The Sterling Board of Health promulgates these regulations pursuant
to MGL c. 111, § 31. They will become effective on January
1, 1986.
Wells shall be constructed only by registered well drillers
licensed by the Commonwealth of Massachusetts.
For all wells which terminate in bedrock, a permanent casing
shall extend from six inches above ground into the bedrock a minimum
of 10 feet below bedrock surfaces.
All wells shall be disinfected following construction, rehabilitation
and well or pump repairs before being placed in service. After pumping
to waste until water is clear, well and equipment shall be disinfected
with a solution containing at least 50 ppm of chlorine solution for
at least 24 hours before flushing. All water used in drilling shall
be disinfected.
Well drillers or pump installers shall collect water samples.
Sampling shall be done immediately following development and disinfection
of the well. Bacterial, chemical and physical analyses shall be made
and the results shall be submitted to the Sterling Board of Health.
Approval of the Board must be obtained before the well water is used.
Water quality analyses shall be performed as follows:
A. A representative sample of at least 100 milliliters shall be collected
at pump discharge, preferably from a tap in the discharge system.
B. The sample shall be taken in a sterile container, properly labeled
with the location, the date and the name of the collector.
C. The sample shall be analyzed in a laboratory certified by the Massachusetts
Department of Environmental Quality Engineering.
D. Bacterial quality. The samples shall be collected after all traces
of disinfectant chemicals have been removed. The results of the bacteriological
analysis shall be zero coliform per 100 milliliters.
E. Chemical quality. The sample shall be analyzed for and not exceed
the following standards:
(1) Nitrates: 10 mg per liter.
(2) Arsenic: 0.05 mg per liter.
(3) Sodium: 20 mg per liter. Exceeding the sodium standard does not constitute
a violation but serves as a notice to the user.
F. Physical quality.
(2) Turbidity: one turbidity unit.
G. Additional tests for chemicals or organisms may be required by the
Sterling Board of Health.
The provisions of Title I of the Massachusetts Environmental
Code (310 CMR 11.00) shall govern the enforcement of these regulations.
If any section or sentence, clause, or phrase thereof shall
be held invalid for any reason, the remainder of that section and
all other sections shall continue in force.