DDW-2024-006933

a 466 North 900 West, Kaysville UT 84037 p 801 547 0393 f 801 547 0397 w www.jub.com
March 29, 2024
[e-mail]
Division of Drinking Water
Department of Environmental Quality
195 North 1950 West
Salt Lake City, UT 84114
Re: Bona Vista Water – S-Curve Senioer Subdivision - Sewer Crossings (System #29004, file
#TBD) Minimum Separation Requirement – Exception Request to R309-550-7

Dear Mr. Newberry:
Our office has reviewed the plans for the above-mentioned subdivision within the Bona Vista
Water System. The Site is located at 2850 West and 2600 North in Weber County, Utah. The
project consists of 25 lots. The plans have been reviewed, computer models ran, and
approvals pending from the District for the construction of the water system improvements
for the site.
Due to the proximity of the proposed sewer to the culinary water, the proposed 4” sewer
laterals will be sleeved in 6” PVC SDR35 pipe casings and the proposed 1” culinary laterals
will be sleeved in 4” PVC SDR35 pipe casings. The plan shows a note for the casings in all
locations (please see the attached table). All casings will be installed at a length of 10’
perpendicular from the sewer. PVC casing are being used due to the corrosively of the soils.
Please see the attached table for specific information on each crossing.
The groundwater table is shallow in the area due to irrigation canals near the property. No
exact measurements have been taken because of the seasonal nature of the canal. The sewer
main and laterals will be installed in PVC pipe. The water main is a new 8” PVC pipe and
laterals will be copper pipe. Construction is intended to begin in the early months of 2024.
We request an exception to the Minimum Separation Requirement R309-550-7 for these
crossings.
Please let us know if additional information is needed.
Sincerely,
Gregory L Seegmiller P.E.
Company District Engineer
Cc: Blake Carlin, Assistant General Manager, Bona Vista Water Improvement District
Sincerely,
Gregory L Seegmiller P.E.
Company District Engineer
Bona Vista Water Improvement District (System #29004)
S Curve Senior Subdivision - Sewer Exception (File # )
Crossing Sheet Station Lot Pipe being cased Casing Thickness Description Over/Under water
1 CE2-02 44+05 23 4" sewer lateral 6" PVC SDR35 0.180 in.Sewer lateral under water within 18" vertical
2 CE2-02 43+70 15 1" water lateral 4" PVC SDR35 0.120 in.Water lateral over the sewer main within 18" vertical
3 CE2-02 43+75 14 1" water lateral 4" PVC SDR35 0.120 in.Water lateral over the sewer main within 18" vertical
4 CE2-02 44+95 13 1" water lateral 4" PVC SDR35 0.120 in.Water lateral over the sewer main within 18" vertical
5 CE2-02 45+05 12 1" water lateral 4" PVC SDR35 0.120 in.Water lateral over the sewer main within 18" vertical
6 CE2-05 55+35 8 1" water lateral 4" PVC SDR35 0.120 in.Water lateral over the sewer main within 18" vertical
7 CE2-05 55+75 9 1" water lateral 4" PVC SDR35 0.120 in.Water lateral over the sewer main within 18" vertical
8 CE2-05 56+40 10 1" water lateral 4" PVC SDR35 0.120 in.Water lateral over the sewer main within 18" vertical
9 CE2-05 56+45 11 1" water lateral 4" PVC SDR35 0.120 in.Water lateral over the sewer main within 18" vertical
Pressure Range of Water: 80-90 psi
Soil Types: sandy laom soils
Groundwater conditions: 5' approximate depth