PROJ00487

• Contract/PO #: FS0007X
• Contractor Name: Kennesburg, Town of
• County: Weld
• Loan Projects - Doc Type: Feasibility Study

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It can be seen that present existing wells nos. 2, 3, and 4 have a
rated capacity of 50 to 60 gallons per minute each. The amount
appropriated to the wells is a total of 180 gallons per minute.
However, the existing wells can only produce approximately 136 gpm.
Co WATER QUALITY

The chemical and physical characteristics of the deep well water supply
are included in Appendix C within the Sanitary Survey Report as prepared
by the Colorado Department of Health. As can be seen from the chemical
analysis of the water, there are two primary areas of concern. These
are that the fluorides were found to be 3.2 mg/liter as compared to the
maximum allowable of 2.4 mg/1it~r and that the total solids contained were
673 mg/1iter as compared to 500 mg/1iter as the recommended limit. The
analysis reveals that these are the only two water quality items which
exceed or approach the maximum allowable or recommended limits established
by the Colorado Department of Health. Because the fluoride content in
the water is only slightly above the maximum allowable, the water quality
for this water may be considered reasonably good as compared to other
sources of water in the area; particularly when considering the shallow
wells or surface supplies available.

The primary consideration for exceSsive fluorides in potable \'/ater is
that the fluorides produce objectionable staining and mottling
of tooth enamel. Treatment methods for removing or reducing fluorides
in water are limited and not adaptable to common or past
conventional treatment methods for public water supplies. Blending of
water containing high fluorides with.a water supply containing lesser
amounts of fluorides is one method for meeting the health standards.
As noted by the report, fl uori des may be removed by an al urn; na fil ter
media and regeneration using chemicals. This process could be done by
using standard ion exchange equipment. Treatment processes for removal
of fluorides have been found to be quite expensive as compared to
conventional treatment costs and therefore are normally prohibitive and
not practical for consideration.

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