OHA Drinking Water Services
OR41
PWS ID: 00657 ---- PORTLAND WATER BUREAU
Single Chemical Schedule

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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
DIST-A DISTRIBUTION SYSTEM 2456 TOTAL HALOACETIC ACIDS (HAA5) notes Quarterly4/1/2026 - 6/30/2026 82 12 0 11/10/2025
2DBP-01 :
2DBP-02 :
2DBP-03 :
2DBP-05 :
2DBP-06 :
2DBP-07 :
2DBP-09 :
2DBP-10 :
2DBP-12 :
2DBP-13 :
2DBP-14 :
2DBP-15 :
WQ068 AIRPORT WAY
WQ018 24TH & HOYT
WQ020 ENG 24
WQ105 UPPER LINTON
WQ071 INTERSTATE
WQ012 HAYHURST
WQ026 ENG 48
WQ032 BUCKMAN
WQ155 SE 140TH & MITCHELL
WQ253 ROSWELL 2
WQSS 271 - NE 3RD & COUCH
WQSS 195 16TH & ALDER
DIST-A DISTRIBUTION SYSTEM 2950 TTHM notes Quarterly4/1/2026 - 6/30/2026 82 12 0 11/10/2025
2DBP-01 :
2DBP-02 :
2DBP-03 :
2DBP-05 :
2DBP-06 :
2DBP-07 :
2DBP-09 :
2DBP-10 :
2DBP-12 :
2DBP-13 :
2DBP-14 :
2DBP-15 :
WQ068 AIRPORT WAY
WQ018 24TH & HOYT
WQ020 ENG 24
WQ105 UPPER LINTON
WQ071 INTERSTATE
WQ012 HAYHURST
WQ026 ENG 48
WQ032 BUCKMAN
WQ155 SE 140TH & MITCHELL
WQ253 ROSWELL 2
WQSS 271 - NE 3RD & COUCH
WQSS 195 16TH & ALDER