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Space Propulsion Units And Parts, Cecil County, Maryland. NPDES permit MD0000078, in force until Jul 31, 2028. Last 12 months: no values over a limit, 12 of 36 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6 SU | all year | 006 |
| pH | minimum | ≥ 6 SU | all year | 006 |
| pH | maximum | ≤ 9 SU | all year | 006 |
| pH | maximum | ≤ 9 SU | all year | 006 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 006 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 006 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 006 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 006 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 006 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 006 |
| pH | minimum | ≥ 6 SU | all year | 007 |
| pH | minimum | ≥ 6 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 007 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 007 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 007 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 007 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 007 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 007 |
| pH | minimum | ≥ 6 SU | all year | 008 |
| pH | minimum | ≥ 6 SU | all year | 008 |
| pH | maximum | ≤ 9 SU | all year | 008 |
| pH | maximum | ≤ 9 SU | all year | 008 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 008 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 008 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 008 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 008 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 008 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 008 |
| pH | minimum | ≥ 6 SU | all year | 009 |
| pH | minimum | ≥ 6 SU | all year | 009 |
| pH | maximum | ≤ 9 SU | all year | 009 |
| pH | maximum | ≤ 9 SU | all year | 009 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 009 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 009 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 009 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 009 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 009 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 009 |
| pH | minimum | ≥ 6 SU | all year | 011 |
| pH | minimum | ≥ 6 SU | all year | 011 |
| pH | maximum | ≤ 9 SU | all year | 011 |
| pH | maximum | ≤ 9 SU | all year | 011 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 011 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 011 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 011 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 011 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/kg | all year | 011 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/kg | all year | 011 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/kg | all year | 011 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/kg | all year | 011 |
| pH | minimum | ≥ 6 SU | all year | 012 |
| pH | minimum | ≥ 6 SU | all year | 012 |
| pH | maximum | ≤ 9 SU | all year | 012 |
| pH | maximum | ≤ 9 SU | all year | 012 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 012 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 012 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 012 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 012 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 012 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 012 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 012 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 012 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 012 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 012 |
| pH | minimum | ≥ 6 SU | all year | 013 |
| pH | minimum | ≥ 6 SU | all year | 013 |
| pH | maximum | ≤ 9 SU | all year | 013 |
| pH | maximum | ≤ 9 SU | all year | 013 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 013 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 013 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 013 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 013 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 013 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 013 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 013 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 013 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 013 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 013 |
| pH | minimum | ≥ 6 SU | all year | 018 |
| pH | minimum | ≥ 6 SU | all year | 018 |
| pH | maximum | ≤ 9 SU | all year | 018 |
| pH | maximum | ≤ 9 SU | all year | 018 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 018 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 018 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 018 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 018 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 018 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 018 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 018 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 018 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 018 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 018 |
| pH | minimum | ≥ 6 SU | all year | 019 |
| pH | minimum | ≥ 6 SU | all year | 019 |
| pH | maximum | ≤ 9 SU | all year | 019 |
| pH | maximum | ≤ 9 SU | all year | 019 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 019 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 019 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 019 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 019 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 019 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 019 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 019 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 019 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 019 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 019 |
| Perchlorate [ClO4] | daily maximum | report only (ug/L) | all year | 019 |
| Perchlorate [ClO4] | daily maximum | report only (ug/L) | all year | 019 |
| Dichlorobromomethane | daily maximum | report only (ug/L) | all year | 021 |
| Dichlorobromomethane | daily maximum | report only (ug/L) | all year | 021 |
| Carbon tetrachloride | daily maximum | ≤ 5 ug/L | all year | 021 |
| Carbon tetrachloride | daily maximum | ≤ 5 ug/L | all year | 021 |
| Bromoform | daily maximum | report only (ug/L) | all year | 021 |
| Bromoform | daily maximum | report only (ug/L) | all year | 021 |
| Dibromochloromethane | daily maximum | report only (ug/L) | all year | 021 |
| Dibromochloromethane | daily maximum | report only (ug/L) | all year | 021 |
| Chloroform | daily maximum | report only (ug/L) | all year | 021 |
| Chloroform | daily maximum | report only (ug/L) | all year | 021 |
| Toluene | daily maximum | report only (ug/L) | all year | 021 |
| Toluene | daily maximum | report only (ug/L) | all year | 021 |
| Benzene | daily maximum | ≤ 5 ug/L | all year | 021 |
| Benzene | daily maximum | ≤ 5 ug/L | all year | 021 |
| Chlorobenzene | daily maximum | report only (ug/L) | all year | 021 |
| Chlorobenzene | daily maximum | report only (ug/L) | all year | 021 |
| Chloroethane, total weight | daily maximum | report only (ug/L) | all year | 021 |
| Chloroethane, total weight | daily maximum | report only (ug/L) | all year | 021 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 021 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 021 |
| Methyl bromide [Bromomethane] | daily maximum | report only (ug/L) | all year | 021 |
| Methyl bromide [Bromomethane] | daily maximum | report only (ug/L) | all year | 021 |
| Methyl chloride [Chloromethane] | daily maximum | report only (ug/L) | all year | 021 |
| Methyl chloride [Chloromethane] | daily maximum | report only (ug/L) | all year | 021 |
| Methylene chloride | daily maximum | report only (ug/L) | all year | 021 |
| Methylene chloride | daily maximum | report only (ug/L) | all year | 021 |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year | 021 |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year | 021 |
| Trichlorofluoromethane | daily maximum | report only (ug/L) | all year | 021 |
| Trichlorofluoromethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,1-Dichloroethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,1-Dichloroethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,1-Dichloroethylene | daily maximum | report only (ug/L) | all year | 021 |
| 1,1-Dichloroethylene | daily maximum | report only (ug/L) | all year | 021 |
| 1,1,1-Trichloroethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,1,1-Trichloroethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,1,2-Trichloroethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,1,2-Trichloroethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,1,2,2-Tetrachloroethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,1,2,2-Tetrachloroethane | daily maximum | report only (ug/L) | all year | 021 |
| 1,2-Dichloroethane, total weight | daily maximum | report only (ug/L) | all year | 021 |
| 1,2-Dichloroethane, total weight | daily maximum | report only (ug/L) | all year | 021 |
| 1,2-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 021 |
| 1,2-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 021 |
| 1,2-Dichloropropane | daily maximum | report only (ug/L) | all year | 021 |
| 1,2-Dichloropropane | daily maximum | report only (ug/L) | all year | 021 |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | 021 |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | 021 |
| 1,3-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 021 |
| 1,3-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 021 |
| 1,4-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 021 |
| 1,4-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 021 |
| 2-Chloroethyl vinyl ether, [mixed] | daily maximum | report only (ug/L) | all year | 021 |
| 2-Chloroethyl vinyl ether, [mixed] | daily maximum | report only (ug/L) | all year | 021 |
| trans-1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | 021 |
| trans-1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | 021 |
| cis-1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | 021 |
| cis-1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | 021 |
| Vinyl chloride | daily maximum | ≤ 2 ug/L | all year | 021 |
| Vinyl chloride | daily maximum | ≤ 2 ug/L | all year | 021 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 021 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 021 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 021 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 021 |
| 1,1-Dichloroethene | daily maximum | ≤ 7 ug/L | all year | 021 |
| 1,1-Dichloroethene | daily maximum | ≤ 7 ug/L | all year | 021 |
| Perchlorate [ClO4] | daily maximum | report only (ug/L) | all year | 021 |
| Perchlorate [ClO4] | daily maximum | report only (ug/L) | all year | 021 |
| Trichloroethene | daily maximum | ≤ 5 ug/L | all year | 021 |
| Trichloroethene | daily maximum | ≤ 5 ug/L | all year | 021 |
| Volatile hydrocarbons | daily maximum | ≤ 100 ug/L | all year | 021 |
| Volatile hydrocarbons | daily maximum | ≤ 100 ug/L | all year | 021 |
| Dichlorobromomethane | daily maximum | report only (ug/L) | all year | 022 |
| Dichlorobromomethane | daily maximum | report only (ug/L) | all year | 022 |
| Carbon tetrachloride | daily maximum | ≤ 5 ug/L | all year | 022 |
| Carbon tetrachloride | daily maximum | ≤ 5 ug/L | all year | 022 |
| Bromoform | daily maximum | report only (ug/L) | all year | 022 |
| Bromoform | daily maximum | report only (ug/L) | all year | 022 |
| Dibromochloromethane | daily maximum | report only (ug/L) | all year | 022 |
| Dibromochloromethane | daily maximum | report only (ug/L) | all year | 022 |
| Chloroform | daily maximum | report only (ug/L) | all year | 022 |
| Chloroform | daily maximum | report only (ug/L) | all year | 022 |
| Toluene | daily maximum | report only (ug/L) | all year | 022 |
| Toluene | daily maximum | report only (ug/L) | all year | 022 |
| Benzene | daily maximum | ≤ 5 ug/L | all year | 022 |
| Benzene | daily maximum | ≤ 5 ug/L | all year | 022 |
| Chlorobenzene | daily maximum | report only (ug/L) | all year | 022 |
| Chlorobenzene | daily maximum | report only (ug/L) | all year | 022 |
| Chloroethane, total weight | daily maximum | report only (ug/L) | all year | 022 |
| Chloroethane, total weight | daily maximum | report only (ug/L) | all year | 022 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 022 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 022 |
| Methyl bromide [Bromomethane] | daily maximum | report only (ug/L) | all year | 022 |
| Methyl bromide [Bromomethane] | daily maximum | report only (ug/L) | all year | 022 |
| Methyl chloride [Chloromethane] | daily maximum | report only (ug/L) | all year | 022 |
| Methyl chloride [Chloromethane] | daily maximum | report only (ug/L) | all year | 022 |
| Methylene chloride | daily maximum | report only (ug/L) | all year | 022 |
| Methylene chloride | daily maximum | report only (ug/L) | all year | 022 |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year | 022 |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year | 022 |
| Trichlorofluoromethane | daily maximum | report only (ug/L) | all year | 022 |
| Trichlorofluoromethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,1-Dichloroethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,1-Dichloroethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,1-Dichloroethylene | daily maximum | report only (ug/L) | all year | 022 |
| 1,1-Dichloroethylene | daily maximum | report only (ug/L) | all year | 022 |
| 1,1,1-Trichloroethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,1,1-Trichloroethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,1,2-Trichloroethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,1,2-Trichloroethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,1,2,2-Tetrachloroethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,1,2,2-Tetrachloroethane | daily maximum | report only (ug/L) | all year | 022 |
| 1,2-Dichloroethane, total weight | daily maximum | report only (ug/L) | all year | 022 |
| 1,2-Dichloroethane, total weight | daily maximum | report only (ug/L) | all year | 022 |
| 1,2-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 022 |
| 1,2-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 022 |
| 1,2-Dichloropropane | daily maximum | report only (ug/L) | all year | 022 |
| 1,2-Dichloropropane | daily maximum | report only (ug/L) | all year | 022 |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | 022 |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | 022 |
| 1,3-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 022 |
| 1,3-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 022 |
| 1,4-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 022 |
| 1,4-Dichlorobenzene | daily maximum | report only (ug/L) | all year | 022 |
| 2-Chloroethyl vinyl ether, [mixed] | daily maximum | report only (ug/L) | all year | 022 |
| 2-Chloroethyl vinyl ether, [mixed] | daily maximum | report only (ug/L) | all year | 022 |
| trans-1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | 022 |
| trans-1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | 022 |
| cis-1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | 022 |
| cis-1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | 022 |
| Vinyl chloride | daily maximum | ≤ 2 ug/L | all year | 022 |
| Vinyl chloride | daily maximum | ≤ 2 ug/L | all year | 022 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 022 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 022 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 022 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 022 |
| 1,1-Dichloroethene | daily maximum | ≤ 7 ug/L | all year | 022 |
| 1,1-Dichloroethene | daily maximum | ≤ 7 ug/L | all year | 022 |
| Trichloroethene | daily maximum | ≤ 5 ug/L | all year | 022 |
| Trichloroethene | daily maximum | ≤ 5 ug/L | all year | 022 |
| Volatile hydrocarbons | daily maximum | ≤ 100 ug/L | all year | 022 |
| Volatile hydrocarbons | daily maximum | ≤ 100 ug/L | all year | 022 |
| pH | minimum | ≥ 6 SU | all year | 023 |
| pH | minimum | ≥ 6 SU | all year | 023 |
| pH | maximum | ≤ 9 SU | all year | 023 |
| pH | maximum | ≤ 9 SU | all year | 023 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 023 |
| Temp. diff. between up/down stream deg. F | daily maximum | ≤ 0 deg F | all year | 023 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 023 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 023 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 023 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 023 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 023 |
| Chlorine, total residual | maximum monthly average | ≤ 11 ug/L | all year | 023 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 023 |
| Chlorine, total residual | daily maximum | ≤ 19 ug/L | all year | 023 |
Cited limits by parameter: Maryland's rules and the federal ones.
Same industry: the 3 Transportation Equipment permits in Maryland.
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