OHA Drinking Water Services
OR41
PWS ID: 00722 ---- SUNSTONE - BOULDER CREEK
LRAAs and OELs

LRAA = Locational running annual average; OEL = Operational evaluation level. Learn about OELs here.
Averages are subject to change as new data is taken into consideration.

TTHM MCL = 0.080 mg/L,  HAA5 MCL = 0.060 mg/L.  MCL exceedances are indicated with red text.

Monitoring
Period		 Last
Sample		 Sample
Point		 Location TTHM
LRAA		 TTHM
OEL		 HAA5
LRAA		 HAA5
OEL
1Q2026 Jan 13, 2026 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.038 0.039 0.044 0.048
4Q2025 Oct 21, 2025 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.037 0.045 0.044 0.049
3Q2025 Jul 08, 2025 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.032 0.029 0.042 0.036
2Q2025 Apr 01, 2025 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.034 0.032 0.043 0.043
1Q2025 Jan 14, 2025 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.035 0.034 0.045 0.046
4Q2024 Oct 29, 2024 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.030 0.038 0.036 0.048
3Q2024 Aug 20, 2024 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.025 0.028 0.027 0.030
2Q2024 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.017 0.019
1Q2024 Feb 13, 2024 2DBP-02 N NEW BRIDGE COURT & NEW BRIDGE RD 0.017 0.017 0.019 0.019