Humble approves school water conservation partnership with Harris-Galveston district

Humble City Council has approved a partnership that turns school water lessons into a tool for managing one of Harris County’s most persistent growth problems: groundwater use and subsidence. Under the agreement with the Harris-Galveston Subsidence District, the city will sponsor classroom conservation programming and receive groundwater credits that count toward its water-use strategy.

The deal, approved June 12, runs through the end of the 2026-27 school year and allows as many as 450 sponsorships. Humble will pay $40 per sponsorship, and each one will generate a credit equal to 84,000 gallons of groundwater. City Manager Jason Stuebe said the arrangement is expected to strengthen conservation awareness by supporting school-based education.

For the district, the partnership fits a larger mandate that dates back to 1975, when the Texas Legislature created the Harris-Galveston Subsidence District as the first district of its kind. The agency regulates groundwater withdrawal in Harris and Galveston counties to address subsidence, the sinking of land that can worsen flooding and drive up the cost of maintaining roads, pipes and other infrastructure as the Houston region grows.

The district will coordinate the program with area schools and provide curriculum materials, home plumbing retrofit kits, teacher training and support documents so educators can use the lessons in the classroom. Its school program, now called H2O LAB!, is offered to third through sixth grade classrooms in Harris, Galveston and Fort Bend counties at no cost to teachers or students. The program began in 1994 under the name WaterWise.

The credit structure gives the agreement more than symbolic value. HGSD says each sponsorship produces a Series B groundwater credit that can be used for up to 30 percent of a permittee’s total water demand and expires 20 years from issuance. The district also increased the sponsorship cost to $40 effective Jan. 1, 2026, matching the price in Humble’s agreement.

The scale of the district’s school outreach shows why the city’s participation matters. HGSD says H2O LAB! reached nearly 20,000 students in 220 schools during the 2023-24 school year and nearly 28,000 students in 276 schools in 2024-25. The district said those 2024-25 kits could save 9,736 gallons per student if fully installed or used, with annual water savings potential of more than 272 million gallons.

In a fast-growing corner of Harris County, the agreement links a practical city policy to a longer-term civic lesson: how daily water use in classrooms and homes connects to groundwater demand, subsidence and the region’s future water security.