Relating to notification procedures concerning groundwater contamination.

SB 1663 requires Texas water authorities to notify affected parties within 30 days of discovering groundwater contamination. It mandates written or electronic notice (via mail, email, or door notice) to private well owners potentially impacted, nearby groundwater conservation districts, and residents living within one mile of the contamination site. The bill updates Texas Water Code Section 26.408(b) to establish these specific notification procedures. This law takes effect September 1, 2025, directly affecting well owners, local water districts, and nearby residents in contamination cases.