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Water & Sewer

The water and sewer utilities for the Village of Plain City are provided by the Mid-Ohio Water and Sewer District (MOWSD). For more information regarding the MOWSD, please visit their website here.


Utility Bill Information for Refuse 
To apply for new service or to change your service address, please click here.


Water Main Breaks
Please contact the Mid-Ohio Water and Sewer District with any concerns regarding water main breaks.


Drinking Water Consumer Confidence Report
The 2022 Consumer Confidence Report for the Village of Plain City is now available for download. If you have any questions about this report or your drinking water, or if you would like to receive a printed copy, please call us at 614-873-3527 or email us


Water Hardness
Village water hardness averages 90-110 ppm, or 5.26-6.43 grains per gallon (gpg). What does that mean?
  • 0–3: your water doesn’t necessarily require softening.
  • 3–7: Water between 3–7 gpg is moderately hard, causing spotty dishes and dry skin.
  • 7–11: Hard water is packed with minerals at 7–11 gpg, and you likely deal with crusty faucets and pipes and possibly reddish rings on your porcelain from excess iron.
  • 11–15: Considered very hard, water at 11–15 gpg exhibits all the signs of hard water all the time.
  • 15+: Extremely hard water is anything over 15 gpg. Glasses are extra spotty, skin feels super squeaky, and soap scum is at its most stubborn.

Plain City Wastewater Treatment Plant Expansion
The Ohio EPA has approved the Village's request for upgrades to the Wastewater Treatment Plant. The permit allows for the expansion of the plant’s capacity to 1.25 million gallons per day (MGD). Construction is expected to commence in early-2024. The Environmental Assessment is available for download.

Key provisions of the permit include:
  • While Plain City will be authorized to increase the volume of wastewater discharged, discharge levels for pollutants of particular concern have been capped and will remain at the levels that were authorized under the previous permit.
  • Plain City will be upgrading its treatment technologies at the plant to ensure the plant can maintain compliance with effluent limits at increased capacity. Among these upgrades are new biological, clarification, filtration, and disinfection systems which will supplement, and in some instances replace, the existing infrastructure to improve performance of the current facility and provide expanded treatment.
  • Requirement to conduct a mussel survey to determine if there are threatened and endangered species of mussels downstream of the plant’s discharge.
  • Requirement of increased monitoring frequency of nutrients and ammonia after completion of the project.


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