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PA Bulletin, Doc. No. 19-576



Availability of Technical Guidance

[49 Pa.B. 1965]
[Saturday, April 20, 2019]

 Technical guidance documents (TGD) are available on the Department of Environmental Protection's (Department) web site at The ''Technical Guidance Final Documents'' heading is the link to a menu of the various Department bureaus where each bureau's final TGDs are posted. The ''Technical Guidance Draft Documents'' heading is the link to the Department's draft TGDs.

Ordering Paper Copies of Department Technical Guidance

 The Department encourages the use of the Internet to view and download TGDs. When this option is not available, persons can order a paper copy of any of the Department's draft or final TGDs by contacting the Department at (717) 783-8727.

 In addition, bound copies of some of the Department's documents are available as Department publications. Check with the appropriate bureau for more information about the availability of a particular document as a publication.

Changes to TGDs

 Following is the current list of recent changes. Persons who have questions or comments about a particular document should call the contact person whose name and phone number is listed with each document.

Final TGD: Minor Revisions

DEP ID: 390-3301-001. Title: Cryptosporidia, E. coli, and Turbidity LT2ESWTR Laboratory Reporting Instructions for Public Water Systems Using Surface Water or Groundwater Under the Direct Influence of Surface Water (GUDI) Sources. Description: The Department's Bureau of Safe Drinking Water has made minor revisions to this TGD relating to laboratory reporting requirements under the Long-Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR). As set forth in 25 Pa. Code §§ 109.1201—109.1206 (relating to Long-Term 2 Enhanced Surface Water Treatment Rule), the LT2ESWTR describes, among other things, source water quality monitoring and additional treatment requirements for higher-risk water systems. The purpose of the LT2ESWTR is to enhance public health protection against pathogenic microbial contaminants, especially Cryptosporidia. This final TGD became available at 47 Pa.B. 3153 (June 3, 2017). Minor corrections to the TGD were necessary, as follows: (1) In Case Example # 1 on page 20, the final result in the Oocysts/liter calculation is ''2.272727'' replacing ''2.27''; the significant number of decimal places is six. Additionally, for the calculation, two significant decimal places are required for the number of liters; therefore, ''11.0'' was replaced with ''11.00'' liters. The related Drinking Water Electronic Lab Reporting screenshot was replaced by a corrected version on page 21; and (2) On page 1, under Reader's Note, and on page 3, item # 4 under Section 2: Responsibilities of the Laboratory, the eLibrary link was updated.

Contact: Questions regarding this TGD can be directed to Pauline Risser at or (717) 772-5970.

Effective Date: April 20, 2019

Withdrawal of Technical Guidance

DEP ID: 394-3000-001. Title: Pennsylvania Improving Waters Program Guidelines: Documenting and Reporting Measurable, Incremental Improvements in Water Quality of Streams, Rivers and Lakes. Description: This TGD was published as a draft at 45 Pa.B. 6452 (October 31, 2015). The contents of this TGD explain the process for Department staff and others involved in water quality monitoring who are interested in documenting and reporting measurable, incremental improvements in water quality in streams, rivers and lakes that result in progress towards an impairment-free condition. The Department has determined this TGD is no longer necessary because the guidelines therein have been replaced by the 2018 Assessment Methodology for Rivers and Streams. The Department does not intend to finalize the document and, by this notice, withdraws the draft guidance.

Contact: Questions regarding this action can be directed to Gary Walters at or (717) 783-7964.

Effective Date: April 20, 2019


[Pa.B. Doc. No. 19-576. Filed for public inspection April 19, 2019, 9:00 a.m.]

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