Council OKs UV lights for sewer plant

The ultraviolet disinfectant system used at the city's wastewater treatment plant should have an intensity meter to measure the output of the UV lights so the output level of the lights can be monitored, Gary Johnson, Alliance Water Resources district manager, told the Nevada City Council before they voted 5-0 to approve the purchase of 48 new UV lights for the disinfectant system.

"I wouldn't have one without an intensity meter," Johnson told the council.

An intensity meter on the system allows the operator to know if the output of the bulbs is decreasing, which is an indication they are at the end of their useful life.

The council accepted the bid of $16,383.84 from Ray Lindsay Co., which is the sole supplier for Trojan UV Systems. Nevada City Manager JD Kehrman told the council that the system is still under warranty and use of any other brand of UV tubes would void the warranty.

He told the council the UV lights have a life of about 9,000 hours, which is equal to about three operating seasons.

"This will replace about half of the bulbs," Shawn Middendorf, Alliance Water Resources local manager, said.

In other business the council:

* Voted 5-0 to accept the low bid of $5,249 from Blue Water Pools for chemical needs at the Walton Family Aquatic Center.

* Voted 5-0 to accept the low bid of $7,656 from Layne Christensen to replace broken line shafts and re-install the No. 1 high service pump with a new pump end at the water treatment plant. This pump is necessary to pump water into the distribution system. It also serves as a backup pump to the other three pumps and is rotated periodically for the purpose of maintenance practice in accord with the manufacturer's recommendations.

* Unanimously approved the first reading of a special ordinance accepting the low bid of $2,090 from Washington Electronics for maintenance and bi-annual service.

* Voted 5-0 to adopt Resolution No. 1359 giving written authorization from the city council as required by the Missouri Department of Transportation to let the Nevada Police Department start the application process for various traffic and safety grants for the next fiscal year.

* Unanimously approved an agreement with MoDOT for funding with a Surface Transportation Program grant to build an ADA compliant sidewalk along Spring St., from the Nevada High School to Walton Park. The STP grants provide an 80 percent matching grant.

* Unanimously approved the second reading of a special ordinance changing the zoning in the 700 block of East Maple from R-1, single family, to C-3, commercial district, at the request of Zack Erwin, the owner. Erwin wants to build a 4,800-square-foot commercial storage facility on the property.