Lead In Drinking Water

Introducing new resources to help you reduce the health effects of lead on you and your family.

 

Overview

  • Drinking water is one source of exposure to lead, which can cause serious health concerns, particularly for children.
  • The 1972 Safe Drinking Water Act and numerous other laws have reduced lead exposure through tap water by 1) reducing the amount of lead in the pipe materials conveying water, and 2) buffering (adjusting the pH and then monitoring) water quality to make it less likely to absorb lead (and copper) from water pipes.  
  • Overall, public exposure to lead in tap water has decreased significantly in response to these laws. Nevertheless, lead can enter drinking water when water flows through certain pipes, fittings, solder, and other lead-bearing plumbing materials.   
  • The 2021 Lead and Copper Rule Revisions Act (LCRR) requires commitments from drinking water utilities intended to further reduce lead exposure and protect public health.   Foremost of these is to develop, maintain, and promote a database of the materials composing the water service line for each customer served.
  • This is a federal law developed in response to lead-poisoning crises in Flint, MI and other high-profile locations.  
  • This web page explains the City of Arlington’s water distribution system and provides access to its Water Service Lines Database, a self-inspection and reporting tool for customer-side service lines, and educational resources for understanding the health effects of lead and how to reduce your lead exposure in drinking water.

Background

Water has the capacity for acquiring numerous contaminants and other materials from its environment, including lead and copper in service lines.  The 2021 law, Lead and Copper Rule Revisions Act (LCRR), requires water utilities to develop, maintain, and promote a database of the materials composing each water service line, including both the utility-side and the customer-side of the water meter (see the sketch below).  Because of the health risks of lead, including lead in drinking water, LCRR directs that all customers and the public must have access to the database.  In addition, all customers with service lines that are not proven to be non-lead) must be notified in writing annually until such time that the service line is either replaced or demonstrated to be non-lead.   

Lead in water 2


What’s in it for me?

  1. The database—and this web page—are intended as a first step to understanding and minimizing the effects of lead in drinking water on your personal health.  This effort starts close to home—your water tap.  
  1. While the quality of the water we distribute is similar in many ways for all of our customers, lead and copper are two parameters that may vary from one customer to the next.   This is because water may absorb these metals if they are present in the service line and plumbing of each building.   What’s in your water may not be the same as your neighbors’ water.
  1. The City has determined that there is no significant lead in the nearly 6,000 water service lines maintained by the City.  Service lines from the meter to a structure are privately owned and are the Customer’s responsibility; the material of these lines is more difficult to identify from records research.  Our review indicates that all but about 1,000 customer-side service lines are lead-free.   While we suspect these service lines are also lead-free, we are unaware of the materials used.

Find out what material your water service line is composed of:


All service line materials must be grouped into four classes:  lead, galvanized downstream of lead, unknown, and non-lead.  Arlington’s preliminary inventory includes no lead services lines, and no galvanized service lines downstream of lead materials for any customers. All service lines are either non-lead or composed of unknown materials.  (Although not exhaustive, extensive installation records and a supply inventory since 1961 are consistently void of references to lead pipes and lead connectors used in services of any kind in the City.  Therefore, while the City must report service line records with Unknown materials, we also report these materials as “Unknown, but Unlikely Lead”.)

When you access the database, you will see a map with many icons representing each water customer served by the City, and a legend indicating the overall status of the service line—if either the City-side or the Customer-side service is unknown, the entire service line is classified as unknown.

Lead in Water 3

You can zoom in to your neighborhood or browse the City or type your address into the search bar.   You may find a map view such as the one below.  Blue squares represent non-lead service lines on both sides of the meter.  Gray diamonds represent unknown materials on at least one side of the meter. The two black circles within the diamonds and squares represent validation of each service line, this will be updated when the material of the service is confirmed.

Lead in water 4

Click on the symbol for your property of interest.  A pop-up window displays a summary of the inventory.

Lead in water 5

Self-inspection and Reporting Tool

If you are the owner of a structure with an unknown customer-side service line, or if you believe the database contains incorrect information, we need you to complete a service line inventory form online.  The form provides a self-guided tool for inspecting and reporting customer-side service line materials. Access the self-inspection and reporting tool here.  

Finding Your Service Line

  • Typical locations include interior walls of the: garage, basement, crawl space, utility room, mechanical room, or janitorial closet. The service line usually enters the side of the house closest to your water meter.
  • The pipe may protrude from and re-enter the wall, or you may see only a knob and valve on the enclosed wall. It may or may not be visible from the outside.
  • Do not check the pipes visible under sinks where they connect to faucets.
  • If your service line is not visible, contact the City for guidance at 360-403-3526.

Key to Identifying Service Line Materials

Typical Materials:Galvanized Iron/StealCopperPlasticLead
Photo Key:Lead in water 6Lead in water 7Lead in water 9Lead in water 10
Does a Magnet stick to it?YesNoNoNo
What color is it?Dull gray, or rustyNew penny, dull brown, bluish-greenBlack, blue, white, possible letteringDull, silver-gray
Is scratches with a coin or key. (do not hit or pierce)With difficultyFairly easily; scratch is shiny like a new pennyNot easilyEasily; scratch is shiny like a new nickel
Using a ruler, the outside diameter is?1" to 2"1/2" to 1"1 1/2" to 2"Varies; has a larger diameter bulb near end


Health Effects of Lead

Exposure to lead in drinking water can cause serious health effects in all age groups.  There is no safe blood lead level that has been identified for young children.  Infants and children can have decreases in IQ and attention span. Lead exposure can lead to new learning and behavior problems or exacerbate existing learning and behavior problems. The children of women who are exposed to lead before or during pregnancy can have increased risk of these adverse health effects. Adults can have increased risks of heart disease, high blood pressure, kidney or nervous system problems.” [40 CFR § 141.85(a)(1)(ii)]

How do I reduce my exposure to lead in drinking water?

The best way for you to know your risk of exposure is to identify the potential sources of lead in service lines and household plumbing.  If you suspect there may be lead in your drinking water, follow these steps to minimize your exposure.

  1. Know the materials used in your water service line and your internal plumbing.
  2. Run your water for about one minute) prior to drinking or cooking.
  3. Use cold water when hot water is not needed.
  4. Clean your faucet aerator to remove sediment.
  5. Have your water tested at any of the labs that accept public samples.
  6. Use a filter certified to remove lead and maintain it properly.
  7. Replace your customer-side water service line and any plumbing fixtures found to contain lead.

Resources

City of Arlington

Resources Location
City of Arlington Water Services Click to access the database
Customer-side self-inspection and reporting app—for updating unknown materials and reporting database errorsClick to access the self-inventory form
Public Notice of City of Arlington Water Services Database https://arlingtonwa.gov/310/Public-Notices-Hearings
City of Arlington Public Works Staff360-403-3526 or Utilities@arlingtonwa.gov 


 Other Sources