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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 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.

Water Quality Parameter Sampling Instructions and Guidance

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.

Water Quality 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.

Texas Drinking Water Watch 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.

On December 16, 2021, EPA announced next steps to strengthen the regulatory frameworkExit the TCEQExit the TCEQ on lead in drinking water. Following the agency’s review of the Lead and Copper Rule Revisions (LCRR) under Executive Order 13990, EPA has concluded that there are significant opportunities to improve the rule to support the overarching goal of proactively removing lead service lines and more equitably protecting public health.

In a Federal Register Notice, EPA announced that the LCRR will go into effect to support near-term development of actions to reduce lead in drinking water. At the same time, EPA will develop a new proposed rulemaking to strengthen key elements of the rule. The agency anticipates finalizing the forthcoming Lead and Copper Rule Improvements (LCRI) prior to October 16, 2024, the initial compliance date in the LCRR.

Helpful Links and 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

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

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