Central Wyoming Regional Water System

NPDES permit WY0097018 · Minor NON-POTW · effective, expires 2029-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

0values over a limit
0required values missing, on 0 form(s)
4of 22 forms filed late

Last period with anything received: 2026-06-30.

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 (42)

OutfallParameterStatisticLimitMonths
001pHINST MIN >= 6.5 SU all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedWKLY AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001DurationMO TOTAL report only all year
001DurationMO TOTAL report only all year
001Chlorine, total residualDAILY MX <= 1.4 mg/L Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Chlorine, total residualDAILY MX <= 1.4 mg/L Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Chlorine, total residualDAILY MX <= 1 mg/L May, Jun, Jul, Aug, Sep
001Chlorine, total residualDAILY MX <= 1 mg/L May, Jun, Jul, Aug, Sep
001FlowMO AVG <= 2 MGD all year
001FlowMO AVG <= 2 MGD all year
001FlowDAILY MX report only all year
001FlowDAILY MX report only all year
002pHINST MIN >= 6.5 SU all year
002pHINST MIN >= 6.5 SU all year
002pHINST MAX <= 9 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspendedMO AVG <= 20 mg/L all year
002Solids, total suspendedMO AVG <= 20 mg/L all year
002Solids, total suspendedWKLY AVG <= 30 mg/L all year
002Solids, total suspendedWKLY AVG <= 30 mg/L all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Selenium, total [as Se]DAILY MX report only all year
002DurationMO TOTAL report only all year
002DurationMO TOTAL report only all year
002Chlorine, total residualDAILY MX <= 1.4 mg/L Jan, Feb, Mar, Apr, Oct, Nov, Dec
002Chlorine, total residualDAILY MX <= 1.4 mg/L Jan, Feb, Mar, Apr, Oct, Nov, Dec
002Chlorine, total residualDAILY MX <= 1 mg/L May, Jun, Jul, Aug, Sep
002Chlorine, total residualDAILY MX <= 1 mg/L May, Jun, Jul, Aug, Sep
002FlowMO AVG <= 2 MGD all year
002FlowMO AVG <= 2 MGD all year
002FlowDAILY MX report only all year
002FlowDAILY MX 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