Skip to Content
Questions or Comments: PWSLCR@tceq.texas.gov

Drinking Water Lead and Copper Program

The Lead and Copper Rule (LCR) protects public health by minimizing lead and copper levels in drinking water, primarily by reducing corrosion of plumbing materials. This rule applies to all community water systems (CWSs) and non-transient non-community water systems (NTNCs). On this page, find a link to Texas Drinking Water Watch (DWW), instructions, guidance, forms and information for public water systems (PWSs), laboratories, and the public.


Lead & Copper Tap Monitoring

These lists contain the PWS's scheduled to collect Lead and Copper Tap samples.

Water Quality Parameter Monitoring

These lists contain the PWS’s scheduled to collect Water Quality Parameter (WQP) samples.

The information below includes the Environmental Protection Agency (EPA) sampling guidance along with PWS instructions and homeowner instructions. The PWS recommendations and guidance are to assist you in your sampling events.

Table 1: Action Levels and Reduced Monitoring Levels for Lead and Copper

  LEAD  COPPER 
Action Level (AL)0.015 mg/L1.3 mg/L
Reduced Monitoring Level (RML)0.005 mg/L0.65 mg/L

Table 2: Number of Tap Samples Required for Initial/Routine and Reduced Monitoring based on population served.

System Size (number of people served)Number of Sites for Initial/Routine MonitoringNumber of Sites for Reduced Monitoring (1YR, 3YR, or 9YR)
More than 100,00010050
10,001 to 100,0006030
3,301 to 10,0004020
501 to 3,3002010
101 to 500105
100 or fewer55

Initial Sampling: Systems must complete two (2) rounds of consecutive six-month sampling. The monitoring periods for collection are:

6M1: Jan 1 - June 30, analytical results are due to TCEQ no later than July 10

6M2: July 1 - Dec 31, analytical results are due to TCEQ no later than Jan 10

Reduced Sampling: Systems that have successfully completed their two rounds of initial sampling may be reduced to 1 year or 3-year sampling based on their 90th percentile lead and copper sampling during their initial sampling period. Reduced monitoring has a second requirement of a seasonal sampling period.

Reduced: Jun 1 - Sept 30, analytical results are due to TCEQ no later than Oct 10

Lead and Copper Tap Sampling Forms

PWSs are required to use these forms when conducting Lead and Copper Rule sampling. All sampling site addresses should be reviewed before sampling and updated if needed.

Sample Site Selection and Materials Survey

Lead and Copper Chain of Custody

Lead Consumer Notice

Treatment Change Notification

Water Quality Parameters (WQPs) help assess how corrosive water is in the distribution system. Public water systems (PWSs) with over 50,000 people, new PWSs (regardless of population), and those exceeding action levels (ALs) must test for WQPs.

WQP Analytes

Table 1: Analytes Tested for WQPs.

pHConductivityIronSulfate
AlkalinityCalciumManganeseTotal Dissolved Solids (TDS)
TemperatureChlorideSodiumHardness

        *Also, an inhibitor such as orthophosphate and/or silica, if added.

Water Quality Parameter Sampling Requirements

Table 2: Number of Water Quality Parameter samples required for Initial/Routine and Reduced Monitoring based on population served.

System Size (number of people served)Number of Sites for Initial/Routine monitoringNumber of Sites for Reduced monitoring
More than 100,0002510
10,001 to 100,000107
3,301 to 10,00033
501 to 3,30022
101 to 50011
100 or fewer11

***The number of samples listed above are sampled quarterly - twice within a six-month monitoring period.

6M1 WQP samples (Results due to TCEQ by July 10th): Collect half the posted sample requirement in each quarter of the 6M monitoring period.

  •  Quarter 1 (January 1st – March 31st) 
  •  Quarter 2 (April 1st – June 30th) 

6M2 WQP samples (Results due to TCEQ by January 10th): Collect half the posted sample requirement in each quarter of the 6M monitoring period.

  •  Quarter 3 (July 1st – September 30th) 
  •  Quarter 4 (October 1st – December 31st)

For TCEQ to utilize sample analysis data, each sample must be analyzed by a National Environmental Laboratory Accreditation Program (NELAP) Accredited laboratory or a TCEQ approved laboratory utilizing approved/accepted sampling methods and adhering to the Public Water System Supervision (PWSS) Program Quality Assurance Project Plan (QAPP).

  • Allowable Analytical Methods for LCR and WQP Compliance Samples: This list contains the allowable laboratory analytical methods for lead and copper and water quality parameter compliance samples.
  • Please note that Initial and Routine WQP samples, including field measurements for pH and temperature, must be collected in the presence of an individual holding a valid water operator's license. If a PWS is unable to collect these field measurements, a TCEQ approved laboratory can be contracted to collect these samples. 

Lead and Copper Tap Sampling

Lead and copper samples must be analyzed by a laboratory that is NELAP accredited in the "Drinking Water" matrix using an EPA approved drinking water analysis method.

Water Quality Parameter Sampling

Water quality parameter samples must be analyzed by a laboratory that is NELAP accredited in the "Drinking Water" matrix or a TCEQ approved laboratory using acceptable drinking water sampling methods.

Texas Drinking Water Public Laboratories Maps

TCEQ has developed the following maps to help you locate NELAP accredited public laboratories across the state of Texas that offer lead and copper or water quality parameter testing. Once a laboratory near you has been identified, utilize their contact information to confirm their address, sample drop off hours, and prices. 

Action levels for lead (0.015 mg/L) and copper (1.3 mg/L) are based on the 90th percentile calculation. If a PWS exceeds these levels, it must conduct water quality parameter sampling at entry points and distribution, as well as lead and copper sampling at entry points and taps. The PWS uses these results to recommend source water treatment, designate optimal corrosion control treatment, and conduct a corrosion control study. Exceeding the lead action level also requires Lead Public Education (LPE) delivery and posting.

***For a diagram depicting the timeline of these events, please continue to the Action Level Exceedance (ALE) Highway.

Lead Public Education

Lead Public Education Guidance

Treatment Recommendations and Certifications after All Action Level Exceedances

Optimal Corrosion Control Treatment Resources

Texas Drinking Water Watch holds the information for public water systems and is open to the public. Use this database to view sample results, schedules, violations, and public notice due dates.

For more information, please go to the TCEQ Lead and Copper Rule Revisions and Lead and Copper Rule Improvements (LCRR) webpage.

The Environmental Protection Agency (EPA) announced final revisions to the National Primary Drinking Water Regulations for lead and copper under the authority of the Safe Drinking Water Act on December 16, 2021. More information from EPA on the LCRR can be found on EPA’s Review of the National Primary Drinking Water Regulation: Lead and Copper Rule Revisions (LCRR) webpage. 

EPA also announced an additional update to lead and copper rules called Lead and Copper Rule Improvements (LCRI), to strengthen key elements of LCRR. According to EPA, finalization of this additional rulemaking is expected prior to October 16, 2024. 

On November 30, 2023, EPA announced the proposed Lead and Copper Rule Improvements (LCRI) and on December 6, 2023, EPA published the proposed LCRI in the Federal Register . 

TCEQ is offering a free statewide program to help eligible participants conduct voluntary sampling and analysis for lead in drinking water at their schools and childcare facilities.


Helpful Links and Contact Information

PWSLCR@tceq.texas.gov

TCEQ, Lead and Copper Program
P. O. Box 13087,MC-155
Austin, TX 78711-3087
Phone (512) 239-4691 Fax (512) 239-6050

Lead and Copper YouTube Channel

Lead and Copper Regulations Texas Administrative Code §290.117

TCEQ's Financial, Managerial, and Technical (FMT) Assistance program offers free financial, managerial, and technical assistance to help public water and wastewater systems comply with regulations.

TCEQ's Public Notice Language for Drinking Water Compliance