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Town of Pittsville Commissioners

Sewerage Systems, Pittsville, Maryland. NPDES permit MD0060348, in force until Mar 31, 2031. Last 12 months: over a limit 6 times (last June 2026), 11 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (32 values), outfall 101 form A yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 7 of 12 reports late

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

Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], maximum monthly average14.2 mg/L≤ 7.2 mg/L97%
December 2025Nitrogen, ammonia total [as N], maximum monthly average9.6 lb/d≤ 6.9 lb/d39%
June 2026BOD, 5-day, 20 deg. C, maximum monthly average14 mg/L≤ 7 mg/L100%
June 2026BOD, 5-day, 20 deg. C, maximum monthly average8 lb/d≤ 6.7 lb/d19%
June 2026BOD, 5-day, 20 deg. C, maximum weekly average19 lb/d≤ 10 lb/d90%
June 2026BOD, 5-day, 20 deg. C, maximum weekly average32 mg/L≤ 11 mg/L191%

Limits in force (44)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 7 mg/LMay–Sep001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 30 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 11 mg/LMay–Sep001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 6.7 lb/dMay–Sep001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 29 lb/dJan, Feb, Mar, Apr, Oct, Nov, Dec001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 10 lb/dMay–Sep001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 43 lb/dJan, Feb, Mar, Apr, Oct, Nov, Dec001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmaximum monthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Solids, total suspendedmaximum monthly average≤ 29 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 43 lb/dall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]cumulative totalreport only (lb/yr)all year001
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]maximum monthly average≤ 7.2 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)May–Sep001
Nitrogen, ammonia total [as N]maximum monthly average≤ 6.9 lb/dJan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]maximum monthly average≤ 3 mg/LMay–Sep001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 4.5 mg/LMay–Sep001
Nitrogen, Kjeldahl, total [as N]maximum monthly average≤ 2.9 lb/dMay–Sep001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 4.3 lb/dMay–Sep001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]cumulative totalreport only (lb/yr)all year001
Phosphorus, total [as P]monthly totalreport only (lb/mo)all year001
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmaximum< .1 mg/Lall year001
E. colimaximum monthly geometric mean≤ 126 MPN/100mLall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Flow, totaltotalreport only (Mgal/mo)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101

New limits from Oct 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, ammonia total [as N], maximum monthly average1.3 lb/d (May–Sep)tighter——
Nitrogen, ammonia total [as N], maximum monthly average1.4 mg/L (May–Sep)tighter——
Nitrogen, ammonia total [as N], maximum daily average5.4 lb/d (May–Sep)tighter——
Nitrogen, ammonia total [as N], maximum daily average5.6 mg/L (May–Sep)tighter——

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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