RIVER CEMENT COMPANY

NPDES permit MO0000035 · Minor NON-POTW · effective, expires 2028-12-31 · 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)
6of 139 forms filed late

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

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 (162)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001Temperature, water deg. fahrenheitMO AVG <= 90 deg F all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 80 mg/L all year
001Solids, total suspendedMO AVG <= 60 mg/L all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
001Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Chlorine, total residualDAILY MX <= 17 ug/L all year
001Chlorine, total residualMO AVG <= 8 ug/L all year
002Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
002Temperature, water deg. fahrenheitMO AVG <= 90 deg F all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX <= 80 mg/L all year
002Solids, total suspendedMO AVG <= 60 mg/L all year
002Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
002Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrogen, ammonia total [as N]MO AVG report only all year
002Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
002Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
002Nitrite + Nitrate total [as N]DAILY MX report only all year
002Nitrite + Nitrate total [as N]MO AVG report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Phosphorus, total [as P]MO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Chlorine, total residualDAILY MX <= 17 ug/L all year
002Chlorine, total residualMO AVG <= 8 ug/L all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX <= 80 mg/L all year
003Solids, total suspendedMO AVG <= 60 mg/L all year
003Solids, settleableDAILY MX <= 1.5 mL/L all year
003Solids, settleableMO AVG <= 1 mL/L all year
003Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
003Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
007Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
007Temperature, water deg. fahrenheitMO AVG <= 90 deg F all year
007Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
007Oxygen demand, chem. [high level] [COD]MO AVG report only all year
007pHMINIMUM >= 6.5 SU all year
007pHMAXIMUM <= 9 SU all year
007Solids, total suspendedDAILY MX <= 80 mg/L all year
007Solids, total suspendedMO AVG <= 60 mg/L all year
007Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
007Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
007Nitrogen, ammonia total [as N]DAILY MX report only all year
007Nitrogen, ammonia total [as N]MO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Chlorine, total residualDAILY MX <= 17 ug/L all year
007Chlorine, total residualMO AVG <= 8 ug/L all year
010Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
010Temperature, water deg. fahrenheitMO AVG <= 90 deg F all year
010pHMINIMUM >= 6.5 SU all year
010pHMAXIMUM <= 9 SU all year
010Solids, total suspendedDAILY MX <= 80 mg/L all year
010Solids, total suspendedMO AVG <= 60 mg/L all year
010Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
010Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Chlorine, total residualDAILY MX <= 17 ug/L all year
010Chlorine, total residualMO AVG <= 8 ug/L all year
011BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
011BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
011pHMINIMUM >= 6.5 SU all year
011pHMAXIMUM <= 9 SU all year
011Solids, total suspendedDAILY MX <= 45 mg/L all year
011Solids, total suspendedMO AVG <= 30 mg/L all year
011Nitrogen, ammonia total [as N]DAILY MX <= 3.7 mg/L Apr, May, Jun, Jul, Aug, Sep
011Nitrogen, ammonia total [as N]DAILY MX <= 7.5 mg/L Jan, Feb, Mar, Oct, Nov, Dec
011Nitrogen, ammonia total [as N]MO AVG <= 1.4 mg/L Apr, May, Jun, Jul, Aug, Sep
011Nitrogen, ammonia total [as N]MO AVG <= 2.8 mg/L Jan, Feb, Mar, Oct, Nov, Dec
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011E. coliDAILY MX <= 1030 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
011E. coli30DA GM <= 206 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
012Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
012pHMINIMUM >= 6.5 SU all year
012pHMAXIMUM <= 9 SU all year
012Solids, total suspendedDAILY MX <= 50 mg/L all year
012Solids, settleableDAILY MX <= 1.5 mL/L all year
012Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
012RainfallDAILY MX report only all year
012Storm water flowDAILY MX report only all year
013Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
013pHMINIMUM >= 6.5 SU all year
013pHMAXIMUM <= 9 SU all year
013Solids, total suspendedDAILY MX <= 80 mg/L all year
013Solids, settleableDAILY MX <= 1.5 mL/L all year
013Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
013RainfallDAILY MX report only all year
013Storm water flowDAILY MX report only all year
014Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
014pHMINIMUM >= 6.5 SU all year
014pHMAXIMUM <= 9 SU all year
014Solids, total suspendedDAILY MX <= 80 mg/L all year
014Solids, settleableDAILY MX <= 1.5 mL/L all year
014Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
014RainfallDAILY MX report only all year
014Storm water flowDAILY MX report only all year
015Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
015pHMINIMUM >= 6.5 SU all year
015pHMAXIMUM <= 9 SU all year
015Solids, total suspendedDAILY MX <= 80 mg/L all year
015Solids, settleableDAILY MX <= 1.5 mL/L all year
015Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
015RainfallDAILY MX report only all year
015Storm water flowDAILY MX report only all year
016Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
016pHMINIMUM >= 6.5 SU all year
016pHMAXIMUM <= 9 SU all year
016Solids, total suspendedDAILY MX <= 80 mg/L all year
016Solids, settleableDAILY MX <= 1.5 mL/L all year
016Oil and grease [soxhlet extr.] tot.DAILY AV <= 15 mg/L all year
016RainfallDAILY MX report only all year
016Storm water flowDAILY MX report only all year
017Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
017pHMINIMUM >= 6.5 SU all year
017pHMAXIMUM <= 9 SU all year
017Solids, total suspendedDAILY MX <= 50 mg/L all year
017Solids, settleableDAILY MX <= 1.5 mL/L all year
017Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
017RainfallDAILY MX report only all year
017Storm water flowDAILY MX report only all year
018Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
018pHMINIMUM >= 6.5 SU all year
018pHMAXIMUM <= 9 SU all year
018Solids, total suspendedDAILY MX <= 80 mg/L all year
018Solids, settleableDAILY MX <= 1.5 mL/L all year
018Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
018RainfallDAILY MX report only all year
018Storm water flowDAILY MX report only all year
021Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
021pHMINIMUM >= 6.5 SU all year
021pHMAXIMUM <= 9 SU all year
021Solids, total suspendedDAILY MX <= 80 mg/L all year
021Solids, settleableDAILY MX <= 1.5 mL/L all year
021Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
021RainfallDAILY MX report only all year
021Storm water flowDAILY MX report only all year
022Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
022pHMINIMUM >= 6.5 SU all year
022pHMAXIMUM <= 9 SU all year
022Solids, total suspendedDAILY MX <= 80 mg/L all year
022Solids, settleableDAILY MX <= 1.5 mL/L all year
022Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
022RainfallDAILY MX report only all year
022Storm water flowDAILY MX report only all year
SMDTemperature, water deg. fahrenheitDAILY MX report only all year
SMDTemperature, water deg. fahrenheitMO AV MN report only all year
SMDTemp. diff. between up/down stream deg. FDAILY MX <= 5 deg F all year
SMDTemp. diff. between up/down stream deg. FMO AVG <= 5 deg F all year
SMUTemperature, water deg. fahrenheitDAILY MX report only all year
SMUTemperature, water deg. fahrenheitMO AVG report only all year

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