| System Information | Schedule Counts |
Status: Active System Type: Community Population Served: 1,628 | Active: 15 Inactive: 0 Expired: 9 Show Expired |
| Routine Sampling Schedules For Chemicals | ||||||||
| Facility ID |
Name | Status | Test Group | Samples Required |
Sampling Interval |
Start | End | Notes |
| CH-A | COMMON HEADER FOR WTP-A | A | TOTAL ORGANIC CARBON | 1 | Quarterly | 07/01/2010 | Open | Raw Water TOC Only Required to Maintain Reduction in DBP Monitoring |
| DIST-A | DISTRIBUTION SYSTEM | A | ASBESTOS, DIST | 1 | 9 Years | 01/01/2011 | Open | |
| DIST-A | DISTRIBUTION SYSTEM | A | DBP2 HAA5 ONLY | 1 | Yearly | 01/01/2016 | Open | Sample in January |
| DIST-A | DISTRIBUTION SYSTEM | A | DBP2 TTHM ONLY | 1 | Yearly | 01/01/2015 | Open | Sample in October |
| DIST-A | DISTRIBUTION SYSTEM | A | LEAD & COPPER | 10 | 3 Years | 01/01/2002 | Open | Sample Between June 1st and Sept 30th |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | ARSENIC | 1 | 9 Years | 01/01/2014 | Open | Schedule Reflects Monitoring Reduction Granted |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | IOC | 1 | 9 Years | 01/01/2002 | Open | Schedule Reflects Monitoring Reduction Granted |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | NITRATE | 1 | Yearly | 01/01/2002 | Open | |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | NITRITE | 1 | 9 Years | 01/01/2002 | Open | Schedule Reflects Monitoring Reduction Granted |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | PFAS | 1 | Quarterly | 01/01/2023 | Open | Initial monitoring - 4 quarters only |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | RAD - GROSS ALPHA | 1 | 9 Years | 01/01/2008 | Open | Schedule Reflects Monitoring Reduction Granted |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | RAD - RADIUM 226/228 | 1 | 9 Years | 01/01/2014 | Open | Schedule Reflects Monitoring Reduction Granted |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | RAD - URANIUM | 1 | 9 Years | 01/01/2008 | Open | Schedule Reflects Monitoring Reduction Granted |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | SOC | 1 | 3 Years | 01/01/2002 | Open | |
| EP-A | EP FOR UPPER TUALATIN R. - HAINES FALLS | A | VOLATILE ORGANICS | 1 | Yearly | 01/01/2002 | Open | |