TCEQ requires that DBP tests be conducted by the State, not the City, by a state-selected contractor to ensure integrity of the testing. Samples for DBP in Allen are drawn at eight sample sights each quarter, totaling 32 sample sites per year, in accordance with Texas Commission on Environmental Quality (TCEQ) procedures. The contractor submits samples to a state-certified laboratory for analysis. City staff does not touch these samples. In order to view results, City staff must go to the same Texas Drinking Water Watch website available to the general public. Every test result from every sample point for the last two years is available on the site.
To use the website you need to know Allen’s Water System Number (TX0430025), water system name (City of Allen) and county (Collin). After entering this information, click on our water system number. You can view DBP results by clicking on either the LRAA (TTHM HAA5) or the TTHM HAA5 Summary Tabs.
The City’s annual Water Quality Report summarizes TTHM and HAA testing results compared to the EPA/TCEQ standard.