Pure water
Pure joy

We take great pride in our vision and experience to ensure that all of your water utility service needs are met with vigor, enthusiasm and pride.

TOPS customers access all your account information, bill payment options and customer service needs from here

Si Enviro customers find your MUD, see payment options, establish new service and more


Si Enviro customers pay your bill online using our convenient online bill payment options

Check here for answers to the questions we hear most often

Freeze Protection Check List

Take the necessary steps to protect your house during the cold weather.  We recommend contacting a master plumber for expertise on the best way to protect your pipes in your home.  We have posted a “Freeze Protection Check List” from a master plumber on our website as just one example of the many references that are available.  Please find the recommendations that best relate to your situation and remember to be safe.


Committed to Quality

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Quality Tests Per Year
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Monthly Calls
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Service Trucks

Builder Services


We understand the expense involved in the start-up of a Master Planned Development and pride ourselves in the ability to assist in the success and growth of an endeavor that creates immense value in our local Houston communities. We’re an established and recognized leader in our industry with a dedicated Builder Services department

Operations and Maintenance Services

Maintaining your water and wastewater utility assets to extend their useful life is what we do best. We’re an established and recognized leader in our industry offering a broad range of O&M services

Online bill review and payments       

Meter Reading & Auditing

Billing, Collections & Remittance

24-hour Service & Repair Hotline


Preventative Maintenance


Repairs & Maintenance


Facility Operations


Utility Operations


Water Tapping


Professional Inspections


Regulatory Compliance


Storm Water Management