Waiahi Water Company, LLC

NPDES permit HI0021894 · Minor NON-POTW · effective, expires 2029-04-30 · EPA's file as of 2026-09-19

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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.

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

0values over a limit
0required values missing, on 0 form(s)
1of 12 forms filed late

Last period with anything received: 2026-07-31.

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 (16)

OutfallParameterStatisticLimitMonths
001Flow rateDAILY MX report only all year
001TurbidityDAILY MX <= 5 NTU Jan, Feb, Mar, Apr, Nov, Dec
001TurbidityDAILY MX <= 2 NTU May, Jun, Jul, Aug, Sep, Oct
001pHMINIMUM >= 5.5 SU all year
001pHMAXIMUM <= 8 SU all year
001Solids, total suspendedDAILY MX <= 20 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedDAILY MX <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedDAILY MX <= 50 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedDAILY MX <= 25 lb/d May, Jun, Jul, Aug, Sep, Oct
001Aluminum, dissolved [as Al]DAILY MX <= 260 ug/L all year
001Aluminum, dissolved [as Al]DAILY MX <= .65 lb/d all year
001Chromium, total recoverableDAILY MX <= 11 ug/L all year
001Chromium, total recoverableDAILY MX <= .03 lb/d all year
001Chlorine, total residualDAILY MX <= 11 ug/L all year
001Chlorine, total residualDAILY MX <= .03 lb/d all year
001LC50 Static 48Hr Acute Pimephales promelasVALUE <= 0 pass=0;fail=1 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