OHA Drinking Water Services
OR41
PWS ID: 94200 ---- USACE DALLES/JD-THE DALLES DAM
Single Chemical Schedule

Return to Chemical Schedule Details

Facility
ID
Facility Name Analyte
Code
Analyte Sampling
Interval
Monitoring
Period
Start
Monitoring
Period
Due Date
Days
Until
Due
Samples
Required
Samples
Received
Last
Sample
Date
Seasonal Sampling
Period
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1074 ANTIMONY, TOTAL 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1010 BARIUM 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1075 BERYLLIUM, TOTAL 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1015 CADMIUM 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1020 CHROMIUM 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1024 CYANIDE 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1025 FLUORIDE 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1035 MERCURY 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1036 NICKEL 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1045 SELENIUM 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1052 SODIUM 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025
EP-A EP FOR WELL #1 (IN WASHINGTON STATE) 1085 THALLIUM, TOTAL 3 Years1/1/2026 - 12/31/2028 1007 1 0 10/21/2025