Public Notices

The following public notices are published per the requirement of the Environmental Protection Agency and only apply to the noted area or community.

Failure to Monitor

Public water systems are required by the U.S. Environmental Protection Agency (USEPA), Arizona Department of Environmental Quality and the Maricopa County Environmental Services Division to monitor for specific contaminants on a regular basis. Nitrate testing is performed quarterly for wells with Nitrate levels between 5 to 10 mg/L. During April 2006, the City of Peoria did not monitor for Nitrate from its Weedville well and therefore cannot be sure of the quality of your drinking water during that time. The area of influence is indicated within the map below.

Historically, the Nitrate levels have not exceeded the 10 mg/L MCL. The average Nitrate concentration over the past four quarters prior to the missed monitoring was 4.6 mg/L. The well had operated during the first two weeks of April, 2006. The well was taken out of service for major modifications to the on site pumping equipment.

Infants below the age of 6 months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. All Nitrate testing performed for the Weedville well since November of 1999 and recent testing have shown the concentration within the Safe Drinking Water limits. The most recent Nitrate concentration was 7.3 mg/L.

Improved coordination between the Field Operations and Environmental Divisions has been accomplished to correct sampling inconsistencies. For more information contact the EPA Safe Drinking Water Hotline: (800) 426-4791 or Peoria’s Environmental office at waterquality@peoriaaz.gov or call 623-773-7286.

Residual Disinfectant

This notice is to inform the customers of the City of Peoria Quintero Community that in August and September of 2006, our water system (PWS #0407513) did not meet the minimum level of Chlorine Residual within the distribution system at all times. The minimum disinfection level required by Maricopa County Environmental Services and the Arizona Administrative Code is 0.2 mg/L.

It should be noted that residual chlorine measurement is the first step in a two part test which measures the bacteriological quality of the water. The second step is to perform testing for Total Coliform. All tests for Total Coliform were non-detect within the Quintero water distribution system.

Peoria has replaced equipment at the Quintero water campus to increase the chlorine concentration leaving the facility and has implemented a routine flushing program within the community. The low chlorine levels were probably due to minimal use within the community. The increased chlorine level and flushing should minimize the probability of reoccurrence.

For more information contact the EPA Safe Drinking Water Hotline: (800) 426-4791 or Peoria’s Environmental office at waterquality@peoriaaz.gov or call 623-773-7286.  

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