[b]fluoranthene | daily maximum | report only (ug/L) | all year | 02A |
| Benzo[k]fluoranthene | daily maximum | report only (ug/L) | all year | 02A |
| Benzo[a]pyrene | daily maximum | report only (ug/L) | all year | 02A |
| Chrysene | daily maximum | report only (ug/L) | all year | 02A |
| Indeno[1,2,3-cd]pyrene | daily maximum | report only (ug/L) | all year | 02A |
| Benzo[a]anthracene | daily maximum | report only (ug/L) | all year | 02A |
| Dibenz[a,h]anthracene | daily maximum | report only (ug/L) | all year | 02A |
| Naphthalene | daily maximum | report only (ug/L) | all year | 02A |
| Surfactants [MBAS] | monthly average | report only (mg/L) | all year | 02A |
| Surfactants [MBAS] | daily maximum | report only (mg/L) | all year | 02A |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year | 02A |
| Perfluoroheptanoic acid (PFHpA) | daily maximum | report only (ng/L) | all year | 02A |
| Perfluorononanoic acid (PFNA) | daily maximum | report only (ng/L) | all year | 02A |
| Perfluorodecanoic acid (PFDA) | daily maximum | report only (ng/L) | all year | 02A |
| Perfluorohexanesulfonic acid (PFHxS) | daily maximum | report only (ng/L) | all year | 02A |
| Perfluorooctanesulfonic acid (PFOS) | daily maximum | report only (ng/L) | all year | 02A |
| Enterococci | monthly geometric mean | report only (CFU/100mL) | all year | 02A |
| Enterococci | daily maximum | report only (CFU/100mL) | all year | 02A |
| Coliform, fecal general | monthly geometric mean | report only (MPN/100mL) | all year | 02A |
| Coliform, fecal general | daily maximum | report only (MPN/100mL) | all year | 02A |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 02A |
| LC50 Static 48Hr Acute Menidia | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 02A |
| NOAEL Static 48Hr Acute Menidia sp. | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 02A |
| NOAEL Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 02A |
| Flow rate | daily maximum | report only (MGD) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year | 02B |
| Nonylphenol | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| Perfluoroheptanoic acid (PFHpA) | daily maximum | report only (ng/L) | all year | 02B |
| Perfluorononanoic acid (PFNA) | daily maximum | report only (ng/L) | all year | 02B |
| Perfluorodecanoic acid (PFDA) | daily maximum | report only (ng/L) | all year | 02B |
| Perfluorohexanesulfonic acid (PFHxS) | daily maximum | report only (ng/L) | all year | 02B |
| Perfluorooctanesulfonic acid (PFOS) | daily maximum | report only (ng/L) | all year | 02B |
| Propylene glycol, total | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| Chemical Oxygen Demand [COD] | daily maximum | report only (lb/d) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| Tolytriazole | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 02B |
| Flow rate | monthly average | report only (MGD) | all year | 03A |
| Flow rate | daily maximum | report only (MGD) | all year | 03A |
| pH | minimum | ≥ 6 SU | all year | 03A |
| pH | maximum | ≤ 8.5 SU | all year | 03A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 03A |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 03A |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 03A |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 03A |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 03A |
| Polynuclear Aromatic Hydrocarbons [PAHs] | total | report only (ug/L) | all year | 03A |
| Benzo[b]fluoranthene | daily maximum | report only (ug/L) | all year | 03A |
| Benzo[k]fluoranthene | daily maximum | report only (ug/L) | all year | 03A |
| Benzo[a]pyrene | daily maximum | report only (ug/L) | all year | 03A |
| Chrysene | daily maximum | report only (ug/L) | all year | 03A |
| Indeno[1,2,3-cd]pyrene | daily maximum | report only (ug/L) | all year | 03A |
| Benzo[a]anthracene | daily maximum | report only (ug/L) | all year | 03A |
| Dibenz[a,h]anthracene | daily maximum | report only (ug/L) | all year | 03A |
| Naphthalene | daily maximum | report only (ug/L) | all year | 03A |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year | 03A |
| Perfluoroheptanoic acid (PFHpA) | daily maximum | report only (ng/L) | all year | 03A |
| Perfluorononanoic acid (PFNA) | daily maximum | report only (ng/L) | all year | 03A |
| Perfluorodecanoic acid (PFDA) | daily maximum | report only (ng/L) | all year | 03A |
| Perfluorohexanesulfonic acid (PFHxS) | daily maximum | report only (ng/L) | all year | 03A |
| Perfluorooctanesulfonic acid (PFOS) | daily maximum | report only (ng/L) | all year | 03A |
| Enterococci | monthly geometric mean | report only (CFU/100mL) | all year | 03A |
| Enterococci | daily maximum | report only (CFU/100mL) | all year | 03A |
| Coliform, fecal general | monthly geometric mean | report only (MPN/100mL) | all year | 03A |
| Coliform, fecal general | daily maximum | report only (MPN/100mL) | all year | 03A |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 03B |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 03B |
| Nonylphenol | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 03B |
| Propylene glycol, total | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 03B |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 03B |
| Tolytriazole | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 03B |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Mar, Jul, Oct | 04A |
| Flow rate | monthly average | report only (MGD) | all year | 04A |
| Flow rate | daily maximum | report only (MGD) | all year | 04A |
| pH | minimum | ≥ 6 SU | all year | 04A |
| pH | maximum | ≤ 8.5 SU | all year | 04A |
| pH | daily maximum | report only (SU) | Jan, Mar, Jul, Oct | 04A |
| pH | maximum | report only (SU) | Jan, Mar, Jul, Oct | 04A |
| Salinity | daily maximum | report only (ppt) | Jan, Mar, Jul, Oct | 04A |
| Salinity | daily maximum | report only (ppt) | Jan, Mar, Jul, Oct | 04A |
| Solids, total | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 04A |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 04A |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 04A |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 04A |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 04A |
| Ammonia, unionized | daily maximum | report only (ug/L) | Jan, Mar, Jul, Oct | 04A |
| Ammonia, unionized | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Mar, Jul, Oct | 04A |
| Polynuclear Aromatic Hydrocarbons [PAHs] | total | report only (ug/L) | all year | 04A |
| Benzo[b]fluoranthene | daily maximum | report only (ug/L) | all year | 04A |
| Benzo[k]fluoranthene | daily maximum | report only (ug/L) | all year | 04A |
| Benzo[a]pyrene | daily maximum | report only (ug/L) | all year | 04A |
| Chrysene | daily maximum | report only (ug/L) | all year | 04A |
| Indeno[1,2,3-cd]pyrene | daily maximum | report only (ug/L) | all year | 04A |
| Benzo[a]anthracene | daily maximum | report only (ug/L) | all year | 04A |
| Dibenz[a,h]anthracene | daily maximum | report only (ug/L) | all year | 04A |
| Naphthalene | daily maximum | report only (ug/L) | all year | 04A |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year | 04A |
| Perfluoroheptanoic acid (PFHpA) | daily maximum | report only (ng/L) | all year | 04A |
| Perfluorononanoic acid (PFNA) | daily maximum | report only (ng/L) | all year | 04A |
| Perfluorodecanoic acid (PFDA) | daily maximum | report only (ng/L) | all year | 04A |
| Perfluorohexanesulfonic acid (PFHxS) | daily maximum | report only (ng/L) | all year | 04A |
| Perfluorooctanesulfonic acid (PFOS) | daily maximum | report only (ng/L) | all year | 04A |
| Enterococci | monthly geometric mean | report only (CFU/100mL) | all year | 04A |
| Enterococci | daily maximum | report only (CFU/100mL) | all year | 04A |
| Coliform, fecal general | monthly geometric mean | report only (MPN/100mL) | all year | 04A |
| Coliform, fecal general | daily maximum | report only (MPN/100mL) | all year | 04A |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 04A |
| LC50 Static 48Hr Acute Menidia | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 04A |
| NOAEL Static 48Hr Acute Menidia sp. | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 04A |
| NOAEL Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | Jan, Mar, Jul, Oct | 04A |
| Flow rate | monthly average | report only (MGD) | all year | 05A |
| Flow rate | daily maximum | report only (MGD) | all year | 05A |
| pH | monthly average | report only (SU) | all year | 05A |
| pH | daily maximum | report only (SU) | all year | 05A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 05A |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 05A |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 05A |
| Flow rate | monthly average | report only (MGD) | all year | 06A |
| Flow rate | daily maximum | report only (MGD) | all year | 06A |
| Oxygen, dissolved [DO] | monthly average | report only (mg/L) | Jan, Feb, Mar, Oct, Nov, Dec | 06A |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Oct, Nov, Dec | 06A |
| pH | minimum | report only (SU) | all year | 06A |
| pH | maximum | report only (SU) | all year | 06A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 06A |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 06A |
| Oil & Grease | monthly average | report only (mg/L) | all year | 06A |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 06A |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 06B |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 06B |
| Nonylphenol | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 06B |
| Propylene glycol, total | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 06B |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 06B |
| Tolytriazole | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 06B |
| Flow rate | monthly average | report only (MGD) | all year | 07A |
| Flow rate | daily maximum | report only (MGD) | all year | 07A |
| Oxygen, dissolved [DO] | monthly average | report only (mg/L) | Jan, Feb, Mar, Oct, Nov, Dec | 07A |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Oct, Nov, Dec | 07A |
| pH | minimum | report only (SU) | all year | 07A |
| pH | maximum | report only (SU) | all year | 07A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 07A |
| Solids, total suspended | rolling quarterly | ≤ 100 mg/L | all year | 07A |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 07A |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 07A |
| Oil & Grease | monthly average | report only (mg/L) | all year | 07A |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 07A |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 07B |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 07B |
| Nonylphenol | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 07B |
| Propylene glycol, total | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 07B |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 07B |
| Tolytriazole | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 07B |
| Flow rate | monthly average | report only (MGD) | all year | 08A |
| Flow rate | daily maximum | report only (MGD) | all year | 08A |
| Oxygen, dissolved [DO] | monthly average | report only (mg/L) | Jan, Feb, Mar, Oct, Nov, Dec | 08A |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Oct, Nov, Dec | 08A |
| pH | minimum | report only (SU) | all year | 08A |
| pH | maximum | report only (SU) | all year | 08A |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 08A |
| Solids, total suspended | rolling quarterly | ≤ 100 mg/L | all year | 08A |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 08A |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 08A |
| Oil & Grease | monthly average | report only (mg/L) | all year | 08A |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 08A |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 08B |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 08B |
| Nonylphenol | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 08B |
| Propylene glycol, total | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 08B |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 08B |
| Tolytriazole | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 08B |
Cited limits by parameter: Massachusetts's rules and the federal ones.
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