South Carolina Code of Regulations › Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL › Subchapter 61-58.7 - Operation and Maintenance › Section 61-58.7.D - Groundwater Sources and Treatment Plants

Current through Register Vol. 48, No. 6, June 28, 2024
(1) All well heads and associated piping
			 shall be inspected at a minimum of once a week. Stand-by wells shall be
			 inspected and exercised_at least quarterly. Documentation of these inspections
			 must be maintained.
(2) All
			 groundwater treatment plants shall be monitored by an operator of the
			 appropriate grade, at a frequency to ensure proper operation, but in no case
			 less than once a day. Such monitoring may be accomplished through site visits
			 and/or remote monitoring equipment approved by the Department.
(3) All pressure filters and enclosed
			 aeration devices shall be opened and inspected per manufacturer's
			 recommendation or as required to ensure proper operation.
(4) Valves provided for the isolation of each
			 well shall be maintained to ensure proper operation.
(5) The check valve and blow-off on the well
			 head piping shall be maintained.
(6) Adequate freeze protection for the well
			 head piping shall be maintained.
(7) A flow meter shall be maintained for each
			 well serving a community water system and each well which is equipped with
			 chemical treatment. The meter shall be periodically calibrated to ensure
			 accuracy in accordance with the manufacturer's recommendations. Calibration
			 records shall be kept on file for a minimum of three (3) years.
(8) Drainage systems shall be maintained so
			 that surface water flows away from the well head.
(9) All wells shall be maintained so the
			 sanitary seal, the casing, the screened vent and the concrete pad are in good
			 repair and can prevent the entrance of contamination into the well.
(10) If a well is no longer used ,does not
			 meet the requirements of a stand-by or emergency well, and is not converted to
			 another active use (e.g. irrigation), it shall be properly abandoned in
			 accordance with R.61-58.2.B(15).
(11) Public water systems using ground water
			 as its drinking water source shall maintain compliance with R.61-58.2B(1).
(12) The capacity of a public water system
			 which uses groundwater as its only drinking water source, shall be based on all
			 operable wells pumping 16 hours a day or all operable wells minus the largest
			 well pumping 24 hours a day, which ever is less. If the system has an
			 additional source (surface water plant or metered connection from another
			 public water system), the additional capacity from that source shall be used in
			 determining the total capacity of the system. If the capacity of the system is
			 exceeded on a consistent basis during the peak water use months, the system
			 shall submit a preliminary engineering report to the Department within ninety
			 (90) days addressing in detail any upgrade necessary to keep up with any growth
			 in demand on the system. Construction plans and specifications for a new well
			 may be submitted in lieu of the preliminary engineering report. In addition,
			 the Department may elect not to issue any construction permits for new water
			 line construction until the capacity of the system is increased.
(13) The public water system shall conduct
			 monitoring as specified in R.61-58.2(B)(14)(c)(B)(14)(c)when
			 required by the Department to determine if the ground water source is under the
			 direct influence of surface water.
(14) Stand-by wells must be exercised and
			 sampled for total coliform on at least a quarterly basis. In addition, stand-by
			 wells must be sampled annually for nitrate and nitrite. This monitoring is
			 conducted by the water system and records must be maintained for Department
			 inspection. Whenever a stand-by well is put in service, the system must notify
			 the Department as soon as possible, but in no case later than the end of the
			 next business day.
(15) Emergency
			 wells must be exercised on an annual basis to ensure that they are operable.
			 Whenever an emergency well is placed into service, the system must notify the
			 Department as soon as possible, but in no case later than the end of the next
			 business day. In addition, the system must immediately issue a Boil Water
			 Advisory for all portions of the system being served by the emergency
			 well.