§ 109.705. Sanitary surveys.

 (a)  A community water supplier shall conduct a sanitary survey of the water system at least annually. The survey shall include the following activities:

   (1)  Watershed surveillance consisting of an inspection of portions of the drainage area or wellhead protection area necessary to identify and evaluate actual and probable sources of contamination. An inspection of a wellhead protection area shall include a review of available information pertaining to possible sources of contamination such as underground storage tanks, onlot disposal systems and other activities that may have an adverse impact on water quality or quantity. Specific hydrogeological studies of sources of contamination are not necessary unless required under §  109.4, §  109.602 or §  109.603 (relating to general requirements; acceptable design; and source quality and quantity) or other rules of the Department.

   (2)  Evaluation of source protection, intake structures and transmission facilities.

   (3)  Treatment facilities inspection consisting of an evaluation of the effectiveness of the operation and maintenance procedures and the condition and operability of permitted facilities.

   (4)  Evaluation of finished water storage facilities and the distribution system.

   (5)  Pressure surveys consisting of a measurement of pressures at representative points in the distribution system, which shall include new water line extensions. Surveys shall be made during periods of maximum and minimum usage. Records of these surveys shall show the date and time of the beginning and end of the test and the location at which the test was made.

 (b)  A community water system which does not collect five or more routine coliform samples per month shall do one of the following:

   (1)  Undergo a sanitary survey conducted by the Department by June 29, 1994, and thereafter undergo a subsequent sanitary survey conducted by the Department at a minimum of every 3 years after the initial sanitary survey, depending on the type of source, treatment and population served.

   (2)  Increase the number of routine coliform samples collected to at least five samples per month if the Department does not conduct a sanitary survey by June 29, 1994, or within 3 years following the initial or a subsequent sanitary survey. This increased sampling frequency shall be in place of the monitoring frequency requirements for coliforms in §  109.301(3)(i) (relating to general monitoring requirements) and shall remain in effect through the month in which the next sanitary survey is conducted by the Department.

 (c)  A noncommunity water system which does not collect five or more routine coliform samples per month shall do one of the following:

   (1)  Undergo an initial sanitary survey conducted by the Department by June 29, 1999, and thereafter undergo a subsequent sanitary survey at a minimum of every 5 years after the initial sanitary survey, except that noncommunity systems using only protected and disinfected groundwater shall undergo subsequent sanitary surveys at a minimum of every 10 years after the initial sanitary survey.

   (2)  Increase the number of routine coliform samples collected to at least five samples per month if the Department does not conduct a sanitary survey by June 29, 1999, or within 5 or 10 years using the criteria in paragraph (1), following the initial or a subsequent sanitary survey. This increased sampling frequency shall be in place of the monitoring frequency requirements for coliforms in §  109.301(3)(i) and shall remain in effect through the month in which the next sanitary survey is conducted by the Department.

   The provisions of this §  109.705 adopted December 7, 1984, effective December 8, 1984, 14 Pa.B. 4479; amended May 15, 1992, effective May 16, 1992, Pa.B. 2621; amended October 7, 1994, effective October 8, 1994, 24 Pa.B. 5175. Immediately preceding text appears at serial pages (170202) to (170204).

   This section cited in 25 Pa. Code §  109.301 (relating to general monitoring requirements).