[Ord. No. 45,
§ 500, eff. 10-15-1973; Ord. No. 45-10, eff. 12-24-1998]
For township approval of water main systems, the applicant shall
furnish to the township department of public works a detailed estimate
of cost and two sets of water main plans including the general plan
for the system on which he desires approval and specifications. The
department of public works shall collect the review fee and refer
the plan to the township engineer who shall check the estimate and
review the plans for conformity to standards set forth in this article,
including obtaining the approval of the township fire chief for hydrant
locations, and certify that they are consistent with the overall utility
plans of the township, after which they will comment on the plans
conformity with township standards and accepted engineering practices.
The applicant, after making any changes requested shall then submit
two sets of the revised plans to the township for final approval.
The township engineer shall then review these revised plans for conformity
to the comments mentioned and if they have been properly made, will
request 12 copies for submittal to public agencies for construction
permits.
[Ord. No. 45,
§ 501, eff. 10-15-1973; Ord. No. 45-3, eff. 10-10-1986; Ord. No. 45-6, eff. 8-23-1989; Ord. No. 45-10, eff. 12-24-1998; Ord. No. 110-45, § 1(1.1), 6-3-2002]
(a)
All sets of plans which include plans for water mains shall include
the current township water main detail sheets which shall be considered
an inseparable part of the plans when such plans are approved.
(b)
All water mains shall be shown in a plan view. Water mains, at location
of crossings with other utilities or drains, and those water mains
16 inches or larger in diameter shall also be shown on a profile view
with elevations and clearances clearly identified.
(c)
Water mains 16 inches or larger shall be shown in plan and profile.
The profile of these water mains shall indicate stationing and elevations
of all fittings, valves and hydrants. Top of pipe elevations shall
be indicated every 100 feet and at change in slope and size. Pipe
slope shall be a minimum of 0.10% and shall be indicated on the profile.
Hydrants shall be located at all high points along the main.
(d)
The plan shall indicate the proposed finished grade elevations of
all hydrants, gate wells, and/or other structures and, where a public
main or hydrant is not located in a public street, shall show an easement
for the main and hydrants. The easement shall extend a minimum of
six feet for each side of the centerline of the main.
(e)
The type, capacities, location, and layout of a building service
water supply pipe shall comply with all requirements of the township
engineer, the county health department and the state. Where water
mains are planned along public roadways or for private development
on private property with an easement, the building service water supply
pipe for each lot shall be extended (by the developer) across the
roadways and easement prior to paving. Each such service pipe shall
be terminated with a curb stop and box that is located between sidewalk
and right-of-way. For service up to two inches only copper type "K"
services shall be allowed. For services larger than two inches, ductile
iron (CL 54) shall be used in even increments.
(f)
The type of pipe and joints indicated on the plans shall be in accordance
with the currently adopted township standards.
(g)
Size, quantity, and location data shall be included on water main
plans.
(h)
All water mains shall be installed with a minimum cover of five feet
below finished grade. Where water mains must dip to pass under a storm
sewer or sanitary sewer, the minimum acceptable clearance shall be
18 inches. Valves shall be provided on each side of the dip to allow
for isolation if the diameter of the utility being crossed exceeds
36 inches or if the depth to the top of the water main exceeds seven
feet. At all open drain crossing a five-foot minimum clearance between
the bottom of the drain and top of the water main shall be provided.
The sections which are deeper than normal shall be kept to a minimum
length by the use of vertical bends (maximum deflection allowed 22 1/2°)
properly anchored.
(i)
Residential water mains, other than hydrant leads, shall be eight
inches minimum in diameter. All single hydrant leads longer than 50
feet shall be eight inches minimum diameter and shall be valved as
a dead end main. Hydrant leads less than 50 feet may be six inches
diameter and shall be valved as a dead end main. In commercial, industrial,
office and institutional areas water mains shall be 12 inches minimum
in diameter.
In all cases the current township master water distribution
plan shall govern where it requires a larger size of main. The developer
shall be required to install the diameter water main specified on
the master plan.
(j)
Each condominium unit shall have a separate water lead and meter.
Each unit in commercial, industrial, or office multiunit developments
shall have a separate water lead and meter. Water services shall be
constructed such that they do not cross the building envelope of another
unit.
(k)
All valves, except hydrant valves shall be installed in a standard
gate well. All gate valves shall be double resident seated. All valves
larger than 16 inches shall be approved gate valves (with bypass).
Valves shall be located in the system such that not more than four
valves need to be turned off to isolate any individual section of
water main. Moreover, sufficient valves shall be placed such that
not more than 30 dwelling units or service establishments shall be
serviced within such section of water main that can be isolated. For
developments of greater than 30 units a water main loop is required.
Maximum valve spacing shall be 1,000 feet. Where possible valves shall
be located at the street right-of-way line. All dead-end mains shall
be valved near the tee.
(l)
Water mains shall be looped and stubbed to adjacent properties when,
in the opinion of the township engineer and water superintendent,
it is necessary to facilitate adjacent development, to improve circulation,
to improve fire protection or to protect the health, safety and welfare
of township residents.
(m)
Hydrants shall be installed along the water main at least every 500
feet. However, in no case shall any external part of any building
be more than 300 feet from a hydrant. In no case shall a hydrant be
closer than 50 feet to any external part of a building. In commercial
or industrial districts, additional hydrants may be required by the
township fire chief with reference to applicable building and/or fire
codes adopted as ordinances of the township. A hydrant shall be located
a minimum of 50 feet and a maximum of 100 feet from the fire department
connection. Hydrants shall be installed at the ends of all dead-end
water mains. When near a street intersection, hydrants shall be located
a minimum of 15 feet from the intersection street right-of-way line.
Where a ditch exists, a culvert shall be provided to allow access
to the hydrant and maintain flow in the ditch. Hydrants shall be township
standard. Location of hydrants shall be approved in writing by the
township fire chief and water and sewer department.
(n)
Hydrant use without prior permission of the superintendent of the
township water department is prohibited and may result in confiscation
of all hoses, meters, apparatus and other equipment and shall require
reimbursement of all cost for labor, material, equipment, related
work and legal fees in addition to fines.
