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University Of Maryland College Park, Department of Environmental Safety

Colleges And Universities, College Park, Maryland. NPDES permit MD0063801, in force until Nov 30, 2028. Last 12 months: over a limit 189 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 002 form A quarterly (26 values), outfall 003 form A quarterly (26 values), outfall 004 form A quarterly (26 values), outfall 005 form A quarterly (26 values), outfall 007 form A quarterly (26 values), outfall 012 form A quarterly (26 values), and 5 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
123 values over a limit, 0 required values missing, 0 of 110 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 189 values over a limit
Period endingOutfallParameterReportedLimitOver by
October 2025002Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025002Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
October 2025003Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025003Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
October 2025004Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025005Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025005Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
October 2025007Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025007Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
October 2025012Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025012Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
October 2025016Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025016Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
October 2025019Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025019Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
October 2025029Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025029Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
October 2025033Copper, total [as Cu], daily maximum.052 mg/L≤ .0403 mg/L29%
October 2025033Copper, total [as Cu], monthly average.052 mg/L≤ .0279 mg/L86%
November 2025002Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
November 2025003Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
November 2025005Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
November 2025007Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
November 2025012Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
November 2025014Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
November 2025016Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
November 2025029Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
November 2025033Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
December 2025002Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025003Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025003pH, maximum8.55 SU≤ 8.5 SU—
December 2025004pH, maximum8.53 SU≤ 8.5 SU—
December 2025005Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025007Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025012Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025014Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025016Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025019Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025029Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
December 2025033Copper, total [as Cu], monthly average.039 mg/L≤ .0279 mg/L40%
January 2026002Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026002Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
January 2026003Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026003Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
January 2026004Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026005Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026005Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
January 2026007Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026007Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
January 2026012Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026012Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
January 2026016Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026016Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
January 2026019Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026019Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
January 2026029Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026029Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
January 2026033Copper, total [as Cu], daily maximum.075 mg/L≤ .0403 mg/L86%
January 2026033Copper, total [as Cu], monthly average.075 mg/L≤ .0279 mg/L169%
February 2026002Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026002Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026003Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026003Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026004Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026005Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026005Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026007Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026007Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026012Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026012Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026014Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026014Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026016Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026016Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026019Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026019Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026029Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026029Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
February 2026033Copper, total [as Cu], daily maximum.067 mg/L≤ .0403 mg/L66%
February 2026033Copper, total [as Cu], monthly average.067 mg/L≤ .0279 mg/L140%
March 2026002Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026002Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026003Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026003Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026004Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026005Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026005Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026007Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026007Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026012Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026012Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026014Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026014Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026016Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026016Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026019Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026019Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026029Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026029Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
March 2026033Copper, total [as Cu], daily maximum.069 mg/L≤ .0403 mg/L71%
March 2026033Copper, total [as Cu], monthly average.069 mg/L≤ .0279 mg/L147%
April 2026002Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026002Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
April 2026003Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026003Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
April 2026004Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026005Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026005Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
April 2026007Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026007Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
April 2026012Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026012Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
April 2026016Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026016Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
April 2026019Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026019Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
April 2026029Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026029Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
April 2026033Copper, total [as Cu], daily maximum.053 mg/L≤ .0403 mg/L32%
April 2026033Copper, total [as Cu], monthly average.053 mg/L≤ .0279 mg/L90%
May 2026002Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026002Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
May 2026003Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026003Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
May 2026004Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026005Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026005Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
May 2026007Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026007Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
May 2026012Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026012Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
May 2026016Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026016Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
May 2026019Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026019Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
May 2026029Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026029Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
May 2026033Copper, total [as Cu], daily maximum.047 mg/L≤ .0403 mg/L17%
May 2026033Copper, total [as Cu], monthly average.047 mg/L≤ .0279 mg/L68%
June 2026002Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026002Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
June 2026003Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026003Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
June 2026004Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026005Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026005Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
June 2026007Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026007Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
June 2026012Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026012Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
June 2026016Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026016Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
June 2026019Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026019Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
June 2026029Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026029Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
June 2026033Copper, total [as Cu], daily maximum.049 mg/L≤ .0403 mg/L22%
June 2026033Copper, total [as Cu], monthly average.049 mg/L≤ .0279 mg/L76%
July 2026002Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026002Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026003Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026003Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026004Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026005Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026005Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026007Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026007Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026012Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026012Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026014Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026014Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026016Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026016Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026019Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026019Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026029Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026029Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
July 2026033Copper, total [as Cu], daily maximum.05 mg/L≤ .0403 mg/L24%
July 2026033Copper, total [as Cu], monthly average.05 mg/L≤ .0279 mg/L79%
August 2026002Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
August 2026003Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
August 2026005Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
August 2026007Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
August 2026012Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
August 2026016Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
August 2026016Temp. diff. between up/down stream deg. F, daily maximum10 deg F≤ 0 deg F—
August 2026019Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
August 2026029Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%
August 2026033Copper, total [as Cu], monthly average.031 mg/L≤ .0279 mg/L11%

Limits in force (308)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year002
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year002
pHminimum≥ 6.5 SUall year002
pHminimum≥ 6.5 SUall year002
pHmaximum≤ 8.5 SUall year002
pHmaximum≤ 8.5 SUall year002
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year002
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year002
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year002
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year002
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year002
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year002
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year002
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year002
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year002
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year002
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year002
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug002
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year002
Chlorine, total residualmonthly average< .1 mg/Lall year002
Chlorine, total residualmonthly average< .1 mg/Lall year002
Chlorine, total residualdaily maximum< .1 mg/Lall year002
Chlorine, total residualdaily maximum< .1 mg/Lall year002
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year003
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year003
pHminimum≥ 6.5 SUall year003
pHminimum≥ 6.5 SUall year003
pHmaximum≤ 8.5 SUall year003
pHmaximum≤ 8.5 SUall year003
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year003
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year003
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year003
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year003
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year003
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year003
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year003
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year003
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year003
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year003
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year003
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year003
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug003
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug003
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year003
Chlorine, total residualmonthly average< .1 mg/Lall year003
Chlorine, total residualmonthly average< .1 mg/Lall year003
Chlorine, total residualdaily maximum< .1 mg/Lall year003
Chlorine, total residualdaily maximum< .1 mg/Lall year003
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year004
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year004
pHminimum≥ 6.5 SUall year004
pHminimum≥ 6.5 SUall year004
pHmaximum≤ 8.5 SUall year004
pHmaximum≤ 8.5 SUall year004
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year004
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year004
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year004
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year004
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year004
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year004
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year004
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year004
Copper, total [as Cu]monthly average≤ .079 mg/Lall year004
Copper, total [as Cu]monthly average≤ .079 mg/Lall year004
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year004
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year004
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug004
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug004
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year004
Chlorine, total residualmonthly average< .1 mg/Lall year004
Chlorine, total residualmonthly average< .1 mg/Lall year004
Chlorine, total residualdaily maximum< .1 mg/Lall year004
Chlorine, total residualdaily maximum< .1 mg/Lall year004
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year005
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year005
pHminimum≥ 6.5 SUall year005
pHminimum≥ 6.5 SUall year005
pHmaximum≤ 8.5 SUall year005
pHmaximum≤ 8.5 SUall year005
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year005
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year005
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year005
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year005
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year005
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year005
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year005
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year005
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year005
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year005
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year005
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year005
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug005
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug005
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year005
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year005
Chlorine, total residualmonthly average< .1 mg/Lall year005
Chlorine, total residualmonthly average< .1 mg/Lall year005
Chlorine, total residualdaily maximum< .1 mg/Lall year005
Chlorine, total residualdaily maximum< .1 mg/Lall year005
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year007
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year007
pHminimum≥ 6.5 SUall year007
pHminimum≥ 6.5 SUall year007
pHmaximum≤ 8.5 SUall year007
pHmaximum≤ 8.5 SUall year007
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year007
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year007
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year007
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year007
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year007
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year007
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year007
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year007
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year007
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year007
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year007
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year007
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug007
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug007
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year007
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year007
Chlorine, total residualmonthly average< .1 mg/Lall year007
Chlorine, total residualmonthly average< .1 mg/Lall year007
Chlorine, total residualdaily maximum< .1 mg/Lall year007
Chlorine, total residualdaily maximum< .1 mg/Lall year007
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year012
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year012
pHminimum≥ 6.5 SUall year012
pHminimum≥ 6.5 SUall year012
pHmaximum≤ 8.5 SUall year012
pHmaximum≤ 8.5 SUall year012
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year012
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year012
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year012
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year012
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year012
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year012
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year012
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year012
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year012
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year012
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year012
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year012
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug012
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug012
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year012
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year012
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year012
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year012
Chlorine, total residualmonthly average< .1 mg/Lall year012
Chlorine, total residualmonthly average< .1 mg/Lall year012
Chlorine, total residualdaily maximum< .1 mg/Lall year012
Chlorine, total residualdaily maximum< .1 mg/Lall year012
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year014
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year014
pHminimum≥ 6.5 SUall year014
pHminimum≥ 6.5 SUall year014
pHmaximum≤ 8.5 SUall year014
pHmaximum≤ 8.5 SUall year014
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year014
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year014
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year014
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year014
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year014
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year014
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year014
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year014
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year014
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year014
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year014
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year014
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug014
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug014
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year014
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year014
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year014
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year014
Chlorine, total residualmonthly average< .1 mg/Lall year014
Chlorine, total residualmonthly average< .1 mg/Lall year014
Chlorine, total residualdaily maximum< .1 mg/Lall year014
Chlorine, total residualdaily maximum< .1 mg/Lall year014
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year016
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year016
pHminimum≥ 6.5 SUall year016
pHminimum≥ 6.5 SUall year016
pHmaximum≤ 8.5 SUall year016
pHmaximum≤ 8.5 SUall year016
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year016
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year016
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year016
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year016
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year016
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year016
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year016
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year016
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year016
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year016
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year016
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year016
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug016
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug016
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year016
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year016
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year016
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year016
Chlorine, total residualmonthly average< .1 mg/Lall year016
Chlorine, total residualmonthly average< .1 mg/Lall year016
Chlorine, total residualdaily maximum< .1 mg/Lall year016
Chlorine, total residualdaily maximum< .1 mg/Lall year016
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year019
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year019
pHminimum≥ 6.5 SUall year019
pHminimum≥ 6.5 SUall year019
pHmaximum≤ 8.5 SUall year019
pHmaximum≤ 8.5 SUall year019
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year019
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year019
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year019
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year019
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year019
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year019
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year019
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year019
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year019
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year019
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year019
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year019
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug019
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug019
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year019
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year019
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year019
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year019
Chlorine, total residualmonthly average< .1 mg/Lall year019
Chlorine, total residualmonthly average< .1 mg/Lall year019
Chlorine, total residualdaily maximum< .1 mg/Lall year019
Chlorine, total residualdaily maximum< .1 mg/Lall year019
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year029
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year029
pHminimum≥ 6.5 SUall year029
pHminimum≥ 6.5 SUall year029
pHmaximum≤ 8.5 SUall year029
pHmaximum≤ 8.5 SUall year029
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year029
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year029
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year029
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year029
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year029
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year029
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year029
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year029
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year029
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year029
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year029
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year029
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug029
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug029
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year029
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year029
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year029
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year029
Chlorine, total residualmonthly average< .1 mg/Lall year029
Chlorine, total residualmonthly average< .1 mg/Lall year029
Chlorine, total residualdaily maximum< .1 mg/Lall year029
Chlorine, total residualdaily maximum< .1 mg/Lall year029
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year033
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year033
pHminimum≥ 6.5 SUall year033
pHminimum≥ 6.5 SUall year033
pHmaximum≤ 8.5 SUall year033
pHmaximum≤ 8.5 SUall year033
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year033
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year033
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year033
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year033
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year033
Copper, dissolved [as Cu]monthly averagereport only (mg/L)all year033
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year033
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year033
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year033
Copper, total [as Cu]monthly average≤ .0279 mg/Lall year033
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year033
Copper, total [as Cu]daily maximum≤ .0403 mg/Lall year033
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug033
Temp. diff. between up/down stream deg. Fdaily maximum≤ 0 deg FJun–Aug033
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year033
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year033
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year033
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year033
Chlorine, total residualmonthly average< .1 mg/Lall year033
Chlorine, total residualmonthly average< .1 mg/Lall year033
Chlorine, total residualdaily maximum< .1 mg/Lall year033
Chlorine, total residualdaily maximum< .1 mg/Lall year033

How strict are these limits?

Cited limits by parameter: Maryland's rules and the federal ones.

Same industry: the 20 Educational Services permits in Maryland.

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Your permit document is the final word. As JSON: /api/v1/permits/MD0063801 · MCP: https://passage-data.com/mcp