| Reg. Measure ID |
Organization |
Regulatory Measure Type |
Program |
Effective Date |
Status |
| 171520 |
Humboldt Bay Municipal Water Dist. |
401 Certification |
CERFILLEXC |
01/23/2003 |
Historical |
| 173806 |
Humboldt Bay Municipal Water Dist. |
401 Certification |
CERFILLEXC |
01/07/2010 |
Historical |
| 349372 |
Humboldt Bay Municipal Water Dist. |
401 Certification |
CERFILLEXC |
01/07/2010 |
Historical |
| 382579 |
Humboldt Bay Municipal Water Dist. |
Enrollee - Waiver |
TH |
12/16/2011 |
Active |
| 458225 |
Humboldt Bay Municipal Water Dist. |
401 Certification |
CERFILLEXC |
09/03/2025 |
Active |
| 402577 |
Humboldt Bay Municipal Water Dist. |
401 Certification |
CERFILLEXC |
09/15/2015 |
Historical |
| 412818 |
Humboldt Bay Municipal Water Dist. |
Enrollee - 401 Certification |
CERDREDGE |
04/26/2017 |
Historical |
| 413002 |
Humboldt Bay Municipal Water Dist. |
Enrollee - NPDES |
NPDNONMUNIPRCS |
07/01/2016 |
Active |
| 458216 |
Humboldt Bay Municipal Water Dist. |
401 Certification |
CERFILLEXC |
09/23/2025 |
Active |
| 402576 |
Humboldt Bay Municipal Water Dist. |
401 Certification |
CERFILLEXC |
09/15/2015 |
Historical |