Parker Water and Sanitation District

NPDES permit CO0046507 · Major POTW · administratively continued, expires 2017-01-31 · 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.

This permit expired on 2017-01-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

22values over a limit
0required values missing, on 0 form(s)
0of 82 forms filed late

Last period with anything received: 2026-07-31. Most often over: Flow, in conduit or thru treatment plant (20), Copper, potentially dissolved (2).

Reporting

Reports are due about 29 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (212)

OutfallParameterStatisticLimitMonths
001NBOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
001NBOD, 5-day, 20 deg. CMX 7D AV <= 45 mg/L all year
001NSolids, total suspended30DA AVG <= 30 mg/L all year
001NSolids, total suspendedMX 7D AV <= 45 mg/L all year
001NOil and greaseINST MAX <= 10 mg/L all year
001NFlow, in conduit or thru treatment plant30DA AVG <= 2 MGD all year
001NFlow, in conduit or thru treatment plantDAILY MX report only all year
001NBOD, 5-day, percent removalMO AV MN >= 85 % all year
001NSolids, suspended percent removalMO AV MN >= 85 % all year
001NOil and grease visualINST MAX report only all year
001SBOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
001SBOD, 5-day, 20 deg. CMX 7D AV <= 45 mg/L all year
001SSolids, total suspended30DA AVG <= 30 mg/L all year
001SSolids, total suspendedMX 7D AV <= 45 mg/L all year
001SOil and greaseINST MAX <= 10 mg/L all year
001SFlow, in conduit or thru treatment plant30DA AVG <= 2 MGD all year
001SFlow, in conduit or thru treatment plantDAILY MX report only all year
001SBOD, 5-day, percent removalMO AV MN >= 85 % all year
001SSolids, suspended percent removalMO AV MN >= 85 % all year
001SOil and grease visualINST MAX report only all year
002ATemperature, water deg. centigradeMX WK AV report only all year
002ATemperature, water deg. centigradeDAILY MX report only all year
002ApHMINIMUM >= 6.5 SU all year
002ApHMAXIMUM <= 9 SU all year
002ANitrogen, ammonia total [as N]30DA AVG <= 5 mg/L Jan
002ANitrogen, ammonia total [as N]30DA AVG <= 5.2 mg/L Feb
002ANitrogen, ammonia total [as N]30DA AVG <= 5.8 mg/L Mar
002ANitrogen, ammonia total [as N]30DA AVG <= 5.8 mg/L Apr
002ANitrogen, ammonia total [as N]30DA AVG <= 3.8 mg/L May
002ANitrogen, ammonia total [as N]30DA AVG <= 3.2 mg/L Jun
002ANitrogen, ammonia total [as N]30DA AVG <= 3 mg/L Jul
002ANitrogen, ammonia total [as N]30DA AVG <= 2.7 mg/L Aug
002ANitrogen, ammonia total [as N]30DA AVG <= 3.4 mg/L Sep
002ANitrogen, ammonia total [as N]30DA AVG <= 3.8 mg/L Oct
002ANitrogen, ammonia total [as N]30DA AVG <= 4.2 mg/L Nov
002ANitrogen, ammonia total [as N]30DA AVG <= 4.7 mg/L Dec
002ANitrogen, ammonia total [as N]DAILY MX <= 28 mg/L Jan
002ANitrogen, ammonia total [as N]DAILY MX <= 30 mg/L Feb
002ANitrogen, ammonia total [as N]DAILY MX <= 30 mg/L Mar
002ANitrogen, ammonia total [as N]DAILY MX <= 30 mg/L Apr
002ANitrogen, ammonia total [as N]DAILY MX <= 26 mg/L May
002ANitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Jun
002ANitrogen, ammonia total [as N]DAILY MX <= 27 mg/L Jul
002ANitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Aug
002ANitrogen, ammonia total [as N]DAILY MX <= 29 mg/L Sep
002ANitrogen, ammonia total [as N]DAILY MX <= 28 mg/L Oct
002ANitrogen, ammonia total [as N]DAILY MX <= 26 mg/L Nov
002ANitrogen, ammonia total [as N]DAILY MX <= 29 mg/L Dec
002ANitrogen, inorganic totalDAILY MX <= 10 mg/L all year
002APhosphorus, total [as P]30DA AVG <= .05 mg/L all year
002APhosphorus, total [as P]DAILY MX report only all year
002AChloride [as Cl]30DA AVG report only all year
002AChloride [as Cl]DAILY MX report only all year
002AArsenic, total recoverable30DA AVG report only all year
002AArsenic, total recoverable30DA AVG <= 10 ug/L all year
002AChromium, hexavalent dissolved [as Cr]30DA AVG report only all year
002AChromium, hexavalent dissolved [as Cr]DAILY MX report only all year
002AArsenic, potentially dissolved30DA AVG report only all year
002AArsenic, potentially dissolvedDAILY MX report only all year
002ACadmium, potentially dissolvd30DA AVG report only all year
002ACadmium, potentially dissolvd30DA AVG <= .82 ug/L all year
002ACadmium, potentially dissolvdDAILY MX report only all year
002ACadmium, potentially dissolvdDAILY MX <= 5.7 ug/L all year
002AChromium, trivalent, potentially dissolvd30DA AVG report only all year
002AChromium, trivalent, potentially dissolvdDAILY MX report only all year
002ALead, potentially dissolvd30DA AVG report only all year
002ALead, potentially dissolvd30DA AVG <= 6.2 ug/L all year
002ALead, potentially dissolvdDAILY MX report only all year
002ALead, potentially dissolvdDAILY MX <= 158 ug/L all year
002ASelenium, potentially dissolvd30DA AVG report only all year
002ASelenium, potentially dissolvdDAILY MX report only all year
002AFlow, in conduit or thru treatment plant30DA AVG <= 4 MGD all year
002AFlow, in conduit or thru treatment plantDAILY MX report only all year
002AChlorine, total residual30DA AVG <= .011 mg/L all year
002AChlorine, total residualINST MAX <= .019 mg/L all year
002AE. coli30DA GM <= 126 #/100mL all year
002AE. coliMX 7D GM <= 252 #/100mL all year
002ANonylphenol30DA AVG report only all year
002ANonylphenolDAILY MX report only all year
002ASulfate30DA AVG report only all year
002ASulfateDAILY MX report only all year
002QIron, total recoverable30DA AVG report only all year
002QIron, total recoverableDAILY MX report only all year
002QIron, dissolved [as Fe]30DA AVG report only all year
002QIron, dissolved [as Fe]DAILY MX report only all year
002QManganese, dissolved [as Mn]30DA AVG <= 97 ug/L all year
002QManganese, dissolved [as Mn]DAILY MX <= 3970 ug/L all year
002QZinc, potentially dissolved30DA AVG <= 96 ug/L all year
002QZinc, potentially dissolvedDAILY MX report only all year
002QCopper, potentially dissolved30DA AVG <= 11 ug/L all year
002QCopper, potentially dissolved30DA AVG report only all year
002QCopper, potentially dissolvedDAILY MX <= 29 ug/L all year
002QCopper, potentially dissolvedDAILY MX report only all year
002QNickel, potentially dissolvd30DA AVG <= 40 ug/L all year
002QNickel, potentially dissolvdDAILY MX report only all year
002QNonylphenol30DA AVG report only all year
002QNonylphenolDAILY MX report only all year
002QMercury, total [as Hg]30DA AVG report only all year
002QMercury, total [as Hg]30DA AVG <= .008 ug/L all year
002QMercury, total [as Hg]30DA AVG <= .01 ug/L all year
002XStatic Renewal 7 Day Chronic Ceriodaphnia dubiaSINGSAMP report only all year
002XStatic Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE report only all year
002XStatic Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE >= 98 tox chronic all year
002XStatic Renewal 7 Day Chronic Pimephales promelasSINGSAMP report only all year
002XStatic Renewal 7 Day Chronic Pimephales promelasMN VALUE report only all year
002XStatic Renewal 7 Day Chronic Pimephales promelasMN VALUE >= 98 tox chronic all year
003Temperature, water deg. centigradeMX WK AV report only all year
003Temperature, water deg. centigradeDAILY MX report only all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Nitrogen, ammonia total [as N]30DA AVG <= 5 mg/L Jan
003Nitrogen, ammonia total [as N]30DA AVG <= 3.5 mg/L Oct
003Nitrogen, ammonia total [as N]30DA AVG <= 4.2 mg/L Nov
003Nitrogen, ammonia total [as N]30DA AVG <= 4.4 mg/L Dec
003Nitrogen, ammonia total [as N]30DA AVG <= 5.1 mg/L Feb
003Nitrogen, ammonia total [as N]30DA AVG <= 5.1 mg/L Mar
003Nitrogen, ammonia total [as N]30DA AVG <= 4.4 mg/L Apr
003Nitrogen, ammonia total [as N]30DA AVG <= 3.8 mg/L May
003Nitrogen, ammonia total [as N]30DA AVG <= 3.2 mg/L Jun
003Nitrogen, ammonia total [as N]30DA AVG <= 2.9 mg/L Jul
003Nitrogen, ammonia total [as N]30DA AVG <= 2.7 mg/L Aug
003Nitrogen, ammonia total [as N]30DA AVG <= 3.2 mg/L Sep
003Nitrogen, ammonia total [as N]DAILY MX <= 25 mg/L Jan
003Nitrogen, ammonia total [as N]DAILY MX <= 26 mg/L Oct
003Nitrogen, ammonia total [as N]DAILY MX <= 26 mg/L Nov
003Nitrogen, ammonia total [as N]DAILY MX <= 22 mg/L Dec
003Nitrogen, ammonia total [as N]DAILY MX <= 25 mg/L Feb
003Nitrogen, ammonia total [as N]DAILY MX <= 30 mg/L Mar
003Nitrogen, ammonia total [as N]DAILY MX <= 25 mg/L Apr
003Nitrogen, ammonia total [as N]DAILY MX <= 26 mg/L May
003Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Jun
003Nitrogen, ammonia total [as N]DAILY MX <= 25 mg/L Jul
003Nitrogen, ammonia total [as N]DAILY MX <= 24 mg/L Aug
003Nitrogen, ammonia total [as N]DAILY MX <= 28 mg/L Sep
003Nitrogen, inorganic totalDAILY MX <= 10 mg/L all year
003Phosphorus, total [as P]30DA AVG <= .05 mg/L all year
003Phosphorus, total [as P]DAILY MX report only all year
003Chloride [as Cl]30DA AVG report only all year
003Chloride [as Cl]DAILY MX report only all year
003Arsenic, total recoverable30DA AVG report only all year
003Arsenic, total recoverable30DA AVG <= 10 ug/L all year
003Iron, total recoverable30DA AVG report only all year
003Iron, total recoverableDAILY MX report only all year
003Iron, dissolved [as Fe]30DA AVG <= 300 ug/L all year
003Iron, dissolved [as Fe]DAILY MX report only all year
003Manganese, dissolved [as Mn]30DA AVG <= 97 ug/L all year
003Manganese, dissolved [as Mn]DAILY MX <= 3970 ug/L all year
003Chromium, hexavalent dissolved [as Cr]30DA AVG report only all year
003Chromium, hexavalent dissolved [as Cr]DAILY MX report only all year
003Zinc, potentially dissolved30DA AVG <= 96 ug/L all year
003Zinc, potentially dissolvedDAILY MX report only all year
003Copper, potentially dissolved30DA AVG <= 11 ug/L all year
003Copper, potentially dissolved30DA AVG <= 18 ug/L all year
003Copper, potentially dissolvedDAILY MX <= 29 ug/L all year
003Copper, potentially dissolvedDAILY MX <= 29 ug/L all year
003Arsenic, potentially dissolved30DA AVG report only all year
003Arsenic, potentially dissolvedDAILY MX report only all year
003Cadmium, potentially dissolvd30DA AVG report only all year
003Cadmium, potentially dissolvd30DA AVG <= .82 ug/L all year
003Cadmium, potentially dissolvdDAILY MX report only all year
003Cadmium, potentially dissolvdDAILY MX <= 5.7 ug/L all year
003Chromium, trivalent, potentially dissolvd30DA AVG report only all year
003Chromium, trivalent, potentially dissolvdDAILY MX report only all year
003Lead, potentially dissolvd30DA AVG report only all year
003Lead, potentially dissolvd30DA AVG <= 6.2 ug/L all year
003Lead, potentially dissolvdDAILY MX report only all year
003Lead, potentially dissolvdDAILY MX <= 158 ug/L all year
003Nickel, potentially dissolvd30DA AVG <= 40 ug/L all year
003Nickel, potentially dissolvdDAILY MX report only all year
003Selenium, potentially dissolvd30DA AVG report only all year
003Selenium, potentially dissolvdDAILY MX report only all year
003Flow, in conduit or thru treatment plant30DA AVG <= 4 MGD all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chlorine, total residual30DA AVG <= .011 mg/L all year
003Chlorine, total residualINST MAX <= .019 mg/L all year
003E. coli30DA GM <= 126 #/100mL all year
003E. coliMX 7D GM <= 252 #/100mL all year
003Nonylphenol30DA AVG report only all year
003Nonylphenol30DA AVG report only all year
003NonylphenolDAILY MX report only all year
003NonylphenolDAILY MX report only all year
003Mercury, total [as Hg]30DA AVG report only all year
003Mercury, total [as Hg]30DA AVG <= .008 ug/L all year
003Mercury, total [as Hg]30DA AVG <= .01 ug/L all year
003Sulfate30DA AVG report only all year
003SulfateDAILY MX report only all year
003Static Renewal 7 Day Chronic Ceriodaphnia dubiaSINGSAMP report only all year
003Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE report only all year
003Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE >= 100 tox chronic all year
003Static Renewal 7 Day Chronic Pimephales promelasSINGSAMP report only all year
003Static Renewal 7 Day Chronic Pimephales promelasMN VALUE report only all year
003Static Renewal 7 Day Chronic Pimephales promelasMN VALUE >= 100 tox chronic all year
300Plant capacity fact. percent of capacity30DA AVG report only all year
300Plant capacity fact. percent of capacity30DA AVG report only all year
300Plant capacity fact. percent of capacity30DA AVG report only all year
300Plant capacity fact. percent of capacity30DA AVG report only all year
300BOD, 5-day, 20 deg. C30DA AVG report only all year
300BOD, 5-day, 20 deg. C30DA AVG report only all year
300BOD, 5-day, 20 deg. CMX 7D AV report only all year
300BOD, 5-day, 20 deg. CMX 7D AV report only all year
300BOD, 5-day, 20 deg. C30DA AVG report only all year
300BOD, 5-day, 20 deg. C30DA AVG report only all year
300BOD, 5-day, 20 deg. CMX 7D AV report only all year
300BOD, 5-day, 20 deg. CMX 7D AV report only all year
300Solids, total suspended30DA AVG report only all year
300Solids, total suspended30DA AVG report only all year
300Solids, total suspendedMX 7D AV report only all year
300Solids, total suspendedMX 7D AV report only all year
300Flow, in conduit or thru treatment plant30DA AVG report only all year
300Flow, in conduit or thru treatment plant30DA AVG report only all year
300Flow, in conduit or thru treatment plantDAILY MX report only all year
300Flow, in conduit or thru treatment plantDAILY 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