OHA Drinking Water Services
OR41
PWS ID: 00225 ---- CORVALLIS, CITY OF
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 4 0 2/17/2026
2DBP-01 :
2DBP-03 :
2DBP-05 :
2DBP-08 :
SS#1 - 29TH/SILKTASSEL
SS#3 - 4887 NW ELMWOOD
SS#5 - 1500 SW 53RD ST
NORTH HILL RESERVOIR
DIST-A Distribution System 2950 TTHM notes Quarterly4/1/2026 - 6/30/2026 82 4 0 2/17/2026
2DBP-01 :
2DBP-03 :
2DBP-05 :
2DBP-08 :
SS#1 - 29TH/SILKTASSEL
SS#3 - 4887 NW ELMWOOD
SS#5 - 1500 SW 53RD ST
NORTH HILL RESERVOIR