CASTLE VALLEY SPECIAL SERVICE

NPDES permit UT0023663 · Minor POTW · effective, expires 2030-09-30 · 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)
0of 13 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among UT permits in EPA's filings — check your permit).

Limits in force (39)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 25 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 35 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV report only all year
001BOD, 5-day, 20 deg. CMX WK AV report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMX MO AV <= 25 mg/L all year
001Solids, total suspendedMX WK AV <= 35 mg/L all year
001Solids, total suspendedMX MO AV report only all year
001Solids, total suspendedMX WK AV report only all year
001Nitrogen, ammonia total [as N]MX MO AV <= 4.3 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MX MO AV <= 4.7 mg/L Oct, Nov, Dec
001Nitrogen, ammonia total [as N]MX MO AV <= 4.8 mg/L Apr, May, Jun
001Nitrogen, ammonia total [as N]MX MO AV <= 4.7 mg/L Jan, Feb, Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 9.5 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 9.1 mg/L Oct, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 9.1 mg/L Apr, May, Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 9.3 mg/L Jan, Feb, Mar
001Nitrogen, Kjeldahl, total [as N]MX MO AV report only all year
001Nitrogen, Kjeldahl, total [as N]MX MO AV report only all year
001Phosphorus, total [as P]30DA AVG report only all year
001Phosphorus, total [as P]ANNL MAX <= 324 lb/yr all year
001Phosphorus, total [as P]30DA AVG report only all year
001Oil and greaseDAILY MX <= 10 mg/L all year
001Phosphate, ortho [as P]30DA AVG report only all year
001Chlorine, total residualDAILY MX <= .024 mg/L all year
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliMX WK AV <= 157 #/100mL all year
001Solids, total dissolvedMX MO AV report only all year
001Solids, total dissolvedDAILY MX <= 3500 mg/L all year
001Solids, total dissolvedMX MO AV report only all year
001Solids, total dissolvedANNL AVG <= 1 ton/d all year
001Solids, total dissolvedANNL MAX <= 366 ton/yr all year
001Nitrogen, nitrate total [as NO3]MX MO AV report only all year
001Nitrogen, nitrite total [as NO2]MX MO AV report only all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMN % RMV >= 85 % all year
001Flow, totalMX MO AV <= .7 MGD 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