U.S. SILVER CORP - IDAHO INC

NPDES permit ID0025429 · Minor NON-POTW · administratively continued, expires 1995-03-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 1995-03-30 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)
3of 13 forms filed late

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

Reporting

Reports are due about 10 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (51)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspended30DA AVG <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Cadmium, total [as Cd]30DA AVG <= .05 mg/L all year
001Cadmium, total [as Cd]DAILY MX <= .1 mg/L all year
001Copper, total [as Cu]30DA AVG <= .15 mg/L all year
001Copper, total [as Cu]DAILY MX <= .3 mg/L all year
001Lead, total [as Pb]30DA AVG <= .3 mg/L all year
001Lead, total [as Pb]DAILY MX <= .6 mg/L all year
001Zinc, total [as Zn]30DA AVG <= .75 mg/L all year
001Zinc, total [as Zn]DAILY MX <= 1.5 mg/L all year
001Flow, in conduit or thru treatment plant30DA AVG report only all year
001Mercury, total [as Hg]30DA AVG <= .001 mg/L all year
001Mercury, total [as Hg]DAILY MX <= .002 mg/L all year
RECpHMINIMUM report only Apr, Oct
RECpHMINIMUM report only Apr, Oct
RECpHMAXIMUM report only Apr, Oct
RECpHMAXIMUM report only Apr, Oct
RECpHMINIMUM report only Apr, Oct
RECpHMINIMUM report only Apr, Oct
RECpHMAXIMUM report only Apr, Oct
RECpHMAXIMUM report only Apr, Oct
RECSolids, total suspendedINST MAX report only Apr, Oct
RECSolids, total suspendedINST MAX report only Apr, Oct
RECSolids, total suspendedINST MAX report only Apr, Oct
RECSolids, total suspendedINST MAX report only Apr, Oct
RECCadmium, total [as Cd]INST MAX report only Apr, Oct
RECCadmium, total [as Cd]INST MAX report only Apr, Oct
RECCadmium, total [as Cd]INST MAX report only Apr, Oct
RECCadmium, total [as Cd]INST MAX report only Apr, Oct
RECCopper, total [as Cu]INST MAX report only Apr, Oct
RECCopper, total [as Cu]INST MAX report only Apr, Oct
RECCopper, total [as Cu]INST MAX report only Apr, Oct
RECCopper, total [as Cu]INST MAX report only Apr, Oct
RECLead, total [as Pb]INST MAX report only Apr, Oct
RECLead, total [as Pb]INST MAX report only Apr, Oct
RECLead, total [as Pb]INST MAX report only Apr, Oct
RECLead, total [as Pb]INST MAX report only Apr, Oct
RECZinc, total [as Zn]INST MAX report only Apr, Oct
RECZinc, total [as Zn]INST MAX report only Apr, Oct
RECZinc, total [as Zn]INST MAX report only Apr, Oct
RECZinc, total [as Zn]INST MAX report only Apr, Oct
RECFlow, in conduit or thru treatment plantINST MAX report only Apr, Oct
RECFlow, in conduit or thru treatment plantINST MAX report only Apr, Oct
RECFlow, in conduit or thru treatment plantINST MAX report only Apr, Oct
RECFlow, in conduit or thru treatment plantINST MAX report only Apr, Oct
RECMercury, total [as Hg]INST MAX report only Apr, Oct
RECMercury, total [as Hg]INST MAX report only Apr, Oct
RECMercury, total [as Hg]INST MAX report only Apr, Oct
RECMercury, total [as Hg]INST MAX report only Apr, Oct

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