Milliken Town of

NPDES permit CO0046485 · Minor NON-POTW · administratively continued, expires 2020-12-31 · 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 2020-12-31 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

0values over a limit
0required values missing, on 0 form(s)
0of 30 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 CO permits in EPA's filings — check your permit).

Limits in force (91)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMX WK AV report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Conductivity30DA AVG report only all year
001ConductivityDAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Bicarbonate ion- [as HCO3]30DA AVG report only all year
001Bicarbonate ion- [as HCO3]DAILY MX report only all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspendedMX 7D AV <= 45 mg/L all year
001Nitrogen, ammonia total [as N]30DA AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, inorganic totalDAILY MX report only all year
001Cyanide, weak acid, dissociableDAILY MX report only all year
001Calcium, total recoverable30DA AVG report only all year
001Calcium, total recoverableDAILY MX report only all year
001Magnesium, total recoverable30DA AVG report only all year
001Magnesium, total recoverableDAILY MX report only all year
001Sodium, total recoverable30DA AVG report only all year
001Sodium, total recoverableDAILY MX report only all year
001Sodium adsorption ratio30DA AVG report only all year
001Sodium adsorption ratioDAILY MX report only all year
001Sodium adsorption ratio30DA AVG report only all year
001Sodium adsorption ratioDAILY MX report only all year
001Chloride [as Cl]30DA AVG report only all year
001Arsenic, total recoverable30DA AVG <= 10 ug/L all year
001Arsenic, total recoverable30DA AVG <= 1.2 ug/L all year
001Iron, total recoverable30DA AVG report only all year
001Iron, dissolved [as Fe]30DA AVG report only all year
001Manganese, dissolved [as Mn]30DA AVG report only all year
001Nickel, total recoverable30DA AVG report only all year
001Cadmium, total recoverableDAILY MX report only all year
001Lead, total recoverableDAILY MX report only all year
001Molybdenum, total recoverable30DA AVG report only all year
001Molybdenum, total recoverableDAILY MX report only all year
001Chromium, hexavalent dissolved [as Cr]30DA AVG report only all year
001Chromium, hexavalent dissolved [as Cr]DAILY MX report only all year
001Chromium, hexavalent dissolved [as Cr]ROLL AVG report only all year
001Zinc, potentially dissolved30DA AVG report only all year
001Zinc, potentially dissolvedDAILY MX report only all year
001Silver, potentially dissolved30DA AVG report only all year
001Silver, potentially dissolvedDAILY MX report only all year
001Copper, potentially dissolved30DA AVG report only all year
001Copper, potentially dissolvedDAILY MX report only all year
001Copper, potentially dissolvedROLL AVG report only all year
001Arsenic, potentially dissolvedDAILY MX report only all year
001Cadmium, potentially dissolvd30DA AVG <= 6 ug/L all year
001Cadmium, potentially dissolvd30DA AVG report only all year
001Cadmium, potentially dissolvdDAILY MX report only all year
001Cadmium, potentially dissolvdDAILY MX report only all year
001Chromium, trivalent, potentially dissolvd30DA AVG report only all year
001Lead, potentially dissolvd30DA AVG report only all year
001Lead, potentially dissolvdDAILY MX report only all year
001Manganese, potentially dissolvd30DA AVG report only all year
001Manganese, potentially dissolvdDAILY MX report only all year
001Nickel, potentially dissolvd30DA AVG report only all year
001Nickel, potentially dissolvdDAILY MX report only all year
001Selenium, potentially dissolvd30DA AVG <= 12.3 ug/L all year
001Selenium, potentially dissolvd30DA AVG <= 12.3 ug/L all year
001Selenium, potentially dissolvdDAILY MX <= 43 ug/L all year
001Selenium, potentially dissolvdDAILY MX <= 18 ug/L all year
001Selenium, potentially dissolvdROLL AVG <= 12 ug/L all year
001Oil and greaseINST MAX <= 10 mg/L all year
001Chromium, trivalent total recoverableDAILY MX report only all year
001Uranium, total30DA AVG report only all year
001Flow, in conduit or thru treatment plant30DA AVG <= .7 MGD all year
001Flow, in conduit or thru treatment plant30DA AVG <= .31 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Mercury, total [low level]30DA AVG report only all year
001E. coli30DA GM report only all year
001E. coliMX 7D GM report only all year
001Sulfide-hydrogen sulfide [undissociated]30DA AVG report only all year
001Sulfide-hydrogen sulfide [undissociated]30DA AVG <= .31 mg/L all year
001Solids, total dissolved30DA AVG report only all year
001Solids, total dissolvedDAILY MX <= 3500 mg/L all year
001Mercury, total [as Hg]30DA AVG <= .05 ug/L all year
001Sulfate30DA AVG report only all year
001Sulfate30DA AVG <= 1620 mg/L all year
001Boron, total30DA AVG report only all year
001Oil and grease visualINST MAX report only all year
001Static Renewal 7 Day Chronic Ceriodaphnia dubiaSingle Rdg report only all year
001Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE report only all year
001Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE >= 18 tox chronic all year
001Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE >= 9 tox chronic all year
001Static Renewal 7 Day Chronic Pimephales promelasSINGSAMP report only all year
001Static Renewal 7 Day Chronic Pimephales promelasMN VALUE report only all year
001Static Renewal 7 Day Chronic Pimephales promelasMN VALUE >= 18 tox chronic all year
001Static Renewal 7 Day Chronic Pimephales promelasMN VALUE >= 9 tox chronic all year
USTTemperature, water deg. centigradeMX WK AV report only all year
USTTemperature, water deg. centigradeDAILY 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