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Black and Veatch

Water Supply, Chester, Virginia. NPDES permit VA0093335, in force until Jul 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form M1 monthly (12 values), form Q1 quarterly
Last report on file
August 2026

Limits in force (18)

ParameterStatisticLimitMonths
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 60 mg/Lall year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Iron, dissolved [as Fe]monthly averagereport only (ug/L)all year
Iron, dissolved [as Fe]daily maximumreport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ 16 ug/Lall year
Chlorine, total residualdaily maximum≤ 16 ug/Lall year
NOAEL Static 48Hr Acute Ceriodaphnia dubiadaily minimumreport only (%)all year
NOAEL Static 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (%)all year
NOAEL Static 48Hr Acute Pimephales promelasdaily minimumreport only (%)all year
NOAEL Static 48Hr Acute Pimephales promelasdaily maximumreport only (%)all year
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiadaily maximumreport only (tox chronic)all year
TU Static Renewal 7-Day Chronic Pimphales promelasdaily maximumreport only (tox chronic)all year

How strict are these limits?

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

Same industry: the 24 Water Supply permits in Virginia.

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VA0093335 · MCP: https://passage-data.com/mcp