OHA Drinking Water Services
OR41
PWS ID: 00665 ---- TUALATIN VALLEY WATER DISTRICT
DBP Sample Sites

See DBP (TTHM & HAA5) monitoring schedule

Sample Point ID Location
2DBP-01 SS #21
2DBP-02 SS #62
2DBP-03 SS #40
2DBP-04 SS #72
2DBP-05 SS #46
2DBP-06 SS #34
2DBP-07 SS #69
2DBP-08 SS #3

Stage 1 compliance sample sites begin with "DBP." DBPMAX refers to the point of maximum residence time in the distribution system; this is generally the point farthest from the point of disinfection. DBPXX (for example, DBP01) refers to points within the distribution that represent an average disinfectant level.

Stage 2 IDSE sample sites begin with "IDSE." Stage 2 compliance sample sites begin with "2DBP." For more information about the Stage 2 DBP Rule, visit the Stage 2 DBP Rule website.