[Ord. No. 11-2I 118 §1, 5-12-2016]
The water main system shall be designed in accordance with the
Minimum Design Standards Design Guide for Missouri Community Water
Systems (December 10, 2013 or most recent edition) published by the
Missouri Department of Natural Resources. The criteria in latest revision
of the City of Farmington Standard General Conditions and Technical
Specifications for Public Works Construction shall also be utilized.
In the event of conflict, the more stringent requirements shall prevail.
[Ord. No. 11-2I 118 §1, 5-12-2016]
A. No public water main shall be less than six (6) inches in diameter.
B. Water mains shall be placed in utility easement within and adjacent
to the street right-of-way where feasible. Water mains shall not be
at the rear of lots unless special approval is received from the Public
Works Director.
C. The water main design shall be a loop layout, providing water service
for each lot unless special approval is received from the Public Works
Director. In the event a dead end layout is approved, a fire hydrant
and shut off valve shall be located at the end of main. An Eclipse
9700 flushing device (with collar lock and splash pad) will be required
on said hydrant.
D. Fire hydrant shall be a Mueller Super Centurion 250, A423 (with integral
five (5) inches Storz adapter) placed at street intersections and
not more than six hundred (600) feet for all zoning classifications.
E. The separation of water mains from other underground utilities, such
as sanitary sewers and storm sewers, shall conform to Missouri regulations
and the Design Guide for Missouri Community Water Systems.
[Ord. No. 11-2I 118 §1, 5-12-2016]
A. Water system drawings shall be prepared on plans separate from other
utilities.
1.
Plan. The plan view shall be at the top of
the drawing. Standard symbols shall be used. A standard north arrow
shall be located on each sheet (pointing up or to the right).
a.
Scale shall be one (1) inch equals forty (40) feet horizontal
for undeveloped areas and one (1) inch equals twenty (20) feet for
developed areas, or an approved scale easily plotted at half scale.
b.
Method of indicating location. Water mains
within streets and adjacent developed areas shall be located in plan
by dimensions from property markers or other well-defined physical
features.
c.
Profile. The profile shall be shown under the
plan.
d.
Scale. Scale shall be one (1) inch equals four
(4) feet vertical, and one (1) inch equals forty (40) feet horizontal
for undeveloped areas and one (1) inch equals twenty (20) feet for
developed areas, or an approved scale easily plotted at half scale.
e.
Utilities. All existing and proposed utilities
shall be accurately and clearly shown in plan and profile. Elevations
of existing utilities shall be obtained where possibility of conflict
exists.
f.
Location and design information. An index sheet shall be supplied, indicating the entire area to be served by the proposed water mains and indicating the sheet number on which each segment of water system line is drawn. The scale shall be one (1) inch equals one hundred (100) feet, When this cannot be done without attaching an extra drawing, then the scale will be one (1) inch equals two hundred (200) feet. Bench marks based on USGS datum shall be shown on the drawings as per the survey requirements included as Chapter
II of these design standards. The Department of Public Works will review the plans to determine its compatibility with the entire water system. The developer or owner's name shall be shown on the cover sheet along with the subdivision name.
B. Copies of drawings and reports submitted to the Missouri Department
of Natural Resources for permitting shall also be submitted to the
Public Works Department for review and approval. Missouri Department
of Natural Resources approval of plans and specifications shall be
provided upon receipt.