The reports and tables in Sections III & IV provide monthly and yearly totals of the city of Oakwood’s 2021 water pumpage. They include monthly and yearly totals for all wells, the Shafor plant, Springhouse plant and water purchased from outside sources (i.e., city of Dayton and Montgomery County). In 2021, Oakwood was able to provide 99.75% of its own water for daily usage, even for fire responses.

II. WATER MONITORING AND TESTING (OEPA COMPLIANCE)

The following samples were collected at the entry points of the water system at the 120 Springhouse and the 210 Shafor Water Treatment Plants as required by the Ohio EPA:

  • Nitrates, collected August 24, 2021
  • Total Trihalomethanes (TTHM), collected August 24, 2021
  • Total Haloacetic Acids (HAA5), collected September 16, 2021

Samples for Lead and Copper were collected from 20 Oakwood properties between June 20 and September 12, 2021.

All samples tested as required by the Ohio EPA and under the 2021 Ohio EPA Chemical Monitoring schedule were in compliance with the Safe Drinking Water Act. Table 1 on page 5 lists the results of the lead and copper sampling program. Table 2 on pages 6 – 7 compares Oakwood’s water with EPA standards. All results are from the most recent samples taken. Some samples are only required to be taken every three years. The monthly routine sampling consists of the following tests:

  • 10 bacteriological samples per month from Distribution System.
  • 2 sodium samples per month from Distribution System.
  • 1 sodium sample per month from each Plant.
  • 1 iron and manganese sample per week from each Plant.
  • Hardness samples daily from each Plant and Distribution System.
  • Free and total chlorine samples daily from each Plant as well as from the Distribution System.
  • 1 chloride and pH sample per month from each Plant (NPDES Stormwater Permit requirement).
  • 1 Total Dissolved Solids sample per month from each Plant (NPDES Stormwater Permit requirement).

General test results are as follows:

  • All 120 bacteriological samples tested negative for coliform bacteria.
  • Raw water sodium averaged 120 mg/L at 210 Shafor, up from 101 mg/L in 2020; and 161 mg/L at 120 Springhouse, up from 141 mg/L in 2020.
  • System water sodium averaged 353 mg/L, up from 285 mg/L in 2020.
  • Iron at both plant effluents averaged <0.1 mg/L.
  • Manganese at both plant effluents averaged <0.01 mg/L.
  • System water hardness at 210 Shafor averaged 176 mg/L (10.3 GPG).
  • System water hardness at 120 Springhouse averaged 148 mg/L (8.7 GPG).
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