Utah Admin. Code R655-4-16 - Pump Installation and Repair
16.1 Pump installation practices. All pump
installations shall be completed in such a manner as to prevent waste and
contamination of groundwater by pollution material entering the well from
pumping equipment, casing connectors, fittings, piping, sanitary seals or
caps.
16.2 Surface Seal. If in the
process of pump installation or repair, the well's surface seal is disturbed or
damaged, it shall be repaired and resealed in accordance with the standards
provided in Subsection
R655-4-11 (11.4).
16.3 Tools, Equipment, and Materials.
Down-hole tools and equipment used in performance of pump installation and
repair shall be cleaned, disinfected, and free of contamination before
placement in a well. All tools, drilling equipment, and materials used to drill
a well shall be free of contaminants before beginning pump-related work.
Contaminants include lubricants, fuel, or bacteria that will reduce the well
efficiency, and any other items that will be harmful to public health or the
resource or reduce the life of the water well. It is recommended that excess
lubricants placed on equipment be wiped clean before insertion into the well.
Thread compounds, sealants, and lubricants must not exceed the maximum
contaminant levels for chemicals, taste, and odor. The licensee shall use
pump-related tools and equipment properly so as not to permanently damage the
well or aquifer.
16.4 Disinfection.
Following completion of pump installation and repair work on a well, the well,
pump, and in-well discharge piping shall be properly disinfected in accordance
with Subsection R655-4-11 (11.6.5).
16.5. Product, material, and Process
Standards. Any product, material or procedure designed for use related to pump
installation and repair of water production or non-production wells, which has
received certification and approval for its intended use by the National
Sanitation Foundation (NSF) under ANSI-NSF Standard 60 or 61, the American
Society for Testing Materials (ASTM), the American Water Works Association
(AWWA) or the American National Standards Institute (ANSI) may be utilized.
Other products, materials or procedures may also be utilized for their intended
purpose upon manufacturers certification that they meet or exceed the standards
or certifications referred to in this section and upon state engineer approval.
Organic substances shall not be introduced into the well or borehole during
pump installation and repair work.
16.6 Surface Completions. Pump installers
shall leave the well surface completion upon completion of pump installation or
repair work in accordance with the standards in Section
R655-4-11 as it pertains to
casing stick-up, steel or PVC casing extensions, sanitary capping and venting,
and protective casings. Upon completion, all wells shall be equipped with a
watertight, tamper-resistant casing cap or sanitary seal.
16.7 Flowing Artesian Wells. In accordance
with Subsection R655-4-11 (11.4.3.5), artesian
wells that flow naturally at the surface, the well shall be equipped with a
control valve so that the flow can be completely stopped. The control valve
must be available for inspection by the state engineer at all times.
16.8 Seals Between Casings. If the well is
constructed of multiple casing strings at or near the ground surface and if a
pitless adapter or unit is installed, the standards of Subsection
R655-4-11 (11.5.5) shall be
employed to ensure proper sealing between casings is maintained.
16.9 Water Level and Flow Measurement.
Following pump installation and repair work, the well shall be left in such a
manner to allow for access to water level measurements in accordance with
Subsection R655-4-11 (11.7.2). After pump
installation and repair work is completed on a well, the static water level
should be measured after which a test should be performed to determine the rate
at which groundwater can be reliably produced from the well. Pumping water
level should be measured and recorded during this test. Static water level and
well testing information shall be noted on the official submittal of the Pump
Log by the pump installer or well driller.
16.10 Surface Security. If it becomes
necessary for the pump installer to temporarily discontinue operation on a well
before completion or otherwise leave the well unattended, the well must be
covered securely to prevent contaminants from entering the casing and rendered
secure against entry by children, vandals, domestic animals, and
wildlife.
16.11 Above-grade
connections. An above-grade connection into the top or side of a well casing
shall be at least 18-inches above the land surface and shall be constructed so
as to exclude dirt or other foreign matter by at least one of the following
methods, as may be applicable:
(A) threaded
connection;
(B) welded
connection;
(C) expansion
sealer;
(D) bolted flanges with
rubber gaskets;
(E) overlapping
well cap; or
(F) if a water well
pump is mounted or sealed on a concrete pedestal, the casing shall extend at
least to the top of the pedestal and at least 18-inches above the land
surface.
16.12 Pitless
Connections. Pitless adapters and units shall be installed in accordance with
the standards set forth in Subsection
R655-4-11 (11.7.5). Pitless
adapters shall be installed below the frost line. A below ground connection
shall not be submerged in water when installed. Holes cut in the casing through
which the pitless adapters are installed must be sized and constructed to
guarantee a watertight seal with the pitless adapter in place.
16.13 Backflow Protection. When a check valve
or foot valve is not a part of the pump, a check valve or back-siphon
prevention device shall be installed on the pump discharge line within the well
or beyond the well to eliminate the opportunity for contaminated water to
backflush into the well. Such device must be designed to direct or isolate the
water flow to prevent water in the distribution line from running back down the
well during removal or repair to the pump and pumping equipment. When a flow
meter is installed on a well the meter must be located downstream from the
backflow preventer and be placed in accordance with manufacturer spacing
specifications.
16.14 Hand Pumps.
Hand pumps shall be of the force type equipped with a packing gland around the
pump rod, a delivery spout that is closed and downward directed, and a
one-piece bell-type base that is part of the pump stand or is attached to the
pump column in a watertight manner. The bell base of the pump shall be bolted
with a gasket to a flange that is securely attached to the casing or pipe
sleeve.
16.15 Pumping Water Level.
In a screened or perforated well, the well pump setting and suction inlet shall
be located so that the pumping level of the water cannot be drawn below the top
of the screen.
16.16 Pump and
Column or Drop Pipe Removal. During any repair or installation of a water well
pump, the licensed installer shall make a reasonable effort to maintain the
integrity of ground water and to prevent contamination by elevating the pump
column and fittings, or by other means suitable under the
circumstances.
Notes
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