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North Water District Laboratory Services, Inc.

Main Laboratory
8725 Fawn Trail, The Woodlands, Texas 77385
  • Phone: 936.321.6060
  • Toll-Free: 866.415.1819
  • Fax: 936.321.6061

North Water District Laboratory Services, Inc.

Toxicology Laboratory
888 West Sam Houston Parkway South Texas 77385, Suite 110,Houston, Texas 77042
  • Phone: 713-977-1500
  • Fax:713-977-9233