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Chapter 3 - STANDARDS AND PROCEDURES FOR
WATER AND WASTEWATER CONNECTIONS |
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| Sec. 3.01 General
Construction and Connection Procedures
(Amended effective January 7, 2008)
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(a) Any
person desiring to make a
connection to or receive service
from either the water
distribution or wastewater
collection system serving the
District must first obtain a
permit from the District. A
permit for water service or
sewer service shall not be
issued until a completed
application form has been
submitted to the District and
the appropriate fee has been
paid to the District. A person
shall not maintain a service
connection with the District
freshwater distribution system
unless the person has entered
into a Water Service Agreement
with the District. A person
shall not maintain a service
connection with the District
sanitary sewer system unless the
person has entered into a
Sanitary Sewer Service Agreement
with the District. A person
shall not maintain a service
connection with the District’s
water and/or sewer system unless
the person has entered into a
Utility Line Easement with the
District. Any person applying
for service shall comply with
the applicable requirements of
Chapter 2 of these Rules. |
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(b) The
person proposing to actually
make a connection shall be
responsible for determining the
location of all existing
utilities and services in the
work area before making any
connection and that person shall
also be responsible for the
immediate repair of any damage
to the existing utilities,
services and facilities that may
result from his work. The
utilities, facilities and
services to which this provision
applies include, but are not
limited to, electric lines,
boxes and transformers;
television cable facilities;
water lines; wastewater lines;
telephone facilities; curbs and
concrete flat work; and
irrigation systems. Information
on the location of most of the
utilities, services and
facilities can be obtained from
the One-Call Service, Telephone
No. 1-800-344-8377. |
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(c) All
connections (taps) to the water
distribution system shall be
made by the District. After a
connection is made to the
wastewater collection system
serving the District pursuant to
permission granted by the
District Representative, and
before the connecting line and
connections are covered or
enclosed with dirt or any other
material, a District
Representative shall inspect the
same to determine whether or not
they have been properly
installed in accordance with the
requirements of this Chapter 3,
the connection permit, and the
District's “Procedures for Field
Connections to Sewer Collection
System,”. The
District Representative shall
also determine whether the
bedding material to be used to
cover or enclose the connecting
line and connections are
suitable under the standards
required by this Chapter 3 and
the connection permit to insure
the connecting line will operate
and function properly and remain
functional and operational after
it is placed in use, under
normal and usual operating
conditions. The person to whom
the permit is issued shall be
responsible for covering or
enclosing the connecting line
and connections with proper
materials authorized and
approved by the District
Representative. |
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(d) The
person making a tap or
installing a service line shall
bore under the paved streets
unless prior approval to cut
streets has been granted by a
District Representative. In such
case, the person shall backfill
the cuts he makes in paved
streets. He shall fill the cuts
with District-approved sand,
road base and cement materials
and compact the same to
standard, acceptable densities
as established by the Smith
County Road & Bridge Department.
The District will not be
responsible for applying the
actual paving material on top of
the road base material. |
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(e) All
water and wastewater connection
lines and materials, except
water meters, shall be furnished
by the party installing the
lines. Water meters shall be
furnished by the District at the
expense of the customer. |
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| Sec. 3.02
Standards Governing Water Service Lines
And Connections |
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(a) These
rules govern the installation of
all water service connections
with the water system serving
the District. All taps and
service connections with the
District freshwater distribution
system shall be constructed out
of materials and installed in
the manner required by the then
effective “Procedures for Field
Connections to Water System”
approved by the District. |
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(b) As used
in this section 3.02, "service
line" means the water service
pipe from the foundation of the
residential or commercial
building to the water service
stub or water main owned by the
District. |
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(c) Except
as may be authorized pursuant to
section 2.05 of these Rules,
only one service line connection
to the District's water system
is permitted for each single
family dwelling, and each single
family dwelling unit shall have
one water meter through which
all water to the unit shall flow
and be metered. |
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(d) The
following requirements apply to
water connection facilities: |
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(1) Water
pipe and fittings shall be of
brass, copper, cast iron,
galvanized malleable iron,
galvanized wrought iron,
galvanized steel, or other
approved materials.
Asbestos-cement, FE, or PVC
water pipe manufactured to
recognized standards may be used
for cold water distribution
systems outside a building. |
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(2) Cast
iron fittings up to and
including two (2) inches in size
shall be galvanized. |
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(3) All
malleable iron water fittings
shall be galvanized . |
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(4) Piping
and tubing which has previously
been used for any purpose other
than for potable water systems
shall not be used. |
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(5) Valves
up to and including two (2)
inches in size shall be of brass
or other approved material.
Sizes over two (2) inches may
have cast iron or brass bodies.
Each gate valve shall be a
full-way type with working parts
of non-corrosive material. |
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(6) A full
way gate valve controlling all
outlets shall be installed on
the discharge side of each water
meter. |
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(7) Water
service lines or any underground
water pipes shall not be run or
laid in the same trench with
non-metallic sewer or drainage
piping, except as provided
below. Water service lines and
wastewater service lines shall
be not less than nine (9) feet
apart horizontally and shall be
separated by undisturbed or
compacted earth. |
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(8) The
water service line may be placed
in the same trench with the
wastewater service line provided
all three of the following
conditions are met: |
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(a) The
bottom of the water service
line, at all points, shall be at
least twelve (12) inches above
the top of the wastewater
service line. |
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(b) The
water service line shall be
placed on a solid shelf
excavated at one side of the
common trench and the two lines
shall be separated by a minimum
of eighteen (18) inches. |
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(c) The
water service line shall be
installed with water tight
joints tested to a minimum of
150 PSI. |
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(9) Water
service lines shall be bedded in
washed sand to provide six (6)
inches of cushion below the
line. The water service line
shall be bedded properly in the
sand before the District
inspection is requested, and the
sand for the cover shall be on
the site at the time. The trench
bottom and walls shall be
cleared of all protruding rocks
which could damage the pipe
before the sand bedding is
placed. Washed sand shall be
filled to the same elevation as
the top of the adjacent curb and
shall be compacted to a Proctor
density of 90%. No rocks or
other material over six inches
(6”) in diameter shall be used
for backfill over the sand. |
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(e) A water
meter and a District-approved
meter box shall be installed for
each water connection at the
location specified by the
District Representative. If a
water box subsides or tilts more
than one inch (1") within one
year after it is installed, the
person or firm who installed it
shall be obligated to raise or
straighten the meter box to the
proper position. The following
materials shall be used for the
installation of all water meters
and meter boxes in the District: |
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(1) U-Brach
-James Jones Model J-1S7S or
approved equal. |
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(2) Flat
Head Angle Stop -James Jones
Model J-1526 or approved equal. |
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(3) P.E.
Heavy Wall service -ASTM 2737
line or approved equal. |
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(4) Concrete
meter box with metal lid or poly
material box with a metal lid
that the District has approved. |
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(5) Drain
tile and metal lid to cover
owners cut-off valve. |
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(6) 6 1/2" X
3/4" brass meter nipple -James
Jones J-130 or approved equal. |
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| The above list is a
typical service list to connect either
5/8" or 3/4" meters. Installation of
larger meters shall use the same quality
materials as above with appropriate
increases in size. |
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(f) Potable
water supply piping, water
discharge outlets, backflow
prevention devices or similar
equipment shall not be located
so as to make possible the
submergence of such equipment in
any contaminated or polluted
liquid or substance. |
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(g) Lawn
sprinkling systems shall be
equipped with an approved
backflow prevention assembly
installed on the discharge side
at the point of delivery to the
sprinkler system on the service
line. |
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(h) No
private water supply shall be
interconnected with the public
water supply. |
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(i) Swimming
pool makeup water shall be
protected by means of an
approved backflow prevention
assembly or an adequate air gap. |
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(j) No water
supply system or portion thereof
shall be covered or concealed
until it first has been tested,
inspected and approved by
District Representatives. |
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Sec. 3.03
Standards Governing Wastewater Service
Lines
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(a) These
rules govern the installation of
all wastewater connections with
the wastewater system serving
the District. Application for
Sanitary Sewer Service must be
filed and the connection fee
paid in accordance with Sec.
3.06 (Connection Permits) prior
to construction of the service
line. Construction must not
begin until authorized by the
District and the required form
is completed. |
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(b) As used
in this Section 3.03, "service
line" means the wastewater line
from the foundation of the
residential or commercial
building to the wastewater
collection line owned by the
District. |
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(c) Only one
service line connection to the
District's wastewater collection
system is permitted for each
residential or commercial
building. |
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(d) Only the
following types of pipe and
fitting materials are approved
for constructing service lines.
Pipe and fittings in each
individual service line shall be
of identical material.
Poly-vinyl Chloride PSM (PVC)
pipe conforming to ASTM
Specification D3034-SDR 35
installed in accordance with
ASTM D2321 or Schedule 40.
Recommend Schedule 40 PVC. |
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(e) A
PVC Schedule 40 or SDR 35 4" x
6" increaser shall be used at
the property line for all
wastewater connections to
increase the size of the service
line to tie into the wastewater
service stub. |
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(f) The
service line shall be installed
with water tight joints and
tested to a minimum of 150 PSI
without leaking. |
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(g) Minimum
sizes of service lines, except
as approved in writing by the
District’s engineer or operator,
shall be as follows: |
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(1)
Residential Building - Four
inches (4") in diameter |
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(2)
Commercial Building - Six inches
(6") in diameter |
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(h) Minimum
grades for service lines shall
be as follows: |
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(1) 4 inch
pipe – one-foot drop per hundred
feet (1%) |
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(2) 6 inch
pipe – six-inch drop per hundred
feet (0.5%) |
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(3) 8 inch
pipe – four-inch drop per
hundred feet (0.33%) |
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(i) Maximum
grades for service lines shall
be as follows: |
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(1) 4 inch
pipe – two and one-half feet
drop per hundred feet (2.5%) |
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(2) 6 inch
pipe – one and one-half feet
drop per hundred feet (1.5%) |
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(3) 8 inch
pipe – one-foot drop per hundred
feet (1%) |
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(j) Service
lines shall be constructed to
true alignment and grade. Warped
and/or sagging lines will not be
permitted. Service lines shall
be bedded in washed sand to
provide six inches (6") of
cushion below the line. The
service line shall be bedded
properly in the sand before the
District inspection is
requested, and the sand for the
cover shall be on the site at
the time. The trench bottom and
walls shall be cleared of all
protruding rocks, which could
damage the line before the sand
bedding is placed. Washed sand
shall be filled to the same
elevation as the top of the
adjacent curb and shall be
compacted to a Proctor density
of 90%. No rocks or other
material over six inches (6") in
diameter shall be used for
backfill over the sand. |
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| Sec. 3.04
Connection of Building Sewer Outlet to
Service Lines |
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(a) The
building tie-on connection will
be made directly to the stub-out
from the building plumbing at
the foundation on all waste
outlets. A clean-out shall be
installed at the connection of
the service line no farther than
two (2) feet from the slab of
the building. |
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(b)
Water-tight adapters of a type
compatible with the materials
being joined will be used at the
point of connection of the
service line to the building
plumbing. No cement grout
materials will be permitted. See
“Procedures for Field
Connections to Sewer Collection
System” |
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(c) Existing
“wye” and stack connections must
be utilized for connection of
the service line to the
District's wastewater collection
line unless an exception is
permitted by a District
Representative or Operator. |
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| Sec. 3.05
Fittings and Cleanouts |
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(a) No bends
or turns at any point in the
service line may be greater than
45 degrees. |
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(b) Each
horizontal service line will be
provided with a clean-out at its
upper terminal, and each such
run of piping which is more than
ninety feet (90) in length will
be provided with a clean-out for
each ninety (90) feet or
fraction thereof, in the length
of such piping. |
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(c) Each
cleanout will be installed so
that it opens in a direction
opposite to the flow of the
waste and, except in the case of
“wye” branch and end-of-the-line
cleanouts, cleanouts will be
installed vertically above the
flow line of the pipe. |
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(d)
Clean-outs will be made with
air-tight mechanical plugs. |
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| Sec. 3.06
Connection Permits |
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(a)
Application for Sanitary Sewer
Service must be filed prior to
construction of the service line
and any applicable fees as set
forth in Schedule A should
accompany this application (Form
#2006-2). Application forms are
available from the District
office at 155 LaSalle Drive, the
Emerald Bay Club business
office, or on the District’s
internet web page at
www.emeraldbay-tx.gov.
Construction must not begin
until authorized by the District
and the required form is
completed. |
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(b) When the
service line is completed, and
prior to backfilling the pipe
trench, the applicant for sewer
service shall request an
inspection of the installation.
Requests for inspections shall
be made to the District at least
twenty-four (24) hours in
advance of the inspection. |
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(c) The
physical connection to the
District’s sewer main will be
made by use of an adapter of a
type compatible with materials
being joined. The connection
shall be water-tight. No cement
grout materials are permitted.
See “Procedures for Field
Connections to Sewer Collection
System” |
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(d) No
wastewater service line or
connection, or portion thereof,
shall be covered or concealed
until it first has been tested,
inspected and approved by
District Representatives. In the
event that the pipe trench and
connection are backfilled before
inspection is completed, the
District will have same
uncovered for inspection at the
property owner’s expense. |
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(e)
Backfilling of service line
trench must be accomplished
within twenty-four (24) hours of
inspection and approval. No
debris will be permitted in the
trench. |
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(f)
The District will not provide
sewer service nor will a
connection permit be granted
until an inspection confirms
that all requirements of this
Chapter 3, Section 3.03 through
Section 3.07 have been met. |
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| Sec. 3.07
Prohibited Uses and Penalties |
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(a) No waste
material, which is not
biologically degradable, will be
permitted to be discharged into
the District’s sewage
facilities, including oil,
grease, lubricants, corrosive
chemicals, or mud and debris
accumulated during service line
installation. |
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(b) No
septic tank or leeching field
will be permitted to be drained
or discharged into the
District’s sanitary sewer
facilities. |
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(c) No
facial tissue, paper or cloth
towels, cloths, napkins,
sanitary napkins, tampons, or
contraceptives shall be
discharged into the District’s
sanitary sewer system. |
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(d) No
downspouts, yard or street
drains, or rain gutters will be
permitted to be drained or
discharged into the District’s
sanitary sewer facilities. |
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(e) No
residential swimming pool or hot
tub will be connected to the
District’s sanitary sewer for
any reason. |
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(f) If a
Person, intentionally or
knowingly, violates the
requirements of this regulation,
then the District may terminate
the sanitary sewer service
connection that is being used
for a Prohibited Use. |
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| Sec. 3.08
Replacement of Faulty Sanitary Sewer
System Tap |
| If a tap to the
District sanitary sewer system fails,
then the tap shall be replaced by the
District. The new tap shall be installed
in the manner required by the then
effective “Procedures for Field
Connections to Sewer Collection System”
approved by the District. |
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(a) If the
original tap that was replaced
was not inspected and approved
by the District at the time it
was installed, then the cost of
the new tap shall be paid
one-half by the District and
one-half by the Property Owner.
The Property Owner shall be
invoiced by the District for
one-half of the cost of
replacing the tap. The invoice
shall be paid within thirty (30)
days after the invoice is sent.
If the Property Owner fails to
pay the invoice within thirty
(30) days, then the District may
terminate the sanitary sewer
service connection. |
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(b) If the
original tap that was replaced
was inspected and approved by
the District at the time it was
installed, then the cost of the
new tap shall be paid by the
District. |
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(c) If any
tap is damaged either through
the fault of the property owner
or the contractor of a property
owner, the repair or replacement
of the tap must be at the
expense of the property owner. |
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| Sec. 3.09 Private
Sewage Collection Tanks |
| This
regulation is adopted to ensure that
rainwater or groundwater does not enter
the District’s sanitary sewer system
through private sewage collection tanks.
If a Property Owner is required to
install a private collection tank and
pump for a new sewer connection, or to
replace a private collection tank and
pump on an existing sewer connection, in
order to pump the sewage into the
District sewer main, then the Property
Owner shall install a waterproof
collection tank constructed and
installed in the manner required by the
then effective “Procedures for Field
Connections to Sewer Collection System”
approved by the District. |
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Sec. 3.10
Standards Governing Backflow Prevention
And Cross-Connection Control.
A Texas Commission on Environmental
Quality (TCEQ) approved backflow
prevention device will be required on
all newly installed lawn sprinkling
systems and on existing lawn sprinkling
systems upon change of ownership, unless
mandated at an earlier date by the TCEQ,
that are connected to the District’s
potable water distribution system. Lawn
sprinkling systems shall be equipped
with an approved Backflow Prevention
Assembly installed on the discharge side
of the point of delivery on the service
line. |
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(a)
Definitions, as used in this
Section 3.10: |
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(1)
"Administrative Authority" means
the individual official, board,
department, or agency
established and authorized by a
state, county, city, or other
political subdivision created by
law to administer and enforce
the provisions of the
cross-connection control
program. |
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(2) "Air
gap" means a physical separation
between the free flowing
discharge end of a potable water
supply pipeline and an open or
non-pressure receiving vessel.
An “approved air gap” shall be
at least double the diameter of
the supply pipe measured
vertically above the overflow
rim of the vessel--in no case
less than 1 inch. |
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(3)
"Approved" as used herein in
reference to an air gap, means a
double check valve assembly, a
reduced pressure principle
backflow prevention assembly or
other backflow prevention
assemblies or methods shall mean
an approval by the
administrative authority having
jurisdiction. |
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(4)
"Atmospheric Vacuum Breaker (AVB)"
means an assembly containing an
air inlet valve, a check seat
and an air inlet port(s). The
flow of water into the body
causes the air inlet valve to
close the air inlet port(s).
When the flow of water stops,
the air inlet valve falls and
forms a check valve against
backsiphonage. At the same time
its opens the air inlet port(s)
allowing air to enter and
satisfy the vacuum. A shutoff
valve immediately upstream may
be an integral part of the
assembly, but the assembly shall
not be subjected to operating
pressure for more than twelve
(12) hours in any twenty-four
(24) hour period. An atmospheric
vacuum breaker is designed to
protect against a non-health
hazard (i.e., pollutant) or a
health hazard (i.e.,
contaminant) under a
backsiphonage condition only. |
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(5)
"Backflow" means the undesirable
reversal of flow of water or
mixtures of water and other
liquids, gases or other
substances in the distribution
pipes of the potable supply of
water from any source or
sources. See terms "Backsiphonage"
(10) and "Backpressure" (9). |
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(6)
"Backflow Prevention Assembly
–Approved" means an assembly
that has been investigated and
approved by the Administrative
Authority having jurisdiction.
The approval of backflow
prevention assemblies by the
Administrative Authority shall
be on the basis of a favorable
laboratory and field evaluation
report. |
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(7)
"Backflow Prevention
Assembly-Type" means any
effective assembly used to
prevent backflow into a potable
water system. The type of
assembly used shall be based on
the existing or potential degree
of hazard and backflow
condition. The types of backflow
prevention assemblies are: |
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(A)
Atmospheric Vacuum Breaker
Backsiphonage Prevention
Assembly. (AVB) See (4). |
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(B) Double
Check Valve Backflow Prevention
Assembly(DC) See (14). |
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(C) Double
Check-Detector Backflow
Prevention Assembly (DCDA) See
(15). |
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(D) Pressure
Vacuum Breaker Backsiphonage
Prevention Assembly (PVB) See
(18). |
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(E) Reduced
Pressure Principle Backflow
Prevention Assembly (RP) See
(20). |
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(F) Reduced
Pressure Principle-Detector
Backflow Prevention Assembly (RPDA)
See (21) |
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(G)
Spill-Resistant Pressure Vacuum
Breaker Backsiphonage Prevention
Assembly (SVB) See (24). |
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(8)
"Backflow Prevention Assembly
Tester – Certified" means a
person who has proven his/her
ability to the satisfaction of
the Administrative Authority
having jurisdiction. Each person
who is certified to make field
tests and make reports on
backflow prevention assemblies
shall be conversant with
applicable laws, rules and
regulations and have had
experience in plumbing or pipe
fitting or have other equivalent
qualifications . Tester must
have an approved certification
by the Texas Commission on
Environmental Quality (TCEQ). |
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(9)
"Backpressure" means any
elevation of pressure in the
downstream piping system (by
pump, elevation of piping, or
steam and /or air pressure)
above the supply pressure at the
point of consideration which
would cause, or tend to cause, a
reversal of the normal direction
of flow. |
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(10) "Backsiphonage"
means a form of backflow due to
a reduction in system pressure
which causes a subatmospheric
pressure to exist at a site in
the water system. |
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(11) "Check
Valve-Approved" means a check
valve that is drip-tight in the
normal direction of flow when
the inlet pressure is at least
one (1) psi (pound per square
inch) and the outlet pressure is
zero. |
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(12)
"Contamination" means an
impairment of the quality of the
water which creates an actual
hazard to the public health
through poisoning or through the
spread of disease by sewage,
industrial fluids, waste, or
other causes. |
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(13)
"Cross-Connection" means any
unprotected actual or potential
connection or structural
arrangement between a public or
a consumer's potable water
system and any other source or
system through which it is
possible to introduce into any
part of the potable system any
used water, industrial fluid,
gas, or substance other than the
intended potable water with
which the system is supplied.
Bypass arrangements, jumper
connections, removable sections,
swivel or change-over devices
and other temporary or permanent
devices through which or because
of which backflow can occur are
considered to be
cross-connections. A direct
cross-connection shall mean a
cross-connection which is
subject to both Backsiphonage
and Backpressure. An indirect
cross-connection shall mean a
cross-connection which is
subject to Backsiphonage only. |
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(14) "Double
Check Valve Backflow Prevention
Assembly (DC)" means an assembly
composed of two independently
acting approved check valves,
including tightly closing
resilient seated shutoff valves
attached at each end of the
assembly and fitted with
properly located resilient
seated test cocks. This assembly
shall only be used to protect
against a non-health hazard.(i.e.
Pollutant). |
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(15) "Double
Check-Detector Backflow
Prevention Assembly (DCDA)"
means a specially designed
assembly composed of a line-size
approved double check valve
assembly with a bypass
containing a specific water
meter and an approved double
check valve assembly. The meter
shall register accurately for
only very low rates of flow up
to 3 gpm (gallons per minute)
and shall show a registration
for all rates of flow. This
assembly shall only be used to
protect against a non-health
hazard (i.e. pollutant). The
DCDA is primarily used on fire
sprinkler systems. |
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(16)
"Hazard-Degree of" means either
a pollutional (non-health) or
contamination (health) hazard
and is derived from the
evaluation of conditions within
a system. |
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(17)
"Pollution" means an impairment
of the quality of the water to a
degree which does not create a
hazard to the public health but
which does adversely and
unreasonably affect the
aesthetic qualities of such
waters for domestic use. |
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(18)
"Pressure Vacuum Breaker
Backsiphonage Prevention
Assembly (PVB)" means an
assembly containing an
independently operation
internally loaded check valve
and an independently operation
loaded air inlet valve located
on the discharge side of the
check valve. The assembly is to
be equipped with properly
located resilient seated test
cocks and tightly closing
resilient seated shutoff valves
attached at each end of the
assembly. This assembly is
designed to protect against a
non-health hazard (i.e.,
pollutant) or a health hazard
(i.e., contaminant) under a
backsiphonage condition only. |
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(19)
"Reclaimed Water" means water
which, as a result of treatment
of wastewater, is suitable for a
direct beneficial use or a
controlled use that would not
otherwise occur, and is not safe
for human consumption. |
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(20)
"Reduced Pressure Principle
Backflow Prevention Assembly
(RP)" means an assembly
containing two independently
acting approved check valves
together with a hydraulically
operating, mechanically
independent pressure
differential relief valve
located between the check valves
and at the same time below the
first check valve. The unit
shall include properly located
resilient seated test cocks and
tightly closing resilient seated
shutoff valves at each end of
the assembly. This assembly is
designed to protect against a
non-health (i.e., pollutant) or
a health hazard (i.e.,
contaminant). This assembly
shall not be used for backflow
protection of sewage or
reclaimed water. |
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(21)
"Reduced Pressure
Principle-Detector Backflow
Prevention Assembly (RPDA)"
means a specially designed
assembly composed of a line-size
approved reduced pressure
principle backflow prevention
assembly with a bypass
containing a specific water
meter and an approved reduced
pressure principle backflow
prevention assembly. The meter
shall register accurately for
only very low rates of flow up
to 3 gpm and shall show a
registration for all rates of
flow. This assembly shall be
used to protect against a
non-health hazard (i.e.,
pollutant) or a health hazard
(i.e., contaminant). The RPDA is
primarily used on fire sprinkler
systems. |
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(22)
"Sanitary Sewer" means the pipe
that carries sewage |
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(23)
"Service Connection" means the
terminal end of a service
connection from the public
potable water system, (i.e.,
where the District may lose
jurisdiction and sanitary
control of the water at its
point of delivery to the
consumer’s water system). A
water meter is installed at the
end of the service connection.
The service connection shall
mean the downstream end of the
water meter. |
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(24)
"Spill-Resistant Pressure Vacuum
Breaker Backsiphonage Prevention
Assembly (SVB)" means an
assembly containing an
independently operating
internally loaded check valve
and independently operating
loaded air inlet valve located
on the discharge side of the
check valve. The assembly is to
be equipped with a properly
located resilient seated test
cock, a properly located
bleed/vent valve, and tightly
closing resilient seated shutoff
valves attached at each end of
the assembly. This assembly is
designed to protect against a
non-health hazard (i.e.,
pollutant) or a health hazard
(i.e., contaminant) under a
Backsiphonage condition only. |
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(25) "Water
– Potable" means water from any
source which has been
investigated by the health
agency having jurisdiction, and
which has been approved for
human consumption. |
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(26) "Water
– Used" means any water supplied
by the District to a customer’s
water system after it has passed
through the service connection
and is no longer under the
control of the District. |
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(b) Backflow
Prevention and Cross-Connection
Control Policy: |
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(1) No
water service connection to any
premise shall be installed or
maintained by the District
unless the water supply is
protected as required by state
law, the regulations of the TCEQ
and this Section 3.10, known as
the Cross Connection Control
Program (CCCP). Service of water
to any premises shall be
discontinued by the District if
a Backflow Prevention Assembly
required by the CCCP is not
installed, tested and
maintained, or if it is found
that a Backflow Prevention
Assembly has been removed or
bypassed, or if an unprotected
cross-connection exists on the
premises. Service will not be
restored until such conditions
or defects are corrected. |
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(2)
The customer’s system shall be
open for inspection at all
reasonable times to the
authorized District
Representative to determine
whether unprotected
Cross-Connections or other
structural or sanitary hazards,
including violations of these
regulations, exist. When such a
condition becomes known, the
District shall deny or
immediately discontinue service
to the premises by providing for
a physical break in the service
line until the customer has
corrected the condition(s) in
conformance with the CCCP. |
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(3) An
approved Backflow Prevention
Assembly shall also be installed
on each service line to a
customer’s water system at or
near the property line or
immediately inside the building
being served. Lawn sprinkling
systems shall be equipped with
an approved Backflow Prevention
Assembly installed on the
discharge side of the point of
delivery on the service line. |
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(4) In
the case of any premises where
there is water or a substance
that would be objectionable but
not hazardous to health, if
introduced into the public water
system, an approved Double Check
Valve Backflow Prevention
Assembly shall be installed. |
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(5) In the
case of any premises where there
is any material dangerous to
health which if handled in such
a fashion as to create an actual
or potential hazard to the
public water system, there shall
be an Approved Air Gap or an
approved Reduced Pressure
Principle Backflow Prevention
Assembly to protect the public
water system. |
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(6) In the
case of any premises where there
are unprotected
cross-connections, either actual
or potential, the public water
system shall be protected by an
Approved Air Gap or an approved
Reduced Pressure Principle
Backflow Prevention Assembly at
the service connection. |
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(7) In the
case of any premises where,
because of security requirements
or other prohibitions or
restrictions, it is impossible
or impractical to make a
complete in-plant
Cross-Connection survey, the
public water system shall be
protected against Backflow from
the premises by either an
Approved Air Gap or an approved
Reduced Pressure Principle
Backflow Prevention Assembly on
each service to the premises. |
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(8) Any
Backflow Prevention Assembly
required herein shall be a make,
model and size approved by the
District. The term “Approved
Backflow Prevention Assembly”
shall mean an assembly that has
been manufactured in full
conformance with the standards
established by the American
Water Works Association
entitled: AWWA/ANSI C510-92
Standard for Double Check Valve
Backflow Prevention Assemblies:
AWWA/ANSI C511-92 Standard for
Reduced Pressure Principle
Backflow Prevention Assemblies.
The AWWA standards and
specifications, the Subchapter
D: Section 290.44 of the Rules
and Regulations for Public Water
Systems, and any and all
Procedures for Field Connections
to Water System and Sewer
Collection System adopted by the
District. |
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(9) It shall
be the duty of the customer at
any premises where Backflow
Prevention Assemblies are
installed to have a field test
performed by a certified
Backflow Prevention Assembly
Tester upon installation of such
assemblies for non-health (i.e.,
pollutant) conditions. Testing
for a health hazard (i.e.,
contaminant) in the assembly
shall be conducted on
installation and annually from
the installation date. |
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(10) The
District is authorized to make
all necessary and reasonable
rules and policies with respect
to the enforcement of this
resolution. |
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