Stage 2 Disinfectants and Disinfection By-Products
CONTAMINANT & UNIT OF MEASUREMENT
DATES OF SAMPLING (MO/YR)
MCL VIOLATION (Y/N)
Level Detected
Likely Source of Contamination
Range of Results
MCLG MCL
By-product of drinking water disinfection
Haloacetic Acids* (HAA5) (ppb)
1/24 - 12/24
N
44.3
30.8 - 58.5
N/A
60
By-product of drinking water disinfection
Total Trihalomethanes* (TTHM) (ppb)
1/24 - 12/24
N
52.6
43.5 - 66.4
N/A
80
*Reported Locational Running Annual Average (LRAA) is based on results from previous quarters not reported on this table.
Lead and Copper (Tap Water)
No. of sampling sites exceeding the AL
90th Percentile Result
AL (Action Level)
CONTAMINANT & UNIT OF MEASUREMENT
DATES OF SAMPLING (MO/YR)
AL EXCEEDED (Y/N)
Likely Source of Contamination
MCLG
Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives
Copper (tap water) (ppm)
6/23
N
0.04
0
1.3
1.3
Corrosion of household plumbing systems; erosion of natural deposits
Lead (tap water) (ppb)
6/23
N
3.3
1
0
15
2025 Water Quality Report
9
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