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Drinking Water Lead and Copper Program

The Lead and Copper Rule 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 and non-transient non-community water systems. On this page, find a link to Texas Drinking Water Watch, instructions, guidance, forms and information for public water systems, laboratories, and the general public.

Texas Drinking Water Watch

Texas Drinking Water Watch (DWW) holds the information we have for your public water system and is open to the public. Use this database to view sample results, schedules, violations, and public notice due dates. 

2021 System Sample Schedules

Lead Copper Tap Monitoring

All community and non-transient non-community (NTNC) public water systems are subject to LCR monitoring requirements. Below are systems scheduled to monitor during the 6M1, and reduced 2021 monitoring periods including the number of required tap samples.

Water Quality Parameter Monitoring

A community and non-transient non-community water system may be subject to additional water quality parameter (WQP) monitoring requirements. Below are systems scheduled to monitor during the 6M1, and annual 2021 monitoring periods including the number of samples at each scheduled facility ID.

Sampling Instructions and Guidance

The Texas Commission on Environmental Quality (TCEQ) is including 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 and include the removal and cleaning of aerators, pre-stagnation flushing, and bottle configuration.

The information provided is to assist PWSs in finding a laboratory to perform the lead and copper analysis under the TCEQ National Laboratory Accreditation Program (NELAP). It is also for NELAP accredited laboratories assisting PWSs with lead and copper analysis.

  • Laboratories must deliver and accept only one liter unpreserved wide mouth laboratory-grade bottles. (30 TAC §290.117(h)(1))
  • First-draw tap samples should be received at the laboratory within 14 days after collection date so laboratories can preserve the samples. (30 TAC §290.117(h)(2)(E))
  • Laboratories cannot accept bottles for analysis without TCEQ Form 20683 - LCR Chain of Custody completely filled out and signed by the PWS representative. This form has the necessary information on it to determine first-draw samples and sampling sites or addresses.
  • Lead and copper samples MUST be analyzed by a laboratory that is accredited in the "Drinking Water" matrix using an EPA approved drinking water method in the following table.
Analyte Name EPA ASTM Standard Methods Hach Company

200.5, Rev. 4.2

200.7, Rev. 4.4

200.8, Rev. 5.4

200.9, Rev. 2.2

D1688-90 A

D1688-95 A

D1688-02 A

D1688-07 A

D1688-12 A

D1688-90 C

D1688-95 C

D1688-02 C

D1688-07 C

D1688-12 C

3111 B - 18th, 19th, 21st, 22nd eds.

3111 B-99 (online ed.)

3113 B - 18th, 19th, 21st, 22nd eds.

3113 B-99, B-04, B-10 (online eds.)

3120 B - 18th, 19th, 20th, 21st, 22nd eds.

3120 B-99 (online ed.)

8026, Rev. 1.2

10272, Rev. 1.2


200.5, Rev. 4.2

200.8, Rev. 5.4

200.9, Rev. 2.2

D3559-90 D

D3559-96 D

D3559-03 D

D3559-08 D

3113 B - 18th, 19th, 21st, 22nd eds.

3113 B-99, B-04, B-10 (online eds.)


How Many Samples Are Required and When

System Size

 (number of people served)

Number of Sites for

 Initial/Routine monitoring

Number of Sites for Reduced Monitoring:

1YR, 3YR, or 9YR

More than 100,000 100 50
10,001 to 100,000 60 30
3,301 to 10,000 40 20
501 to 3,300 20 10
101 to 500 10 5
100 or fewer 5 5

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 completed their two rounds of initial sampling can 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

Tap Water Lead and Copper Forms

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

Important information    TCEQ encourages public water systems to make available to the public any information regarding the location of lead plumbing, fixtures, and/or pipes including lead service lines. Methods to make this material publicly available include posting maps or other locational information on your system’s website, and adding into your Consumer Confidence Reports, Lead Consumer Notices, and Lead Public Education documents as applicable. TCEQ also encourages that the information be made available to your customers upon request.

LCR Action Level Exceedance

Action levels for lead and copper are based on a 90th percentile calculation. The action level for lead is 0.015 mg/L and 1.3 mg/L for copper. If a PWS exceeds either of the action levels, it is required to conduct entry point and distribution water quality parameter sampling, entry point lead and copper sampling, and tap water lead and copper sampling. The PWS uses the sample results to submit a source water treatment recommendation, an optimal corrosion control treatment designation, and a corrosion control study. Lead action level exceedances also require delivery and posting of Lead Public Education (LPE). Forms and guidance documents are shown below:

Water Quality Parameter Sampling UPDATE

Water Quality Parameters under the LCR are used to determine the corrosivity of the water flowing through the distribution system.  All PWSs with a population over 50,000, new PWSs of all populations, and any PWS who have exceeded the action levels are required to sample for water quality parameters (WQP). WQPs consist of pH, alkalinity, temperature, conductivity, calcium, chloride, iron, manganese, sodium, sulfate, total dissolved solids, hardness and an inhibitor such as orthophosphate, if added.

How Many WQP Samples are Required and When

System Size


Number of sites for

 Initial/Routine monitoring

Number of sites for Reduced monitoring:


More than 100,000 25 10
10,001 to 100,000 10 7
3,301 to 10,000 3 3
501 to 3,300 2 2
101 to 500 1 1
100 or fewer 1 1

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

TCEQ approved laboratories are not necessarily the same as the TCEQ NELAP accredited laboratories and have different approval requirements. Contact the TCEQ Laboratory Approval Coordinator for information.

Laboratory Information

  • TCEQ NELAP Accreditation ProgramAdobe Acrobat PDF Document: Laboratories accredited by the State of Texas under NELAP.
  • For information on acceptable sampling methods under the Lead and Copper Rule, please see Accepted Sampling MethodsExit the TCEQ.
  • 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.

  • Electronic Sampling Requirements: Contact the .

Additional Lead and Copper Rule Information

Additional information is available on the Environmental Protection Agency (EPA) website including health effects, guidance for public water systems, and regulations.

Lead Testing in Schools

Information for schools in establishing programs to prevent lead in drinking water.

LCR Contact Information

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

Assistance and Helpful Links

Lead and Copper Regulations Texas Administrative Code §290.117Exit the TCEQ

TCEQ's Drinking Water Watch holds the information we have for your public water system and is open to the public. This has contact information, sample sites, sample results, violations, and public notice due dates.

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