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Water Service Procedures
Hibbing Public Utilities
Branch Water Service Installations
Fire Hydrants
Frozen Water Lines
Non-esstential Water Use
Water Main Connections
Water Rates
Water Repairs
Water Service Installations
Water Service Installations Materials
Water Service Territory
Water Service Work
Water Special Connections
Water Taps on Private Mains
Water Tap Service Installations
Weekend Water Shutoff
Wellhead Water Service
Branch service installation will include all water service lines of 3 inch nominal inside diameter pipe or smaller.
Component Parts
The component parts
of a branch
service installation will include a tapping sleeve and tapping valve or
a branch
three-way tee with gate valve, complete with valve box, thrust blocking
concrete
collar, if required, and iron piping extending to the property line.
Branch service piping will be cast iron water
piping of the
size and wall thickness required. The
pipe and appurtenances will have rubber gasketed push-on or mechanical
joints. (back to top)
Fire hydrants owned
by the City
of Hibbing are not available for public use under normal circumstances.
In the unusual event that a fire hydrant is needed, a customer
must
contact the HPUC to receive permission to use the hydrant.
Customers using a fire hydrant without the permission of the
HPUC will be
billed for the amount of water used from the hydrant.
Note: An additional meter
rental fee may also be levied as a penalty for not formally requesting
permission to use a fire hydrant.
Fire hydrants owned by private parties are to be maintained by the owners and not by the HPUC. (back to top)
Customers with frozen water lines are to contact the HPUC for assistance with thawing the lines. The HPUC will thaw all frozen water lines in their water distribution system using a pipe thawing machine. Outside contractors are not allowed to thaw frozen water lines.
Customers are responsible for the lines from the curbstop to their property and will be charged a fee for thawing. The HPUC is responsible for the lines from the standpipe back to and including the main, and the customer is not charged a fee for thawing these lines.
See Service Callout Charges for current customer charges. (back to top)
When a water
shortage
exists, a notice will be given to all water customers to curtail all
non-essential water use. Non-essential
water use includes, but is not limited to:
· watering lawns and gardens
· washing vehicles, boats, bicycles, ATVs, etc.
· cleaning sidewalks
· cleaning building exteriors
·
any watering activity not essential to daily living
(back to top)
The following requirements apply to the 24-inch and the 30-inch water transmission line from Howard Street and 12th Avenue East via the East Beltline–13th Avenue East to the 53rd Street Water Pump Booster Station.
1) Water distribution connections will be made only where existing connections are provided.
2) Water service tap connections are not allowed on the 24-inch and 30-inch water transmission line. Service taps will be made only on water distribution lines.
3) Customer and/or contractor must first obtain a written approval from the HPUC before any connections are made to the 24-inch and 30-inch water transmission line.
4) In order to facilitate emergency repairs, the materials used in a new development or extension of a water distribution line will be similar to or compatible with the existing water distribution system of the HPUC. This includes but is not limited to pipe, fittings, valves, and fire hydrants.
5) All required permits and licenses will be obtained from the affected government agency or body (city, township, county, state) before water service work begins.
6) All backfill, excavations and resurfacing on public property will be done in accordance with the ordinances, policies, and procedures of the affected governing body and in accordance with the requirements of AWWA C-600.
Rate Schedules are available at the HPUC offices. They are based on water facilities and services that are approved and certified by the Minnesota State Department of Health. Rates apply to Standard Service.
Repairs to water pipes on the customer’s side of the standpipe are the responsibility of the customer. Customers can do their own work or hire a plumbing contractor to do the work.
Repairs to water pipes on the distribution main side of the standpipe, including the valve, are the responsibility of the HPUC. Repairs to water pipes will be made as immediately as possible to avoid pumping, chemical costs, water waste, and unsafe environmental conditions.
The HPUC will maintain and repair all public water lines throughout the City of Hibbing, and the City will be charged for any service on City water lines. (back to top)
All
HPUC water service facilities must be installed according to the
following
general provisions:
Water
service installation work will be kept exposed so that the HPUC can
obtain
accurate records of the location, depth and size of each service
connection, the
location of curb cocks, shut-off valves (standpipes), and pipe ends.
These records are important for future construction or repair.
Water
service lines will be installed by trenching.
Water service lines will be laid in a separate trench excavated
principally for the water service installation.
Installation
of water service lines will include not less than 7 ½ feet of cover over the top of the water lines.
There
must be at least 12 inches of clearance between pipelines where water
service
lines cross pressure gas lines, sanitary lines, or storm and sewer
lines. Proper
and adequate bearings for all pipes and appurtenances are required.
At
least 6 inches of clearance will be maintained where water service
lines cross
over or under other structures while maintaining the 7 ½ feet of
cover.
Where
the water service pipe may be exposed to freezing due to insufficient
cover or
exposure to other underground structures, the water pipe will be
insulated.
The
flaring of copper tubing ends will be performed using the proper size
and type
of tool designed for the purpose. Proper
tools will provide accurate sizing and rounding of the ends.
The tubing will be cut squarely and all edge roughness removed
prior to
flaring. All couplings will be
tightened securely so the flared end fits snuggly against the bevel of
the
fitting without leakage. The flare
joint coupling will be made up without the use of joining compounds.
The depth of the service pipe and standpipe will adhere to the specified minimum cover and will provide for a standard service box installation. The curb stop will be set on a hard wood or cement concrete block. The service box will be threaded over the curb cock. Service boxes will be installed plumb and be braced effectively to remain vertical during and after completion of backfilling. Service boxes will be brought to existing grade if the final grade has not yet been determined. (back to top)
All references to cast iron materials include both gray cast iron and ductile iron products. References to specifications will be according to the latest published edition or supplement available.
Cast iron pipe will conform to the latest requirements of the “American Waterwork Association” (AWWA), C-106. Ductile cast iron pipe will conform to the latest requirements of AWWA C-151. In addition, the pipe will conform to the following provisions:
1) All pipe will have cement mortar lining conforming to AWWA C-104 for standard thickness lining. All interior and exterior surfaces of the pipe and coating will have a tar or bituminous seal coating at least 1 mil thick.
2) All pipe will have push-on type joints conforming to AWWA C-111.
3) All pipe will be in 18-foot nominal lengths.
4) The minimum class thickness will be Class 52 for 3-inch, 4-inch, and 6-inch pipe.
5) Pipe will have provisions to maintain electrical continuity for thawing purposes.
6)
Ductile iron fittings will conform to AWWA C-110 -
gray iron and ductile iron fittings with cement lining,
mechanical joint
ends, and lead tip rubber gaskets for electric continuity thawing
purposes.
Fittings cement mortar lining will conform to AWWA C-104
Gate valves will be manufactured in accordance with an approved pattern and will conform to the requirements of AWWA C-500. The valves will comply with the following requirements:
1) Gate valves will be two faced, double disked type, with parallel seats, a 2 inch square nut, open left with mechanical joint ends.
2) All gate valves will be 6 inches or smaller with “O” ring stem seals.
3) All gate valves will have a non-rising stem pipe.
4) Each valve will be complete with gasket gland and bolts. Bolts or valve flanges will have the means to prevent the bolts from slipping in the slotted holes.
Insulation
Polystyrene insulation will conform to the MHD Specifications 3760 for insulating board. The thickness required can be obtained by combining single sheets with a minimum thickness of 1 inch each.
Urethane insulation, when required, will have the following physical properties:
a. Density of 1.7 to 2.2 pounds per square foot
b. “K” Factor of 1.1 BTU per hour per square foot per degree Fahrenheit per inch
c. Thickness compressive yield strength, parallel to the rise, 30 to 38 psi, perpendicular to the rise, 16 to 24 psi
d.
Water absorption of 0.033 pounds per square foot
(back to top)
The water service territory of the HPUC consists of a water piping distribution system in the City of Hibbing, including Kitzville, Kerr Location, Kelly Lake, and Leetonia. (back to top)
1. Developer, contractor, or property owner is responsible for the installation, maintenance, and repair of their water lines. They will install the water lines in accordance with HPUC specifications. The distribution mains are the customer’s responsibility until acceptance by the City of Hibbing, at which time the maintenance of the distribution mains will become the responsibility of the HPUC.
2. All excavations, backfill, and resurfacing on public property will be done in accordance with City of Hibbing ordinances and HPUC rules and regulations.
3. All required permits and licenses will be obtained from the City of Hibbing Engineering Department or City Clerk before any work begins on public property.
4. Upon written request, the HPUC may make taps from ¾-inch up to 6 inches at the customer’s expense. The HPUC will not do the trenching and will not make taps larger than 6 inches. This can be done by the customer or contractor. In these cases, the HPUC will perform site inspection to verify conformity.
5. All water services will be installed at a minimum depth of 7 ½ feet below the finished grade. (back to top)
Water distribution connections to the 24 inch and 30 inch water transmission lines from Howard Street and 12th Avenue East via the East Beltline, 13th Avenue East to the 53rd Street water pumping station will be made only upon express approval of the HPUC. (back to top)
The HPUC will not make a tap on a private distribution main without authorization from the owner(s). Individuals requesting a tap on a private distribution main must submit written and signed authorization from the owner(s) of the main that permits the tap to be made. (back to top)
All HPUC tap service installations will adhere to the following requirements:
Tap service piping will be laid directly on solid foundation soil that is relatively free of stones and hard lumps. If required, aggregate material will be placed as necessary to secure proper foundation drainage, pipe covering, or backfill support.
Pipe
Size
Tap service installation will include all water service lines of 2 inch nominal inside diameter pipe or smaller.
Tap service piping of ¾ inch up to and including 1 ¼ inch diameter will be installed in one piece without an immediate joint coupling between the corporation stops at the water main tap and the curb stop.
Service pipe of 1 ½ inch diameter and larger will be furnished in standard cut lengths of 20 feet and longer. It will be joined with approved couplings, provided that the installation of pipe, less than full standard length in any run, is limited to the needs for closure. All pipe and appurtenances will be joined by means of approved flared type threaded couplings.
Connection
of tap service lines to water mains will be made with an approved
corporation
stop with the water main tap being made at an angle of no more than 45
degrees
from the horizontal. Service lines
will have a 45-degree bend connected to the corporation stop to bring
the pipe
to horizontal.
Unless otherwise indicated, tap service lines will be installed on a straight line, at right angles to the water main or property line. Service lines will extend for the distance beyond the curb stop that is required to reach the property line.
The component parts of a tap service installation include:
a. standard service lines of ¾ inch diameter seamless copper water tube (size and type may be specified for commercial services and some residential services)
b. corporation cock complete with water main tap and saddle
c. curb cock complete with service box
d. sufficient copper pipe to extend from the water main to the property line
Tap service pipes and fittings will adhere to the following specifications:
1) Tapping sleeves and tapping valves are required for all connections.
2) Tap service pipe of 2 inches or less inside diameter will conform to the requirements of ASTB 88 for seamless copper water tube type K, soft annealed temper.
3) Corporation cocks will be cast brass, having uniformity of wall thickness and strength. They will be free of defects affecting service ability. Male tap ends will have tapered threads conforming to the AWWA Standards. Corporation stop will be complete with an 8th bend fitted for a flared copper pipe connection.
4) Curb cocks will be Minneapolis pattern with AWWA standard male threads, inlet and outlet, fitted for flared copper pipe connection. Each curb stop will include a service box, as well as a concrete collar where applicable. The curb box will be according to the standard detail drawing for water street services. (back to top)
Weekend customer requests for water service shut-off and turn-on's will attempt to be coordinated with the HPUC Water Department employee conducting well rounds. The Shift Engineer will notify the Water Department employee (while on rounds ) that a request has come in. The Water Department employee will then let the Shift Engineer know if this work can be accomplished during the time allotted for the well rounds. If it can, the customer will not be charged. If the work can not be done, the customer's options are to pay the after hours fee or schedule the request during regular working hours. Verification must be made to ensure the request does not violate the status of a delinquent water account. (back to top)
The Wellhead Water Service Rate 32 is available to select customers for commercial and industrial process (non-potable) use. In order to qualify for this rate, customers must have existing infrastructure in place to draw water directly from a wellhead, providing that the customer’s premises are adjacent to a City of Hibbing wellhead.
All HPUC water service is rendered under and subject to the General Service Rules and Regulations of the HPUC. Service provided under the Wellhead Water Service Rate 32 is interruptible, and the HPUC reserves the right to discontinue service at any time for any purpose it deems necessary. (back to top)
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