CITY OF TOLEDO WATER TREATMENT PROCESS PROTECTS DRINKING WATER FROM LEAD
Toledo provides safe drinking water for customers from the plant to the tap.
The City of Toledo distribution lines are made of steel, iron, and concrete. Drinking water may also come into contact with some services that are made of other materials, such as older lead plumbing.
Toledo uses a process at its water treatment plant to inhibit corrosion and prevent lead and copper from entering the distribution system. Orthophosphate and polyphosphates are fed in small amounts to stabilize water quality and minimize corrosion in Toledo’s drinking water system.
This process creates a protective coating on the inside of the piping to protect the water supply from leaching any harmful material.
Regulations regarding lead and copper
The EPA Lead and Copper Rule (1991) requires water treatment plants to monitor drinking water at customer taps. If lead concentrations exceed an action level of 15 ppb or copper concentrations exceed an action level of 1.3 ppm in more than 10% of customer taps sampled, the system must undertake a number of additional actions to control corrosion. Toledo is in compliance with the EPA regulations on Lead and Copper.
We are required to perform tests and report results related to lead and copper control to the Ohio EPA twice per year. The parameter levels are in accordance with a 1991 OEPA approved corrosion control study. Toledo’s water treatment plant is operated at all times to maintain parameters at or above the safe level to protect from lead and copper leaching into our water.
If the action level for lead is exceeded, the system must also inform the public about steps they should take to protect their health and may have to replace lead service lines under their control. Toledo water data is provided each year in the Consumer Confidence Report which can be found at /media/2697/ccr-2014-Mail-it-Final.pdf
Posted by Stacy Weber on Thursday, January 21, 2016.