Section 3-20

Cross-Connections and Backflow Protection

  (a)    Prohibition of certain connections and installations. In order to
      provide sanitary protection to the department's water supply and to
      comply with the applicable regulations of the State of Hawaii public
      health service or other Federal agency, as adopted or amended from
      time to time, the department will require that following the effective
      date of these rules and regulations no cross-connections with other
      water supplies, or other physical connections shall exist, or be
      installed, located, maintained or operated which could permit backflow
      of contaminated water or any other dangerous, impure, unsanitary, or
      unpotable substance from the consumer's premises into the department's
      water supply system, except as provided below:
      (1) Cross-connections with other water supplies.  Owners (or operators)
          of presently existing water supplies which are in active use and
          cross-connected to the department's system will be required to
          secure permits for the continuance of such cross-connection.
          Permits will be granted on a provisional basis, renewable yearly,
          under the following conditions:
          a. Where such water supplies are regularly examined by the
             department, or other agencies satisfactory to the department,
             and are approved by the department, as acceptable, safe and
             sanitary supplies and continue as such at all times while the
             connections are in existence.
          b. Where such water supplies do not meet the requirements of a.
             above, are not normally under pressure and are maintained
             solely for fire fighting purposes and where adequate protection
             against backflow to the department's system is provided by
             mechanical or other methods or devices satisfactory to the
             department.
             The department may waive the requirement of a permit and allow
             cross-connections to be continued or established if the
             connections are with water supplies defined as primary or
             community supplies by the State department of health and
             approved by the department and the State department of health
             as acceptable, safe and sanitary supplies.
      (2) Other physical connections.  Other physical connections may be
          permitted if, in the judgment of the department, adequate
          protection can be provided the water supply of the department
          against backflow by the installation of mechanical or other methods
          or devices approved by the department and installed, maintained
          and operated by the consumer  In a manner satisfactory to the
          department at all times; provided however, that the department may
          require the consumer to eliminate or rearrange designated plumbing
          or piping connections or fixtures, or to install a backflow device
          at the meter or other location, subject to the approval of the
          department, as an added safety measure in addition to any and all
          other backflow protection required or provided by mechanical or
          other methods or devices, whenever (1) the consumer is engaged in
          the handling of dangerous or corrosive liquids or industrial or
          process waters, highly contaminated water or sewage, or is engaged
          in the medical or dental treatment of persons who might have
          diseases transmittable by water, or whenever (2) in the judgment of
          the department there exists a danger of backflow into the
          department's main because of the possibility of unauthorized
          connections being created through noncompliance or inadvertence
          on account of the complexity of the system or systems or because
          of failure by the consumer to provide adequately qualified
          personnel and supervision for maintenance and extension of the
          consumer's piping system or systems, or for any other sufficient
          reason or cause.
  (b)    Separate pressure system.  The department will require the installation
      of mechanical or other methods or devices on the consumer's side of
      the meter whenever the consumer maintains a separate pressure system
      or a separate storage facility, or in any way increases the pressures
      of the water within his premises above the pressure furnished by the
      department or has such equipment devices or arrangement of piping,
      storage or industrial methods or processes that might under certain
      conditions raise the pressure of the water within his premises above
      the pressure of the water in the mains of the department.  Plans for
      such installation must be approved by the department.
  (c)    Pressure regulation required of consumer.  As a protection to the
      consumer's plumbing system a suitable pressure relief valve must be
      installed and maintained by him at his expense when backflow devices
      are installed on the consumer's side of the meter.
  (d)    Location and inspection of protective devices.  Any device installed
      for the prevention of backflow, as may be required under these rules
      and regulations, shall (unless the department approves otherwise in
      writing), be located above ground and in such a manner as to be safe
      from flooding or submergence in water or other liquids, properly
      protected from external damage, freely accessible and with adequate
      working room for inspections, testing and repairing.
         All such devices shall be tested by owner at least once every fourth
      months and inspected internally not less than once annually. Repairs,
      replacements of parts, etc., shall be made immediately at the expense
      of the consumer.  Making of tests and annual inspections shall be the
      responsibility of the consumer and shall be made by the consumer or
      other qualified person or persons in accordance with methods acceptable
      to the department.  Records of tests and inspection shall be made on
      forms prescribed by the department and a copy of such records shall be
      furnished to the department.  Failure of the consumer to make the
      proper tests and submission of records may, at the option of the
      department, result in the department's making the tests, needed repairs
      and replacements and charging the costs thereof to the consumer.
  (e)    Affidavit of compliance.  Upon request of the department, the consumer
      shall present an affidavit either certifying to the fact that there
      are no connections or other installations of the type prohibited in
      paragraph (a) of Sec. 3-20 on his premises or describing in detail all
      non-conforming connections or installations.
  (f)    Conformance with laws and ordinances.  The several conditions relative
      to the installation and maintenance of cross-connections and other
      physical connections referred to in this section shall be subject to
      change to meet changing requirements of the state and federal health
      authorities and of the building code of the county of Maui.
  (g)    Discontinuance of service for non-compliance.  Failure on the part of
      the consumer to comply with the department's requirements relative to
      cross-connections and backflow protection will be sufficient reason
      for discontinuing service until such time as the requirements have
      been met.