No health-based violations on EPA record since 2016.
Serves about 300 people (100 connections) with groundwater from its own wells, and buys water from Sienna Regional MUD.
From EPA's record for TX0790495. PurityMap is independent of Sienna Management District.
Are you this utility? Correct this listing →
No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →Sienna Management District's phone number on EPA record is 281-500-6050. Its mailing address is 202 CENTURY SQUARE BLVD, SUGAR LAND, TX 77478-3796.
According to EPA's record, Sienna Management District uses groundwater from its own wells, and buys water from Sienna Regional MUD.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Sienna Management District's latest lead and copper round, which ended in December 2025, was 1.4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Sienna Management District. Its phone number on EPA record is 281-500-6050. Its mailing address on EPA record is 202 CENTURY SQUARE BLVD, SUGAR LAND, TX 77478-3796. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.