GREEN DIAMOND PERFORMANCE MATERIALS, INC.

NPDES permit OR0001627 · Minor NON-POTW · administratively continued, expires 2016-09-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2016-09-30 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)
2of 15 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (10)

OutfallParameterStatisticLimitMonths
001pHDAILY MN report only Jul, Aug, Sep, Oct
001pHDAILY MN >= 6.5 SU Jan, Feb, Mar, Apr, May, Jun, Nov, Dec
001pHDAILY MX report only Jul, Aug, Sep, Oct
001pHDAILY MX <= 8.5 SU Jan, Feb, Mar, Apr, May, Jun, Nov, Dec
001Solids, total suspendedVALUE report only all year
001Oil & GreaseVALUE report only all year
001Hardness, total [as CaCO3]VALUE report only all year
001Silver, total [as Ag]VALUE report only all year
001Oil and grease visualVALUE report only Jul, Aug, Sep, Oct
001Oil and grease visualVALUE <= 0 N=0;Y=1 Jan, Feb, Mar, Apr, May, Jun, Nov, Dec

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