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Revised Total Coliform Rule (RTCR)

The Total Coliform Rule was revised to further protect human health. The rule went into effect on 4/1/2016 for all public water systems. All systems are required to submit sample siting plans prior to 4/1/16. Sample siting plan templates and instructions are available below.

PA RTCR Regulation Published

RTCR Webinar for Systems, Operators, and Consultants

You can view a recording of the October 19, 2016 webinar by choosing one of the following options:


One of the aspects of the RTCR is assessments. Public water systems may need to conduct a Level 1 or Level 2 Assessment depending on microbial sampling results. Please click here for information on how an assessment is triggered. If an assessment is required, the water system must use the appropriate DEP form:

Systems should use the EPA Guidance Manual called RTCR Assessments and Corrective Actions

Transient non-community systems, which generally do not require a certified operator for daily operation will need to find a certified operator to conduct a Level 2 assessment when triggered. Therefore, PA DEP intends to maintain a list of certified operators willing to conduct Level 2 Assessments for public water systems that do not have a certified operator. This list can be used by public water systems that have triggered a Level 2 Assessment under the Revised Total Coliform Rule to locate and hire a certified operator to conduct the assessment. If you are interested in being on this list, please complete the RTCR Level 2 Assessment Operator Survey:

Finding an Assessor for Systems without Certified Operators

Use the first document below to find available operators by county (there is a list for all 67 counties). The second link is a companion document that helps you understand what type of certified operator you will need to conduct an assessment at your water system. As you will notice in the certified operator lists, the last column has all of the individual’s certifications (class and subclasses) listed.

  1. Available Assessment Operators by County
  2. Operator Class and Subclass Definitions


Level 2 Assessment Training

PRWA and DEP are co-sponsoring training as follows:

Date Time Location Online Registration
Tuesday, April 4 9:00 AM to 3:00 PM
Registration 8:30 AM
New Stanton DEP Office
131 Broadview Rd.
New Stanton, PA 15672
Wednesday, April 12 9:00 AM to 3:00 PM
Registration 8:30 AM
PA DEP Southeast Regional Office
2 East Main Street
Norristown, PA 19401
Thursday, April 13 9:00 AM to 3:00 PM
Registration 8:30 AM
Ebensburg DEP Office
286 Industrial Park Rd.
Ebensburg, PA 15931
Wednesday, April 19 9:00 AM to 3:00 PM
Registration 8:30 AM
Brackenridge Borough
1000 Brackenridge Ave.
Brackenridge, PA 15014
Wednesday, April 19 8:00 AM to 2:00 PM
Registration 7:30 AM
Doylestown Township Community Center
425 Wells Road
Doylestown, PA 18901
Thursday, May 4 9:00 AM to 3:00 PM
Registration 8:30 AM
PA DEP Southeast Regional Office
2 East Main Street
Norristown, PA 19401

If you trigger an assessment, please review the Level 1 tutorials linked below.

Questions on other training available? Email:


There are four forms available depending on your system size and the number of sampling locations.


In addition to a sample siting plan, seasonal systems are required to submit start-up procedures for DEP approval prior to 4/1/16.  The following form and instructions provide a template and recommended start-up steps.