Environmental Systems Service, Ltd. (ESS) offers quality services in the fields of environmental consulting and testing, water and wastewater treatment and analyses, and food and dairy testing. As a privately held company, ESS offers the benefit of unbiased, independent consulting and analyses.


Environmental Systems Service, Ltd. (ESS) is currently open with extra precautions in place to protect our employees and customers from potential exposure to COVID-19 (Coronavirus).


The holidays are upon us and ESS will be closed the following days:
Thanksgiving…………Thursday, Nov 25 & Friday, Nov 26, 2021
Christmas……………. Friday, December 24, 2021
New Year’s…………… Friday, December 31, 2021
Please refer to the following sample collection guidelines:
 If your site requires monthly samples…
Please collect your samples early in November and December. Please avoid collecting your monthly samples the weeks of November 22nd and December 20th.

 If your site requires weekly samples…
o For the week of Thanksgiving: Please deliver your samples by 2 pm on Wednesday, November 24th.
o For the week of Christmas: Please deliver your samples by 2 pm on Thursday, December 23rd.
o For the week of New Year’s: Please deliver your samples by 2 pm on Thursday, December 30th.

 We will not be setting BODs up on Monday, December 20th (Please keep this in mind when collecting samples as we are trying to prevent set-ups this day because they will need to be read-out on Christmas Day. Please call the lab to coordinate.)

 BOD’s have a 48 hour holding time. (DO NOT hold samples; Please call the lab to coordinate.)

 Drinking water coliform bacteria samples (BACTs) will be surcharged on Wednesday, November 24th, Thursday, December 23rd and Thursday, December 30th.

If you need to make special sampling arrangements, or if you have any further questions, please call (540) 825-6660.

Environmental Services

Providing consulting and operation services to water and wastewater industries.

Environmental Laboratory

Water and wastewater testing for permit requirements and process improvements.

Residential Water Testing

Certified analysis of water samples for informational purposes or state requirements.

Food & Dairy Laboratory

Independent testing conducted on food and dairy products to confirm adherence to standards and quality assurance.

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Environmental Services

The Environmental Services Division of ESS provides a broad range of programs to include initial assessments, monitoring strategies, field sampling, and corrective actions. With a staff of environmental scientists, biologists, and sampling technicians, ESS has the ability to evaluate client requirements and develop a strategy designed to address those specific issues.

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Laboratory Services

The Laboratory Services Division of ESS serves the environmental, water, food and dairy industries. Performing both microbiological and chemical testing, our laboratory staff is equipped to handle a variety of analytical needs. With a great emphasis on quality control and sample integrity, clients can rely on accurate results in a timely manner.

Corporate Office and
Environmental Services

218 North Main Street
Culpeper, VA 22701

Toll Free: 1-800-541-2116
Phone: 540-825-6660
Fax: 540-825-4961


Laboratory Services
218 North Main Street
Culpeper, VA 22701
Phone: 540-825-6660
Fax: 540-825-4961

500 Stone Street
Bedford, VA 24523
Phone: 540-586-5413
Fax: 540-586-5530

Country Water Systems
123 West Spencer Street
Culpeper, VA 22701

Phone: 540-825-2781

Office Hours
Monday – Friday: 8am – 5pm
(Emergency Service Available)