MAPLETON SEWER DISTRICT

NPDES permit MEU508147 · Minor POTW · effective, expires 2028-11-30 · 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)
1of 57 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (63)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CDAILY MX <= 100 mg/L all year
001pHMINIMUM report only all year
001pHMAXIMUM report only all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Nitrogen, nitrate total [as N]DAILY MX report only all year
001Lagoon freeboardDAILY MN report only all year
MW1Temperature, water deg. centigradeDAILY MX report only May, Oct
MW1Specific conductanceDAILY MX report only May, Oct
MW1pHMINIMUM report only May, Oct
MW1pHMAXIMUM report only May, Oct
MW1Solids, total suspendedDAILY MX report only May, Oct
MW1Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
MW1Depth to water level ft below landsurfaceDAILY MX report only May, Oct
MW2Temperature, water deg. centigradeDAILY MX report only May, Oct
MW2Temperature, water deg. centigradeDAILY MX report only May, Oct
MW2Specific conductanceDAILY MX report only May, Oct
MW2Specific conductanceDAILY MX report only May, Oct
MW2pHMAXIMUM report only May, Oct
MW2pHDAILY MX report only May, Oct
MW2Solids, total suspendedDAILY MX report only May, Oct
MW2Solids, total suspendedDAILY MX report only May, Oct
MW2Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
MW2Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
MW2Depth to water level ft below landsurfaceDAILY MX report only May, Oct
MW2Depth to water level ft below landsurfaceDAILY MX report only May, Oct
MW3Temperature, water deg. centigradeDAILY MX report only May, Oct
MW3Temperature, water deg. centigradeDAILY MX report only May, Oct
MW3Specific conductanceDAILY MX report only May, Oct
MW3Specific conductanceDAILY MX report only May, Oct
MW3pHMAXIMUM report only May, Oct
MW3pHMAXIMUM report only May, Oct
MW3Solids, total suspendedDAILY MX report only May, Oct
MW3Solids, total suspendedDAILY MX report only May, Oct
MW3Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
MW3Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
MW3Depth to water level ft below landsurfaceDAILY MX report only May, Oct
MW3Depth to water level ft below landsurfaceDAILY MX report only May, Oct
MW4Temperature, water deg. centigradeDAILY MX report only May, Oct
MW4Specific conductanceDAILY MX report only May, Oct
MW4pHMAXIMUM report only May, Oct
MW4Solids, total suspendedDAILY MX report only May, Oct
MW4Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
MW4Depth to water level ft below landsurfaceDAILY MX report only May, Oct
MW5Temperature, water deg. centigradeDAILY MX report only May, Oct
MW5Specific conductanceDAILY MX report only May, Oct
MW5pHMAXIMUM report only May, Oct
MW5Solids, total suspendedDAILY MX report only May, Oct
MW5Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
MW5Depth to water level ft below landsurfaceDAILY MX report only May, Oct
MW6Temperature, water deg. centigradeDAILY MX report only May, Oct
MW6Specific conductanceDAILY MX report only May, Oct
MW6pHMAXIMUM report only May, Oct
MW6Solids, total suspendedDAILY MX report only May, Oct
MW6Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
MW6Depth to water level ft below landsurfaceDAILY MX report only May, Oct
SF2Application rate, gallons spray irrigationWKLY MAX <= 645000 gal Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
SF2Flow, totalMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
SF3Application rate, gallons spray irrigationWKLY MAX <= 663000 gal Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
SF3Flow, totalMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
SM1Application rate, gallons spray irrigationWKLY MAX <= 488700 gal Apr, May, Jun, Jul, Aug, Sep, Oct
SM1Flow, totalMO TOTAL report only all year
SM1Flow, totalANNL TOT <= 24000000 gal all year
UD1Nitrogen, nitrate total [as N]DAILY MX report only Aug

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