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Washington County Water Conservancy District

Water Supply, Saint George, Utah. NPDES permit UT0026131, in force until Jul 31, 2031. Last 12 months: no values over a limit, 1 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (17 values), form W quarterly (1 value), form Y every 60 months
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 2 of 13 reports late

Limits in force (30)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-daymaximum monthly average≤ 25 mg/Lall year
BOD, 5-daymaximum weekly average≤ 35 mg/Lall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmaximum monthly average≤ 25 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 35 mg/Lall year
Oil & Greasedaily maximum≤ 10 mg/Lall year
Cyanide, total [as CN]daily maximumreport only (mg/L)all year
Arsenic, total [as As]maximum monthly averagereport only (mg/L)all year
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year
Chromium, total [as Cr]daily maximumreport only (mg/L)all year
Copper, total [as Cu]daily maximumreport only (mg/L)all year
Iron, total [as Fe]maximum monthly averagereport only (mg/L)all year
Lead, total [as Pb]daily maximumreport only (mg/L)all year
Manganese, total [as Mn]maximum monthly averagereport only (mg/L)all year
Nickel, total [as Ni]daily maximumreport only (mg/L)all year
Silver, total [as Ag]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]daily maximumreport only (mg/L)all year
Selenium, total [as Se]daily maximumreport only (mg/L)all year
Chlorine, total residualdaily maximum≤ .281 mg/Lall year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 158 #/100mLall year
Solids, total dissolveddaily maximum≤ 1200 mg/Lall year
Solids, total dissolveddaily maximum≤ 1 ton/dall year
Solids, total dissolvedannual maximum≤ 366 ton/yrDec
Mercury, total [as Hg]daily maximumreport only (mg/L)all year
Flow, totalmaximum monthly average≤ .07 MGDall year
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (N=0;Y=1)Apr, May, Jun, Oct, Nov, Dec
Pass/Fail Static Renewal 48Hr Acute Pimephales promelasdaily maximumreport only (N=0;Y=1)Jan, Feb, Mar, Jul, Aug, Sep

How strict are these limits?

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

Same industry: the 11 Water Supply permits in Utah.

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/UT0026131 · MCP: https://passage-data.com/mcp