Clay Rural Water System - Wynstone

NPDES permit SD0028011 · Minor NON-POTW · effective, expires 2027-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
2of 25 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (35)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigrade30DA AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Flow rate30DA AVG report only all year
001Flow rateDAILY MX report only all year
001Conductivity30DA AVG <= 5245 umho/cm all year
001ConductivityDAILY MX <= 9178 umho/cm all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Alkalinity, total [as CaCO3]30DA AVG <= 1833 mg/L all year
001Alkalinity, total [as CaCO3]DAILY MX <= 3208 mg/L all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, nitrate total [as N]30DA AVG report only all year
001Nitrogen, nitrate total [as N]DAILY MX report only all year
001Sulfate, total [as SO4]30DA AVG <= 2336 mg/L all year
001Sulfate, total [as SO4]DAILY MX <= 4088 mg/L all year
001Fluoride, total [as F]DAILY MX <= 5.8 mg/L all year
001Radium 226, totalROLL AVG <= 25 pCi/L all year
001Radium 226, totalDAILY MX <= 75 pCi/L all year
001Floating solids, waste or visible foam-visualDAILY MX report only all year
001Chlorine, total residualDAILY MX <= .019 mg/L all year
001Solids, total dissolved30DA AVG <= 3254 mg/L all year
001Solids, total dissolvedDAILY MX <= 5695 mg/L all year
002Temperature, water deg. centigrade30DA AVG report only all year
002Temperature, water deg. centigradeDAILY MX report only all year
002Flow rate30DA AVG report only all year
002Flow rateDAILY MX report only all year
002pHDAILY MN >= 6.5 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspended30DA AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Floating solids, waste or visible foam-visualDAILY MX report only all year
002Chlorine, total residualDAILY MX <= .019 mg/L all year
002Flow, totalMO TOTAL report only all year
002Duration of dischargeMO TOTAL report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states