What is required in the 2027 LCRI service line inventory?

Water systems must submit a comprehensive service line inventory including connectors, identify lead, GRR, or unknown service lines, submit a replacement plan, and provide a list of all schools and childcare facilities served by the system.

What is the due date for annual resident notifications?

Notifications must be sent annually by July 1 unless state rules specify otherwise. With 120Water, we help automate your compliant letters and track delivery.

What counts as an 'unknown' service line under LCRI?

Lines without a confirmed material classification must be marked as unknown. 120Water's water compliance platform helps document historical data, verify materials, and manage field inspections.

What states allow statistical approaches to verification?

While state rules differ, 120Water guides your team through which statistical methods are permitted and how to apply them correctly.

What records can be used to classify service line materials?

Approved records include construction codes, plumbing permits, tap cards, installation records, billing records, and previous sampling/inspection data.

What is the lead ban date and how does it affect inventory?

The 1978 lead ban marks a key cutoff for determining probable lead materials. Homes built after the ban are more likely to have non-lead lines.

LCRI compliance

Prepare and plan for compliance.

120Water helps you stay ahead of the EPA's Lead and Copper Rule Improvements (LCRI) with automated workflows, compliant communications, and real-time public transparency dashboards.

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LCRI solutions in action

Clearing the pipes: Caldwell, Idaho’s journey to lead-free water

To meet new lead inventory requirements, the City of Caldwell partnered with 120Water to build a complete, accurate service line inventory across nearly 26,000 lines.

With automated resident outreach, digital services, and asset data, Caldwell verified more than 18,000 non-lead lines – dramatically shrinking unknowns and strengthening compliance.

25,981

Service lines in question

18,223

Service lines marked non-lead

74,000+

Population served

Evolve your compliance strategy

Managing the complexities of LCRI doesn’t have to be complicated. 120Water gives you the platform and the automation you need to keep programs moving and communities informed.

Map with numbered blue circles highlighting service lines by address in Asheville downtown area.

Share progress confidently

Our Public Transparency Dashboard gives you a hub to share information with customers, building greater trust with your community.

Two water quality program cards with a white background on green; one card has a checklist with fill, secure, and mail steps; the other card is a door hanger with a survey request.

Communicate clearly

Customize pre-built letters, postcards, and self-mailers to connect with the public and meet EPA and state requirements.

Urban street map labeled Prediction Map with numerous red and green dots scattered across roads and buildings.

Stay data-driven & state approved

Verification methods, predictive modeling, and compliance reviews with our team keep programs on track and in compliance with state requirements.

Here’s how it works

Send cost-efficient surveys to households with unknown service lines.

Communications dashboard showing 2,154 letters sent with a blue circular chart, 433 letters downloaded with a yellow-green circular chart, and inventory notifications progress bars with 14 of 150 letters completed and 81 of 150 letters ready to send.

Trigger annual notifications automatically when lead service lines are identified.

Modal window titled Send Communication with a message about annual notification for unknown service lines to 2,312 locations and a Send button.

Send out sampling kits, track results, and send exceedance notices when needed.

Table titled Samples showing columns for ID, Address, Kit ID, Status, Draw, and Primary Analyte, with several rows highlighting status as Invalidated or New.

Submit reports to the state in minutes – in the required format, every time.

Keep residents and regulators informed with your Public Transparency Dashboard.

Digital map titled 'Public Transparency Dashboard' showing numbered circles indicating service lines across Asheville, including landmarks like Asheville YMCA and Pack Square Park.

Your guide through the LCRI journey

LCRI is complex and evolving, with milestones extending through 2037. Whether you’re preparing for annual notifications or building a replacement strategy, 120Water’s asset compliance software helps you stay ready for every stage.

How 120Water helps you get there

Stay compliant and on schedule
Automate public notifications
Streamline data collection and verification
Build public trust with transparent reporting
Submit reports and ceritifcations to your state

Contact our Team

Oct. 16, 2024 – Nov. 1, 2027

LCR & LCRR Requirements:

Notify residents with lead, GRR, or unknown service lines within 30 days of submitting the initial SLI and annually thereafter.
Issue Tier 1 public notice to all customers within 24 hours of a lead Action Level Exceedance (ALE) at 15 ppb.
Continuously update the SLI to reflect updated service line materials, including connector materials.
Include SLI access instructions and any applicable LCRR updates.

Nov. 1 2027

LCRI Compliance Date

LCRI requirements are now in effect and water systems will need to:

Submit a comprehensive SLI, including connectors
If any lead, GRR, or unknown service lines are identified, submit Replacement Plan and make it publicly accessible
Submit a list of all schools and childcare facilities served by the system.

after Nov. 1, 2027

Submit annual updates of baseline inventory (1/30/2029 and each year after)
24-hour notice (Tier 1) to all customers following Pb ALE at lower 10 ppb level
Replace LSL/GRRs at 10% per year
Begin school and childcare lead sampling program
Send annual notices to customers with LSL, GRR, or unknowns
Risk mitigation following service line replacements or disturbances
Additional sampling at compliance tap sampling sites >10 ppb Pb
Update compliance sample sites based on new tiering, 1st and 5th liter Pb sampling at LSL sites
Sample upon request at LSL, GRR, or Unknown sites
Tap sample results to customers within 3 business days of receiving results
Additional corrosion control requirements

Dec. 2034

Complete validation requirements of “non-lead” service lines

Dec. 2037

Complete LSL/GRR replacement requirements
Verify all unknown service lines