Monday, March 27, 2017
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Public Works Department

The Department of Public Works is responsible for maintaining city streets, right of ways, and parks. Primary duties include, but are not limited to grass cutting, tree trimming, snow removal, street signage repair and replacement.

Reducing Thermal Loads into Waterways

The City of Enterprise would like to educate the public to the benefits of shading the streams throughout our community. Water quality in the Lower Grande Ronde Sub-basins currently do not meet some water quality standards. The City of Enterprise is located within the Wallowa River Sub-basin, which is one of the Lower Grande Ronde River Sub-basins. One of the concerns throughout the area is high temperatures in our streams. When water quality standards are not met, the Federal Clean Water Act requires a Total Maximum Daily Load to be established, which determines how much pollution can be added to the river without exceeding water quality standards.

The (TMDL) lists potential causes of human-related stream heating in the Sub-basins of the Lower Grande Ronde River Basin. These include:

  • Near-stream vegetation disturbance or removal that reduces stream surface shading via decreased riparian vegetation height, width and/or density, thus increasing the amount of solar radiation reaching the stream surface.
  • Channel modifications and widening (increased width to depth ratios) increased the stream surface area exposed to solar radiation.
  • Reduction of summertime flows decrease the thermal assimilative capacity of streams, causing larger temperature increases in stream segments where flows are reduced.
  • Irrigation canals and ditches are often unshaded and increase the surface area of water exposed to solar radiation. Where these irrigation waters are allowed to mix with natural stream flows, stream temperatures can increase, In addition, irrigation return flows coming off fields or pastures can contribute warm waters to streams.

For most of these causes it is either not possible or not practical for the city to do anything that would have a meaningful impact on stream temperatures. For example, the city cannot augment streamflows by reducing withdrawals from the river since the city does not use water from the river, and has no authority to regulate diversions from the river or shallow aquifer. Similarly, it is not practical for the city to change the channel alignment within the city boundaries. Fortunately there is already a significant amount of shade-producing vegetation along much of Prairie Creek and the Wallowa River within the city limits, and an existing city ordinance (Section 4.180 of Article 4 of Appendix 1) establishes a riparian corridor that provides some protection of the streamside vegetation. Section 8.110 of Article 4 of Appendix 1 places significant restrictions on modifications to the Prairie Creek Floodways. The city would be glad to provide information and resources that would help property owners who are interested in improving the shade provided to the streams adjacent to their property by calling the Public Works Department at 541-426-3093.

Water/Sewer Department

The Water Department’s primary responsibility is to provide residents with clean, safe drinking water.  The Sewer Department’s responsibility is to keep the collection lines flowing and treating the sewage at the treatment plant.

Call the Water Department 541-426-4196
•If you have received unusually high or low water bill to schedule a Public Works employee to check for leaks and/or faulty meters.
•If you notice water coming up from streets, sidewalks, grassy areas or fire hydrants so leaks can be repaired.

Storm Sewers

The Sewer Department cleans the sewer lines on a yearly basis and as needed after routine inspections. The Sewer Department cleans catch basins bi-annually, and on an as–needed basis. Call the Sewer Department if you notice standing water in the streets, around man holes, or smell any foul odor so the problem can be determined and the appropriate repairs can be made.

Sewage Backups

Any resident or business who experiences a sewage backup of any type should call our Sewer Department at 541-426-3093. A determination will be made if the problem is within the sewer system, or advise the citizen of where a problem may exist.

The Public Works Department offices are located at 905 Golf Course Road. Office hours are Monday - Thursday 7:00 a.m. to 4:00 p.m, Friday 7:00 am to 12:00 pm. Telephone is 541-426-3093. For water/sewer emergencies call 541-263-0334

City of Enterprise Wastewater Rate Study Oct 2012.pdf
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