Echo Bay Minerals Company

NPDES permit WA0991005 · Minor NON-POTW · administratively continued, expires 2023-06-30 · 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

4values over a limit
8required values missing, on 8 form(s)
0of 13 forms filed late

Last period with anything received: 2026-07-31. Most often over: Sulfide, total [as S] (4).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among WA permits in EPA's filings — check your permit).

Limits in force (33)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM report only (alert) all year
001Temperature, water deg. centigradeMINIMUM report only (alert) all year
001ConductivityMAXIMUM report only (alert) all year
001ConductivityMINIMUM report only (alert) all year
001pHMAXIMUM report only (alert) Jan, Feb, Jul, Aug, Sep, Oct, Nov, Dec
001pHDAILY MN >= 6.5 SU Mar, Apr, May, Jun
001pHMINIMUM report only (alert) Jan, Feb, Jul, Aug, Sep, Oct, Nov, Dec
001pHDAILY MX <= 8.5 SU Mar, Apr, May, Jun
001Bicarbonate ion- [as HCO3]MAXIMUM report only (alert) all year
001Solids, settleableMO AVG <= 20000 ug/L Mar, Apr, May, Jun
001Nitrogen, ammonia total [as N]MO AVG <= 1200 ug/L Mar, Apr, May, Jun
001Nitrogen, ammonia total [as N]MO AVG <= 1200 ug/L Mar, Apr, May, Jun
001Phosphorus, total [as P]MAXIMUM report only (alert) all year
001Carbon, tot organic [TOC]MAXIMUM report only (alert) all year
001Carbon, tot organic [TOC]MO AVG report only (alert) all year
001Hardness, total [as CaCO3]MAXIMUM report only (alert) all year
001Calcium, total [as Ca]MAXIMUM report only (alert) all year
001Arsenic, total [as As]MAXIMUM report only (alert) all year
001Cadmium, total [as Cd]MAXIMUM <= 5.6 ug/L Mar, Apr, May, Jun
001Cadmium, total [as Cd]MO AVG <= 3.9 ug/L Mar, Apr, May, Jun
001Copper, total [as Cu]MAXIMUM <= 70 ug/L Mar, Apr, May, Jun
001Copper, total [as Cu]MO AVG <= 48 ug/L Mar, Apr, May, Jun
001Iron, total [as Fe]MAXIMUM report only (alert) all year
001Lead, total [as Pb]MAXIMUM <= 45 ug/L Mar, Apr, May, Jun
001Lead, total [as Pb]MO AVG <= 31 ug/L Mar, Apr, May, Jun
001Manganese, total [as Mn]MAXIMUM report only (alert) all year
001Zinc, total [as Zn]MAXIMUM <= 426 ug/L Mar, Apr, May, Jun
001Zinc, total [as Zn]MO AVG <= 292 ug/L Mar, Apr, May, Jun
001Phosphorus [reactive as P]MAXIMUM report only (alert) all year
001Mercury, total [as Hg]MAXIMUM <= .02 ug/L Mar, Apr, May, Jun
001Mercury, total [as Hg]MO AVG <= .014 ug/L Mar, Apr, May, Jun
001FlowMAXIMUM report only (alert) all year
001FlowMO AVG report only (alert) 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