Stage 1 of Drought Contingency Plan in Effect

Dear Water Customer,

On September 22, 2021 Harris County MUD No. 418 rescinded Stage 2 of its Drought Contingency Plan (“DCP”). With the recission of Stage 2, Stage 1 of the DCP went back into effect. The target for Stage 1 is a 10% water usage reduction through voluntary means. At this time, the goal has been achieved and the DCP is no longer in use.

Though the restrictions are no longer in place, we encourage residents to continue irrigating on alternate days (Even addresses Sunday, Tuesday, Thursday; Odd addresses Saturday, Monday Wednesday). For more information on how to program your sprinkler controller, please visit https://www.youtube.com/watch?v=oUoir-wk2Yc or your MUD District websites (hcmud419.com or hcmud489.com).

The District would like to thank residents for their cooperation.

Please reach out to Inframark’s Customer Service department at (281) 579-4500 if you have any questions or concerns.

Bridgeland System Conversion – 9/27/2021

Update: September 28, 2021

Please be advised, due to unexpected field issues the conversion has been pushed back. More details and a date for reschedule is currently underway. Thank you for your patience! Should you have any questions, please call Inframark at (281) 579 4500.


Dear Harris County MUD #419 & 489 Resident,

The Harris County MUD 418 public water system, (PWS) ID 1013329, will be converting four sections of Harris County MUD #489 served by Water Plant #1 to Water Plant #2. Please be advised, Water Plant #1 utilizes a combination of groundwater and surface water, while Water Plant #2 operates off groundwater only.

The main difference between the two sources is the required disinfectant. Surface water requires chloramines (a mix of chlorine and ammonia), while groundwater calls for free chlorine. Public water systems are required to properly disinfect their water and maintain an adequate disinfectant residual in the distribution system. Free chlorine is widely used as a disinfectant because it persists for long periods, while also limiting the formation of disinfection by-product contaminants.

The conversion will take place on Monday, September 27, 2021, and is meant to provide relief on the demand at Water Plant #1. During this period, you may experience taste and odor changes associated with this type of disinfectant conversion that will resolve within two weeks.

The sections that will be affected include:

  • Mission Tejas
  • Enchanted Rock
  • McKinney Falls
  • Goose Island

Please see attached map with the affected area highlighted in yellow. Additionally, Water Plant #1 service area is highlighted in blue, and Water Plant #2 service area is highlighted in green.

Please reach out to Inframark’s Customer Service at (281) 579-4500, should you have any questions or concerns.

Bridgeland System Conversion – 9/24/2021

Dear Harris County MUD #419 Resident,

The Harris County MUD 418 public water system, (PWS) ID 1013329, will convert the disinfectant used in the distribution system from chloramine to free chlorine in specific sections of Harris County MUD 419. The conversion will take place on Friday, September 24, 2021, and is meant to provide some relief on the demand at Water Plant #1. During this period, you may experience taste and odor changes associated with this type of disinfectant conversion.

Public water systems are required to properly disinfect their water and maintain an adequate disinfectant residual in the distribution system. Free chlorine is widely used as a disinfectant because it persists for long periods, while also limiting the formation of disinfection by-product contaminants.

The sections that will be affected include:

  • Mission Tejas
  • Enchanted Rock
  • McKinney Falls
  • Goose Island

Please see attached map outlined in red and blue.

Please reach out to Inframark’s Customer Service at (281) 579-4500, should you have any questions or concerns.