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Chase City Town

Sewage treatment plant, Chase City, Virginia. NPDES permit VA0076881, in force until Dec 31, 2028. Last 12 months: over a limit 2 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (20 values), form S1 twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 14 reports late

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

Period endingParameterReportedLimitOver by
November 2025Solids, total suspended, monthly average21≤ 20 mg/L5%
July 2026E. coli, monthly geometric mean776≤ 126 #/100mL516%

Limits in force (35)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 7 mg/LJan, Feb, Mar, Apr, Dec
Oxygen, dissolved [DO]daily minimum≥ 6 mg/LMay–Nov
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 45 kg/dall year
Solids, total suspendedmaximum weekly average≤ 68 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ .98 mg/LMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 2.5 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.3 mg/LMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 3.4 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, Kjeldahl, total [as N]monthly average≤ 4.2 mg/LMay–Nov
Nitrogen, Kjeldahl, total [as N]monthly average≤ 8.8 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 6.3 mg/LMay–Nov
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 13.2 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, Kjeldahl, total [as N]monthly average≤ 9.5 kg/dMay–Nov
Nitrogen, Kjeldahl, total [as N]monthly average≤ 20 kg/dJan, Feb, Mar, Apr, Dec
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 14.3 kg/dMay–Nov
Nitrogen, Kjeldahl, total [as N]maximum weekly average≤ 30 kg/dJan, Feb, Mar, Apr, Dec
Flow, in conduit or thru treatment plantmonthly average≤ .6 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year
E. colimonthly geometric mean≤ 126 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 13 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 19.5 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 37.5 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 29.5 kg/dMay–Nov
BOD, carbonaceous [5 day, 20 C]monthly average≤ 56.8 kg/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 44.3 kg/dMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 85.2 kg/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0076881 · MCP: https://passage-data.com/mcp