EDF Health

Selected tag(s): lead service line inventory

Where are Illinois’ lead pipes? Chicago Water has nearly 60%, and small systems don’t know.

Tom Neltner, J.D., Chemicals Policy Director and Lindsay McCormick, Program Manager.

Chicago is the epicenter for lead service lines (LSLs) in the United States. In a report submitted to Illinois Environmental Protection Agency (IEPA) in April, Chicago Water reported having 392,614 LSLs – 75% of the total service lines in its water system that serves 2.7 million people living in the city and the city’s 125 suburbs. The number of LSLs is over three times higher than any other city. For additional context, this number represents 58% of the known LSLs in Illinois and 6% of the estimated 6.1 million LSLs in the country.

Chicago Water also reported an additional 120,760 service lines as unknown material that may be lead. Only 7,299 (2%) of its total service lines are made of something other than lead.

These numbers are based on the second year of mandatory reporting that IEPA makes publicly available. Earlier this year, we summarized the first year of reporting. In the second year of reporting, IEPA improved the program by allowing CWSs to separately report lines of unknown material where the utility was confident they were not LSLs – most likely because the lines were installed after the date the CWS stopped allowing use of lead. So the remaining lines of “unknown material” were more likely to be lead. In addition, all community water systems (CWSs) in the state reported in the second year.[1] Given these improvements, we looked more closely at the data.

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Denver Water proposes innovative plan to remove an estimated 75,000 lead service lines in 15 years

Lindsay McCormick, is a Program Manager. Tom Neltner, J.D., is the Chemicals Policy Director.

Update (9/10/19): Denver Water is currently taking comment on its final proposal through October 10, 2019.  Denver Water will present feedback received to EPA and CDPHE. If you would like to weigh in, you can submit comments here.”

Yesterday, Denver Water’s board approved its proposed “Lead Reduction Program Plan” to fully replace the estimated 75,000 lead service lines (LSLs) in their system within 15 years.  The plan is an innovative solution that will remove the primary source of lead within Denver Water’s system, while avoiding the use of orthophosphate that can further exacerbate nutrient pollution problems in rivers, streams and oceans, an issue EDF’s Ecosystems team is working hard to solve.

As proposed, Denver Water would fund full replacement of LSLs through water rates, bonds and sales of new connections to the system, hydropower production and other sources rather than have individual property owners contribute.  In addition, the utility’s proposal to provide filters to residents until their LSLs are replaced represents a model other communities should consider based on the effectiveness of their ongoing pilot.  Before implementing the plan, Denver Water will need to receive approval from the Environmental Protection Agency (EPA).

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ASDWA releases useful guidance to help states develop lead service line inventories

Tom Neltner, J.D., Chemicals Policy Director and Lindsay McCormick, Program Manager

As we have explained in past blogs, it is critical that states have rough estimates of how many lead service lines (LSLs) each drinking water utility in the state may have in order to develop sound policy decisions and set priorities. Congress recognized the importance of LSL inventories when it directed the Environmental Protection Agency (EPA) in the America’s Water Infrastructure Act of 2018 to develop a national count of LSLs on public and private property in the next round of the 2020 Drinking Water Infrastructure Needs Survey. States have a crucial supporting role in the Needs Survey since it is the basis of allocating State Revolving Loan Funds to the states.

This month, the Association of State Drinking Water Administrators (ASDWA) released a useful guidance document to help states develop LSL inventories. The guidance builds on the lessons learned from:

  • Mandatory surveys conducted by California, Illinois, Michigan, and Wisconsin;
  • Voluntary surveys conducted by Indiana, Massachusetts, North Carolina, and Washington; and
  • Responses to requests for updated Lead and Copper Rule (LCR) service line preliminary materials inventories conducted by Alabama, Louisiana, Kansas and Texas.

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EDF analysis: Lead service lines in Illinois communities

Tom Neltner, J.D.Chemicals Policy Director

Building statewide, comprehensive inventories of lead service lines (LSLs) in community water systems (CWSs) is a critical part of any effort to eliminate lead pipes. With a solid inventory, states can conduct a credible needs assessment and engage the public in supporting community efforts to replace LSLs.

In January 2017, the Illinois legislature passed a law designed to reduce children’s exposure to lead in drinking water. It included a requirement that CWSs submit annual reports to Illinois Environmental Protection Agency (IEPA) regarding a “water distribution system material inventory” by April of each year. EDF sees Illinois’s approach to developing an inventory as a model to be considered by other states because it:

  • Requires all CWS to report (unlike Indiana which had a well-designed one-time voluntary survey but only a 57% response);
  • Covers the entire service line (unlike California which ignored the portion of the service line on private property); and
  • Requires annual updates to track progress, especially in reducing the number of service lines with unknown materials (unlike Michigan which requires updates only every five-years).

In August 2018, IEPA released a summary of the first year submissions and has updated it several times. IEPA indicated that 95% of CWSs submitted reports and provided totals of each type of piping material reported with 414,895 LSLs and 1,504,748 of unknown material. At the time, the agency did not provide information on what each CWS reported.

Making totals public is important but does little to engage the public in understanding what the information means for their community. But earlier this week, IEPA published an online tool, which allows residents to search for their water system and download the data for individual reports of the types of materials currently reported by their water system.  EDF also received the information pursuant to a Freedom of Information request. Click here to see the data for all the CWSs in a spreadsheet. We also used an EPA database to identify the 84 CWSs that did not comply with the law.

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New study: Using interactive online tools to publicize lead service line locations and promote replacement

By Sofia Hiltner, Rainer Romero, Lindsay McCormick and Tom Neltner

EDF study evaluates interactive online tools in three Ohio cities that help users know which addresses have a lead service line.

In 2016, EPA called upon states to work with drinking water utilities to make publicly available the location of lead service lines (LSLs, the lead pipes that connect the main under the street to buildings) via maps or other mechanisms. Ohio led the way with legislation requiring more than 1,800 utilities to submit static PDF maps that showed where LSLs were likely to be present and then posting the maps online. Three cities in the state took the effort a step further to communicate the information to their customers by posting online tools. In 2016, Cincinnati posted an interactive map of LSLs modeled after one posted by Washington, DC earlier that year. The next year, Columbus posted an interactive map and Cleveland posted a search engine enabling anyone to check the service line material at an address.

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California Water Board makes misleading claim that only four water systems have lead lines

Tom Neltner, J.D.Chemicals Policy Director

[Update 12/14/18: The California Water Boards added a webpage providing more background for customers on the inventory requirement, including the clarification that “user service line” does not include the service line on private property. This clarification was also added to the Status Map webpage.]

The California Water Board posted the results of its statewide inventory of lead service lines (LSLs) in community water systems (CWSs) yesterday. They also became the first in the nation to post the results in an interactive online map. We are pleased to see the state take this important step, but are disappointed that the press release it sent out to announce the map’s launch undermines its efforts with misleading and confusing statements.

The central problem is that the press release fails to be clear that the inventory does not cover the portion of the service line between the meter and the home or building.  As a result, a CWS that removed all of the lead pipes between the main under the street and the meter but left them on private property was listed as having no LSLs. A customer would justifiably – but mistakenly – assume that LSLs were not an issue in their community.

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