| System Information | Schedule Counts |
Status: Active System Type: Community Population Served: 2,500 | Active: 26 Show Only Active Inactive: 2 Show Inactive Expired: 27 Show Expired Show All |
| Routine Sampling Schedules For Chemicals | ||||||||
| Facility ID |
Name | Status | Test Group | Samples Required |
Sampling Interval |
Start | End | Notes |
| DIST-A | DISTRIBUTION SYSTEM | A | ASBESTOS, DIST | 1 | 9 Years | 01/01/2026 | Open | Collect samples between June 1 and September 30, downstream from a portion of asbestos cement waterline. |
| DIST-A | DISTRIBUTION SYSTEM | A | LEAD & COPPER | 10 | 3 Years | 01/01/2002 | Open | Sample Between June 1st and Sept 30th |
| EP-B | EP FOR WELL #2 - MARX | A | ARSENIC | 1 | 9 Years | 01/01/2005 | Open | Schedule reflects monitoring reduction granted. |
| EP-B | EP FOR WELL #2 - MARX | A | IOC | 1 | 9 Years | 01/01/2005 | Open | Schedule reflects monitoring reduction granted. |
| EP-B | EP FOR WELL #2 - MARX | A | NITRATE | 1 | Yearly | 01/01/2002 | Open | |
| EP-B | EP FOR WELL #2 - MARX | A | NITRITE | 1 | 9 Years | 01/01/2005 | Open | Schedule reflects monitoring reduction granted. |
| EP-B | EP FOR WELL #2 - MARX | A | PFAS | 1 | 6 Months | 01/01/2023 | Open | Initial monitoring - 2 samples only |
| EP-B | EP FOR WELL #2 - MARX | A | RAD - GROSS ALPHA | 1 | 9 Years | 01/01/2014 | Open | |
| EP-B | EP FOR WELL #2 - MARX | A | RAD - RADIUM 226/228 | 1 | 9 Years | 01/01/2014 | Open | |
| EP-B | EP FOR WELL #2 - MARX | A | RAD - URANIUM | 1 | 9 Years | 01/01/2014 | Open | |
| EP-B | EP FOR WELL #2 - MARX | A | SOC | 1 | 3 Years | 01/01/2002 | Open | |
| EP-B | EP FOR WELL #2 - MARX | A | VOLATILE ORGANICS | 1 | 3 Years | 01/01/2002 | Open | |
| EP-C | EP FOR WELL #3 - 282ND | A | NITRATE | 1 | Yearly | 01/01/2002 | Open | Nitrate monitoring only at EP-C. EP-B designated wellfield sampling point for other chemical monitoring from the Troutdale Aquifer. |
| EP-C | EP FOR WELL #3 - 282ND | A | PFAS | 1 | 6 Months | 01/01/2023 | Open | Initial monitoring - 2 samples only |
| EP-D | EP FOR WELL #4 - TELFORD | A | NITRATE | 1 | Yearly | 01/01/2006 | Open | Nitrate monitoring only at EP-D. EP-B designated wellfield sampling point for other chemical monitoring from the Troutdale Aquifer. |
| EP-D | EP FOR WELL #4 - TELFORD | A | PFAS | 1 | 6 Months | 01/01/2023 | Open | Initial monitoring - 2 samples only |
| EP-E | EP FOR WELL #5 - COMPTON | A | ARSENIC | 1 | 9 Years | 01/01/2017 | Open | Schedule reflects monitoring reduction granted. |
| EP-E | EP FOR WELL #5 - COMPTON | A | IOC | 1 | 9 Years | 01/01/2017 | Open | Schedule reflects monitoring reduction granted. |
| EP-E | EP FOR WELL #5 - COMPTON | A | NITRATE | 1 | Yearly | 01/01/2015 | Open | |
| EP-E | EP FOR WELL #5 - COMPTON | A | NITRITE | 1 | 9 Years | 01/01/2017 | Open | Schedule reflects monitoring reduction granted. |
| EP-E | EP FOR WELL #5 - COMPTON | A | PFAS | 1 | 6 Months | 01/01/2023 | Open | Initial monitoring - 2 samples only |
| EP-E | EP FOR WELL #5 - COMPTON | A | RAD - GROSS ALPHA | 1 | 9 Years | 01/01/2014 | Open | |
| EP-E | EP FOR WELL #5 - COMPTON | A | RAD - RADIUM 226/228 | 1 | 9 Years | 01/01/2014 | Open | |
| EP-E | EP FOR WELL #5 - COMPTON | A | RAD - URANIUM | 1 | 9 Years | 01/01/2014 | Open | |
| EP-E | EP FOR WELL #5 - COMPTON | A | SOC | 1 | 3 Years | 01/01/2014 | Open | |
| EP-E | EP FOR WELL #5 - COMPTON | A | VOLATILE ORGANICS | 1 | 3 Years | 01/01/2014 | Open | |
| Inactive Facility Schedules | ||||||||
| EP-A | EP FOR WELL #1 | I | IOC | 1 | 9 Years | 01/01/2005 | 12/31/2004 | Designated all 4 wells in the same Wellfield in 2006. Sample from the Mark Well - the most sensitive. |
| EP-A | EP FOR WELL #1 | I | NITRATE | 1 | Yearly | 01/01/2002 | 01/09/2003 | |
| Expired Schedules | ||||||||
| DIST-A | DISTRIBUTION SYSTEM | A | ASBESTOS, DIST | 1 | 3 Years | 01/01/2020 | 12/31/2025 | |
| EP-A | EP FOR WELL #1 | I | IOC | 1 | 9 Years | 01/01/2005 | 12/31/2004 | Designated all 4 wells in the same Wellfield in 2006. Sample from the Mark Well - the most sensitive. |
| EP-A | EP FOR WELL #1 | I | NITRATE | 1 | Yearly | 01/01/2002 | 01/09/2003 | |
| EP-B | EP FOR WELL #2 - MARX | A | ARSENIC | 1 | 3 Years | 01/01/2002 | 01/01/2002 | Designated all 4 wells in the same Wellfield in 2006. Sample from the Mark Well - the most sensitive. |
| EP-B | EP FOR WELL #2 - MARX | A | RAD - GROSS ALPHA | 1 | 6 Years | 01/01/2008 | 12/31/2013 | Designated all 4 wells in the same Wellfield in 2006. Sample from the Marx Well - the most sensitive. |
| EP-B | EP FOR WELL #2 - MARX | A | RAD - RADIUM 226/228 | 1 | 6 Years | 01/01/2008 | 12/31/2013 | Designated Wellfield in 2006, sample from the Marx Well. Schedule reflects monitoring reduction granted |
| EP-B | EP FOR WELL #2 - MARX | A | RAD - URANIUM | 1 | 6 Years | 01/01/2008 | 12/31/2013 | Schedule reflects monitoring reduction granted |
| EP-B | EP FOR WELL #2 - MARX | A | RAD - URANIUM | 1 | Quarterly | 01/01/2006 | 01/01/2006 | Designated all 4 wells in the same Wellfield in 2006. Sample from the Mark Well - the most sensitive. |
| EP-D | EP FOR WELL #4 - TELFORD | A | ARSENIC | 1 | 3 Years | 01/01/2006 | 01/01/2006 | Wellfield Designation assigned in early April 2006 to EP-B, EP-C, and EP-D. Mark Well (aka Haley Well), is the representative well for sampling purposes due to it's shallower depth and shallower seal. PF |
| EP-D | EP FOR WELL #4 - TELFORD | A | IOC | 1 | 3 Years | 01/01/2006 | 01/01/2006 | Wellfield Designation assigned in early April 2006 to EP-B, EP-C, and EP-D. Mark Well (aka Haley Well), is the representative well for sampling purposes due to it's shallower depth and shallower seal. PF |
| EP-D | EP FOR WELL #4 - TELFORD | A | NITRITE | 1 | 3 Years | 01/01/2006 | 01/01/2006 | Wellfield Designation assigned in early April 2006 to EP-B, EP-C, and EP-D. Mark Well (aka Haley Well), is the representative well for sampling purposes due to it's shallower depth and shallower seal. PF |
| EP-D | EP FOR WELL #4 - TELFORD | A | SOC | 1 | 3 Years | 01/01/2006 | 01/01/2006 | Wellfield Designation assigned in early April 2006 to EP-B, EP-C, and EP-D. Mark Well (aka Haley Well), is the representative well for sampling purposes due to it's shallower depth and shallower seal. PF |
| EP-D | EP FOR WELL #4 - TELFORD | A | VOLATILE ORGANICS | 1 | 3 Years | 01/01/2006 | 01/01/2006 | Wellfield Designation assigned in early April 2006 to EP-B, EP-C, and EP-D. Mark Well (aka Haley Well), is the representative well for sampling purposes due to it's shallower depth and shallower seal. PF |
| EP-E | EP FOR WELL #5 - COMPTON | A | ARSENIC | 1 | 3 Years | 01/01/2008 | 02/19/2013 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | ARSENIC | 1 | 3 Years | 01/01/2014 | 12/31/2016 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | IOC | 1 | 3 Years | 01/01/2008 | 02/19/2013 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | IOC | 1 | 3 Years | 01/01/2014 | 12/31/2016 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | NITRATE | 1 | Yearly | 01/01/2007 | 02/19/2013 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | NITRITE | 1 | 3 Years | 01/01/2008 | 02/19/2013 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | NITRITE | 1 | 3 Years | 01/01/2014 | 12/31/2016 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | RAD - GROSS ALPHA | 2 | 9 Years | 01/01/2008 | 02/19/2013 | Schedule Reflects Monitoring Reduction Granted |
| EP-E | EP FOR WELL #5 - COMPTON | A | RAD - RADIUM 226/228 | 1 | 9 Years | 01/01/2008 | 02/19/2013 | Schedule Reflects Monitoring Reduction Granted |
| EP-E | EP FOR WELL #5 - COMPTON | A | RAD - URANIUM | 1 | 9 Years | 01/01/2008 | 02/19/2013 | Schedule Reflects Monitoring Reduction Granted |
| EP-E | EP FOR WELL #5 - COMPTON | A | SOC | 1 | 3 Years | 01/01/2011 | 02/19/2013 | Schedule Reflects Monitoring Reduction Granted |
| EP-E | EP FOR WELL #5 - COMPTON | A | SOC | 1 | Quarterly | 01/01/2008 | 06/30/2009 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | VOLATILE ORGANICS | 1 | 3 Years | 01/01/2011 | 02/19/2013 | |
| EP-E | EP FOR WELL #5 - COMPTON | A | VOLATILE ORGANICS | 1 | Quarterly | 01/01/2008 | 06/30/2009 | |