Listed below is information on those contaminants that were found in the Oakwood drinking water.

TABLE OF DETECTED CONTAMINANTS

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Contaminants (Units) MCLG MCL Level
Found
Range of
Detections
Violation Sample
Year
Typical Source of Contaminants
Inorganic Contaminants
Fluoride1 (ppm)
210 Shafor
120 Springhouse
4 4 0.25 0.23 - 0.25 No 2024 Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories.
0.23
Barium (ppm)
210 Shafor
120 Springhouse
2 2 0.0773 0.0434 - 0.0773 No 2024 Erosion of natural deposits; discharge from metal refineries; discharge of drilling wastes
0.0434
Nickel (ppb)
210 Shafor
120 Springhouse
N/A N/A 2.4 2.4 – 3.2 No 2024 Erosion of natural deposits
3.2
Beryllium (ppm)
210 Shafor
120 Springhouse
0.004 0.004 0.0001 0.0001 No 2024 Discharge from metal refineries and coal burning factories; discharge from electrical, aerospace and defense industries
0.0001
Nitrate (ppm)
210 Shafor
120 Springhouse
10 10 0.93 0.93 - 1.19 No 2025 Fertilizer runoff/natural geology
1.19
Regulated in the Distribution System
Trihalomethanes (ppb) N/A 80 15.1 36.2 – 15.1 No 2025 By-products of chlorination
Haloacetic Acids (ppb) N/A 60 5.4 ND – 1.1 No 2025 By-products of chlorination
Dibromoacetic Acid (ppm) N/A 60 1.1 N/D- 1.1 No 2025 By-products of chlorination
Volatile Organic Contaminants – Unregulated
Bromoform (ppb) N/A N/A 3.1 1.3 - 3.1 No 2025 By-products of chlorination
Chloroform (ppb) N/A N/A 1.4 0.6 - 1.4 No 2025 By-products of chlorination
Bromodichloromethane (ppb) N/A N/A 4.1 1.7 - 4.1 No 2025 By-products of chlorination
Dibromo-chloromethane (ppb) N/A N/A 6.5 2.7 - 6.5 No 2025 By-products of chlorination
Residual Disinfectants
Total Chlorine (ppm) MRDL= 4 MRDLG= 4 1.01 0.49 - 1.57 No 2025 Water additive to control microbes

Table of Detected Contaminants Footnotes

  1. The City of Oakwood does not add fluoride supplements to the water it produces.
  2. Level found is the highest annual running average from 2024.
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Lead and Copper
Contaminants
(Units)
Action Level
(AL)
90% of test
levels were less
than
Individual Result
over the AL
Violation Year
Sampled
Typical source of
Contaminants
Lead (ppb) 15 3.6 0 No 2025 Corrosion of household plumbing material
0 out of 20 samples were found to have a lead level in excess of the action level of 15 ppb
Copper (ppm) 1.3 0.233 0 No 2025 Corrosion of household plumbing material
0 out of 20 samples were found to have copper levels in excess of the action level of 1.3 ppm