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Utilities & Taxes

Watertown has municipally owned utilities so our residents and industrial users enjoy high-quality, local service and some of the lowest utility rates in the state. During a 2017 rate comparison, Watertown Municipal Utilities costs were compared to other cities in Eastern, South Dakota. The results of the comparison indicated Watertown’s rates are amongst the lowest as compared to other communities.

See how we compare:
PDF: Comparison of monthly costs for Electricity
PDF: Comparison of Monthly Water Service Bills PDF
PDF: Comparison of Monthly Rate Bills PDF

And South Dakota’s business – friendly tax climate makes moving your company here the best business decision you can make.

Water
The Watertown Municipal Utility operates water treatment facilities with a capacity of 14.8 million gallons of water per day. At the completion of a major expansion project in 2011 we have 13.2 million gallons of developed water production. We have 6 elevated storage tanks with a total capacity of 3.3 million gallons of water. We also have ground level storage with a capacity of 3.3 million gallons. The system has 4 booster stations that supply the 3 pressure zones that make up the distribution system. We also have ground level storage with a capacity of 3 million gallons. WMU has more than adequate water rights to serve customers current and future requirements. The system has 4 booster stations that supply the 3 pressure zones that make up the distribution system. WMU currently offers a water rate of $2.57 / CCF for the first 30,000 Cu. FT, and $2.24 / CCF for any consumption over 30,000 Cu. FT.

Electric
WMU serves our customers through a looped 115 kv system with 115 / 12.5 kv substations throughout the city. Total capacity of WMU’s distribution system is roughly 120 MW with a peak deman of 76 MW. 35% of our requirements are served from WAPA (hydro) and 65% Missouri River Energy Services. MRES is in the process of constructing a hydro power plant on the Des Moines River near Pella, Iowa which will serve its members with an additional 34 megawatts of power with a peak of 55 megawatts at high water. WMU General Manager sits on the board of directors for Missouri River Energy Services with direct rate making authority. Watertown is currently in a demand reduction pilot project to help keep our supply costs low. Our industrial power rate is $.033/KWH with $10.40/KW & $12.30/KW seasonal demand with a 2% discount on demand and energy charges when electing service at primary voltages.

Natural Gas
WMU serves customers through a looped 60 psi steel distribution system. Our TBS is fed by two seperate natural gas transmission pipelines. Northern Border Pipeline is the primary feed with Northern Natural Gas as a back-up feed. WMU constructed a pipeline capable of 400 psi from our TBS to a second TBS just south of Wal-Mart. This pipeline and TBS was constructed for future growth on the East and South East side of town. Natural gas rate for Large Firm customers is $.67 per CCF with a $15.00/month customer charge and for interruptible gas customers is $.64 per CCF with a $20.00/month service charge.

Hanten Industrial Park
WMU serves the Hanten Industrial Park through a looped system and is fed with 10 inch and 8 inch water mains operating at 64 psig. This industrial park has 2,000,000 gallons of elevated storage, 3.3 million gallons of ground storage and a treatment plant with acapacity of 14.8 million gallons per day.

Endres Industrial Park
WMU serves the Endres Industrial Park through a looped system fed with 10 inch and 12 inch water main operating at 76 psi. This industrial park has 900,000 gallons of elevated storage, two booster stations with a capacity of 4.5 million gallons per day.

Pheasant Ridge Industrial Park
WMU serves Pheasant Ridge water through a looped system fed with 8 inch and 10 inch water main operating at 66 psi. This industrial park has 900,000 gallons of elevated storage, two booster stations with a capacity of 4.5 million gallons per day.

For the current rates on gas, electric and water, please visit Watertown Municipal Utilities website or download the information from below:
PDF: Download the PDF Version of the Current Rate Schedule

Taxes
Owner Occupied Property Total Mill Levy    $13.936/$1,000
Percent of Full Value Assessed                  85.0%
Local Sales Tax Rate                  2.5%
State Sales Tax Rate                  4.0%

  • NO CORPORATE INCOME TAX
  • NO PERSONAL INCOME TAX
  • NO PERSONAL PROPERTY TAX
  • NO BUSINESS INVENTORY TAX

Request More Info

The Watertown Development Company is a non-profit organization established to own and operate buildings, lands and development areas for the economic benefit of Watertown. Use the form below to send a message to our executive team and we’ll be sure to respond as soon as we can.
  • You can call us directly at (605) 884-0340 or toll free at 1-888-898-6767