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Seven Diamonds LLC

Sewerage Systems, North Garden, Virginia. NPDES permit VA0083291, in force until Dec 31, 2029. Last 12 months: over a limit 29 times (last August 2026), 4 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (15 values), form A1 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 1 required value missing, 3 of 13 reports late

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

All 29 values over a limit
Period endingParameterReportedLimitOver by
November 2025Solids, total suspended, monthly average51.9≤ 30 mg/L73%
November 2025Solids, total suspended, maximum weekly average51.9≤ 45 mg/L15%
December 2025BOD, 5-day, 20 deg. C, monthly average55.7≤ 30 mg/L86%
December 2025BOD, 5-day, 20 deg. C, maximum weekly average55.7≤ 45 mg/L24%
March 2026BOD, 5-day, 20 deg. C, monthly average127≤ 30 mg/L323%
March 2026BOD, 5-day, 20 deg. C, monthly average2.7≤ 2.3 kg/d17%
March 2026BOD, 5-day, 20 deg. C, maximum weekly average127≤ 45 mg/L182%
March 2026Solids, total suspended, monthly average44.9≤ 30 mg/L50%
April 2026Solids, total suspended, monthly average51.4≤ 30 mg/L71%
April 2026Solids, total suspended, maximum weekly average51.4≤ 45 mg/L14%
May 2026BOD, 5-day, 20 deg. C, monthly average61.9≤ 30 mg/L106%
May 2026BOD, 5-day, 20 deg. C, maximum weekly average61.9≤ 45 mg/L38%
May 2026Solids, total suspended, monthly average95.1≤ 30 mg/L217%
May 2026Solids, total suspended, maximum weekly average95.1≤ 45 mg/L111%
June 2026BOD, 5-day, 20 deg. C, monthly average116≤ 30 mg/L287%
June 2026BOD, 5-day, 20 deg. C, maximum weekly average116≤ 45 mg/L158%
June 2026Solids, total suspended, monthly average61≤ 30 mg/L103%
June 2026Solids, total suspended, maximum weekly average61≤ 45 mg/L36%
July 2026BOD, 5-day, 20 deg. C, monthly average195≤ 30 mg/L550%
July 2026BOD, 5-day, 20 deg. C, monthly average2.95≤ 2.3 kg/d28%
July 2026BOD, 5-day, 20 deg. C, maximum weekly average195≤ 45 mg/L333%
July 2026Solids, total suspended, monthly average130≤ 30 mg/L333%
July 2026Solids, total suspended, maximum weekly average130≤ 45 mg/L189%
August 2026BOD, 5-day, 20 deg. C, monthly average93.6≤ 30 mg/L212%
August 2026BOD, 5-day, 20 deg. C, maximum weekly average93.6≤ 45 mg/L108%
August 2026Chlorine, total residual, minimum.23≥ .6 mg/L62%
August 2026Solids, total suspended, monthly average161≤ 30 mg/L437%
August 2026Solids, total suspended, monthly average2.38≤ 2.3 kg/d3%
August 2026Solids, total suspended, maximum weekly average161≤ 45 mg/L258%

Limits in force (20)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 2.3 kg/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 3.4 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 2.3 kg/dall year
Solids, total suspendedmaximum weekly average≤ 3.4 kg/dall year
Solids, total suspendedmonthly averagereport only (%)all year
Flow, in conduit or thru treatment plantmonthly average≤ .02 MGD (alert, not enforceable)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD) (alert, not enforceable)all year
Chlorine, total residualmonthly average≤ .059 mg/Lall year
Chlorine, total residualmaximum weekly average≤ .073 mg/Lall year
Chlorine, total residualminimum≥ .6 mg/Lall year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
E. coligeometric mean≤ 126 #/100mLall 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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