READ AND **REMOVE THIS PAGE** BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

\* \* \* \* \* \* \* \* \* \*

[DIVISION 13: SPECIAL CONSTRUCTION]{.underline}

SECTION 13209 ‑ WATER STORAGE TANKS

USE: Furnishing and installing above ground steel water storage tanks,
and other appurtenances necessary to complete the storage tanks. This
section **does not specify flammable liquid storage tanks.**

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[[ ]{.underline}\] provide for
information to be inserted, as appropriate to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface,
**and *italics* within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately).

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED. **Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name Of The Project (upper/lower case).**
Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specifications that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST-110
or call (303) 987-6851.

F. DESIGN NOTES:

Use of a steel water storage tank is a decision that should be made only
after careful consideration of alternatives (concrete, fiberglass,
plastic, glass-fused steel, etc.). AWWA D 100 is a very comprehensive
standard which addresses all aspects of welded steel water storage
tanks. Designers should be familiar with this standard, and use
additional references to specific provisions as appropriate.

Consider freezing potential, and damages that could result from ice
layer movement in the tank. Corrosion protection is part of the design
and installation of any steel water storage tank. This includes an
appropriate paint system, as well as cathodic protection. It is
suggested that painting be addressed in a separate section in division
9, separately from other painting requirements of the project. The
interior paint for any potable eater storage tank should be listed by
the National Sanitation foundation as approved for use in contact with
potable water.

Cathodic protection should be designed in consideration of the
characteristics of the water to be stored, as well as the environment in
which the tank will reside. Either sacrificial aanode (using magnesium
anode) or impressed current systems can be used. Sacrificial anode
systems are generally simpler to design, and often consist of anodes,
electrically bonded to the tank, suspended into the water. Most
cylindrical tanks should have at least three such anodes evenly spaced
at a distance of one-third the tank radius from the sides, extending
about halfway into the depth of the contained water.

1\. **DRAWING DATA REQUIRED: **Drawings should indicate the desired tank
configuration, including only those specific details and dimensions
required beyond the conformance with standards in the specification.
Examples include minimum and maximum water surface elevations, pipe
penetration locations, connecting pipe and valve configuration,
clearances from existing structures or other site features, and types of
foundation. A site plan which establishes horizontal location and shows
all connected lines, including drain and overflow piping is also needed.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes 9/99

Metric: 3/00

Technical Update: 3/00

**SECTION 13209**

**WATER STORAGE TANKS**

**[PART 1: GENERAL]{.underline}**

**1.1 SUMMARY**

**A. Section Includes: \[Furnishing\] \[and\] \[Installing\]
\[Installing with\] \[Government‑furnished property\]
\[Contractor‑furnished and Government‑furnished property\] \[elevated\]
steel water storage tanks, and other appurtenances necessary to complete
the storage tanks.**

**B. Related Sections:**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**LIST ITEMS OF WORK THAT MIGHT LOGICALLY BE FURNISHED AND INSTALLED
UNDER THIS SECTION, BUT INSTEAD ARE SPECIFIED IN ANOTHER SECTION. THIS
ARTICLE IS RARELY REQUIRED.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**1.2 SYSTEM DESCRIPTION**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**MODIFY BELOW PARAGRAPH WHEN REQUIRED BY THE CORROSIVE NATURE OF STORED
WATER, LACK OF PROPER MAINTENANCE FACILITIES, OR BY CLIMATIC CONDITIONS.
**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

** A. Design Requirements: The design fabrication, and erection of the
\[elevated\] tank shall be according to the applicable requirements of
AWWA D 100. Earthquake design shall be for seismic zone \[\_\_\_\]. The
elevated tank shall be designed for a basic wind speed of \[\_\_\_\] km
(\[\_\_\_\] miles) per hour in accordance with ASCE 7 or designed in
accordance with AWWA D 100 wind load design, whichever provides the
greater pressure. \[The elevated tank shall be designed for a snow load
of \[[ ]{.underline}\]psf (\[[ ]{.underline}\] Pa).**

**1.3 SUBMITTALS**

**A. General: Submittals shall be according to \[Section 01009 ‑ General
Information and Requirements.\] \[Section 01331 ‑ Submittal
Procedures.\] and \[Section 01331 ‑ Certificates.\]**

**B. Manufacturer\'s Literature: Submit three copies of manufacturer\'s
descriptive data for the tank, including accessories, components, and
interior and exterior coating systems to be used.**

**C. Shop Drawings: Submit three copies of shop drawings for foundations
and shop drawings of catalog cuts of the steel tank to be used on this
project. Shop drawings shall show types, sizes, and locations of all
panels, members and accessories, metal gauges, welded joints, and other
construction details. Standard welding symbols as recommended by the AWS
shall be used. Provide metallurgical information on the steel used in
the tank system.**

**D. Certificates of Conformance: Submit three copies of written
certification from the supplier of the following Contractor‑furnished
items to be used on this project that they conform to the requirements
of this specification section:**

**1. Tank**

**2. Piping and Fittings**

**3. Valves; Gate, Check, \[and Altitude\]**

**4. Pressure Gauge**

**5. Interior Coating System**

**6. Exterior Coating System**

**7. Work was inspected in accordance with AWWA D 100, Section 11. This
shall meet the requirements of Section 11.2.1 and also cover the
hydrostatic test.**

**F. Design Analyses and Calculations: Submit three copies of the
structural design loading conditions used for the design of entire tank
including the foundation.**

**1.3 QUALITY ASSURANCE**

**A. Failure Criteria: Not limited to the following:**

**1. Evidence of leakage**

**2. Malfunctioning valves**

**3. Blockage of piping**

**4. Contamination of water rendering it not potable**

**5. Misalignment or settlement of tank structure**

**1.4 DELIVERY, STORAGE, AND HANDLING**

**A. Storage: Items which are subject to deterioration by exposure to
the elements must be stored off the ground, in a well‑drained location,
protected from the weather, and accessible for inspection and
handling.**

**1.5 MAINTENANCE**

**A. Touch‑Up Paint: Furnish 1 gallon (3.8 liters) each of inside and
outside paint for field touch‑up for each tank furnished.**

**[PART 2: PRODUCTS]{.underline}**

**2.1 MATERIALS**

**A. Tank: The steel water storage tank shall be fabricated from
materials as shown on the drawings and according to AWWA D 100.**

**B. Accessories: Attached valve pit, access parts and other accessories
shall be constructed as shown on the drawings.**

**C. Pipes: ASTM A 153; appurtenant pipes 4 inches (100 mm) in diameter
or larger shall be welded steel; pipes smaller than 4 inches (100 mm) in
diameter shall be galvanized steel.**

**D. Fittings: ASTM A 153 or ASTM B 633, for threaded pipe.**

**E. Check Valves: AWWA C 508, horizontal swing check valve, flanged
ends, and composition to metal seat.**

**F. Small Valves: ASTM B 62 for valves, 2 inches (50 mm) and smaller.**

**G. Concrete and Reinforcing Steel: For foundations, valve vaults, pipe
supports and blocking shall conform to the requirements of \[Section
03306 - Minor Concrete.\] \[Section 03310 ‑ Structural Concrete.\]**

**2.2 FABRICATION**

**A. Volume and Size of Tank: \[Elevated steel tank\] \[Skid-mounted
horizontal tank\] \[Steel standpipe\] \[Steel ground storage reservoir\]
shall have a minimum active volume of \[[ ]{.underline}\] gallons (\[[
]{.underline}\] cubic meters). High water level shall be at elevation
\[[ ]{.underline},\] with top of foundations at elevation \[[
]{.underline}\]. Range between high and low water level shall be
approximately \[[ ]{.underline}\] feet (\[[ ]{.underline}\] m).
\[Elevations shall be as shown\].**

**B. Elevated Steel Tank: AWWA D 100 for fabrication. Tank shall have an
ellipsoidal or spheroidal top and bottom. Construct tank support tower
of tubular sections. Thoroughly brace tower with horizontal struts and
diagonal tie. Tower columns may be vertical or inclined as the design
may require. Main column splices shall be located at the intersection of
the centerline of the struts. Weld splice plates to hold members in line
and to transmit tension or shearing stresses to which the members may be
subjected. Make connections between tank and columns to distribute the
load over the column sections and the shell of the tank. \[Provide a
balcony at least 2 feet (600 mm) wide and a structural‑steel handrailing
at least 42 inches (1050 mm) high around the balcony. Make balcony floor
plates at least 1/4‑inch (6 mm ) thick and punch or drill for
drainage\]. **

**C. \[Steel Standpipe:\] \[Steel Ground Storage Reservoir:\]
\[Skid-Mounted Horizontal Tank:\] Shall have a standard shell height and
diameter that meet the requirements for selected capacity and high water
elevation according to AWWA D 100.**

**D. Accessories: AWWA D 100, section 7 for \[steel standpipe\] \[steel
ground storage reservoir\] with the following additions or
modifications. Safety devices are required. Pipe connections shall be
\[[ ]{.underline}\]inches (\[[ ]{.underline}\]) mm in diameter for
inlet, \[[ ]{.underline}\]inches (\[[ ]{.underline}\]) mm in diameter
for outlet, and \[[ ]{.underline}\]inches(\[[ ]{.underline}\]) mm in
diameter for draining of tank. Overflow shall be \[stub\] \[to ground\]
of \[[ ]{.underline}\]inches (\[[ ]{.underline}\]) mm in diameter. Vent
connection shall be \[[ ]{.underline}\]inches (\[[ ]{.underline}\]) mm.
A manhole cover on top of the tank will provide access to the inside of
the tank.**

**E. Tank Openings: See Work Data Sheet.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**Delete information when corrosion protection is not required. **

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**F. Corrosion Protection: Shall be sacrificial anodes or other
corrosion protection as recommended by the tank manufacturer.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**Several options for surface preparation and paint systems are
available. Check references closely and use coating manufacturer's
representatives for information as appropriate. Attention to coating
volatile organic compounds and toxicity is also important.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**G. Shop Painting:**

**1. After sand blasting, paint shall be applied on the inside of the
tank before oxidation occurs. Maximum time between sand blasting and
painting shall be 24 hours. Surface preparation and painting the inside
of tank shall conform to NSF 61 and SSPC Manual, Good Painting
Practices, Volume 1, Chapter 14. \[Use formula 151, with white or blue
finish coat. Use contrasting color for each coat.\]\[Use commercially
available polyamide epoxy system.\] **

**2. Surface preparation and painting of the outside of tank shall be in
conformance with SSPC Manual, Good Painting Practices, Chapter 14,
Volume 1.**

**H. Heating: In cold climates, water tanks that serve fire systems and
those where the daily consumption is small will be provided with heating
facilities according to NFPA 22. The size of the heating system may be
reduced by an amount commensurate with the W (Btu per hour) input from
makeup water during periods of minimum consumption. However, the heating
facility will be capable of maintaining the coldest water in the tank at
a minimum temperature of 42 degrees F. (6 degrees C). (Do not provide
frostproof casings in lieu of heat for large riser tanks.**

**2.3 SOURCE QUALITY CONTROL**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**DETERMINE IF SHOP TESTING IS REQUIRED. WHEN IT IS, THEN DETERMINE
WHETHER THE GOVERNMENT OR THE CONTRACTOR IS GOING TO PERFORM THE
REQUIRED TESTING AND EDIT ACCORDINGLY.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**A. Testing: \[The Government will perform the required testing,
recording, and distributing of the results.\] \[The Government will make
arrangements for a certified independent testing laboratory to perform
the required testing, recording, and distributing of the results.\]
\[Conduct the performance and acceptance tests according to Section 4 of
AWWA C 600.\] \[Furnish necessary equipment, labor, and materials to
conduct the testing. Testing shall be conducted in the presence of the
Contracting Officer.\] \[Arrange for a certified independent testing
laboratory, according to the requirements of Section 01458 - Testing
Laboratory Services, to perform the required testing, recording, and
distributing of the results.\]**

**B. Radiographic Inspection: Shop fabricated steel storage tanks shall
have radiographic inspection of weld joints. Perform the inspection
according to the requirements of AWWA D 100, section 11, Inspection and
Testing.**

**1. Personnel performing radiographic inspection shall be qualified
according to SNT-T-1A. Only individuals qualified NDT Level II, or NDT
Level I working under an NDT level II shall perform testing.**

**2. Unacceptable welds shall be repaired according to the AWS D 1.1 at
no additional cost to the Government.**

**3. Furnish radiographic test reports and film to the Contracting
Officer. Repair welds determined to be unacceptable on the basis of the
test results.**

**4. When a weld is unacceptable on the basis of a visual inspection,
additional radiographs shall be made of that weld. When the weld is
unacceptable, the Contractor shall pay the cost of the additional
radiograph and repair.**

**5. After acceptance of the structure, the radiographs and written
reports will become the property of the Government.**

**[PART 3: EXECUTION]{.underline}**

**3.1 PREPARATION**

**A. Clearing and Grubbing: Shall be performed according to Section
02231 ‑ Clearing and Grubbing.**

**B. Foundations: Construct foundations \[including foundation design\]
according to AWWA D 100 for the general type of foundation indicated.**

**3.2 INSTALLATION**

**A. Placement: Install the tanks according to the manufacturers\'
instructions and these specifications and drawings. Consult and comply
with local codes. Failure to follow these installation instructions may
result in tank failure.**

**1. Tanks should not be dropped, rolled or impacted. Chock the tanks
until ready for installation.**

**2. Use installed lift lugs to lift tank. Guide the tank with
guidelines. Do not use chains or cables around the tanks. When tanks
have to be moved, they must be set on smooth ground free of rocks and
foreign objects and rechocked. Capacity of lifting equipment should be
checked before installation. When tanks are dropped or impacted after
initial test, retest tanks and soap areas of impact to check for tank
damage. When damage has occurred, do not attempt repairs. Contact the
area tank sales representative for further instructions.**

**3. When the tank has been installed and tested for leakage, paint
areas needing touch‑up. Paint piping exterior to the tank above ground
in the same manner as the tank.**

**B. Piping: AWWA C 600, Sections 1 and 3 and Section 02514 - Site Water
Distribution.**

**3.3 FIELD QUALITY CONTROL**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**DETERMINE WHETHER THE GOVERNMENT OR THE CONTRACTOR IS GOING TO PERFORM
THE REQUIRED TESTING AND EDIT ACCORDINGLY.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**A. Testing: \[The Government will perform to required testing,
recording, and distributing of the results.\] \[The Government will make
arrangements for a certified independent testing laboratory to perform
the required testing, recording, and distributing of the results.\]
\[Conduct the performance and acceptance tests of the
\[\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\]. Furnish necessary
equipment, labor, and materials to conduct the testing. Testing shall be
conducted in the presence of the Contracting Officer.\] \[Arrange for a
certified independent testing laboratory, according to the requirements
of Section 01458 - Testing Laboratory Services, to perform the required
testing, recording, and distributing of the results.**

**B. Radiographic Inspection: Radiographically inspect weld joints on
field fabricated steel storage tanks. Perform the inspection according
to the requirements of AWWA D 100, section 11, Inspection and Testing.**

**1. Personnel performing radiographic inspection shall be qualified
according to ASNT-TC1A. Only individuals qualified NDT Level II, or NDT
Level I working under an NDT Level II shall perform testing.**

**2. Repaired unacceptable welds according to the AWS D 1.1 at no
additional cost to the Government.**

**3. Furnish radiographic test reports and film to the Contracting
Officer. Repair welds determined to be unacceptable on the basis of the
test results.**

**4. When a weld is unacceptable on the basis of a visual inspection,
additional radiographs shall be made of that weld. When the weld is
unacceptable, the Contractor shall pay the cost of the additional
radiograph and repair.**

**5. After acceptance of the structure, the radiographs and written
reports shall become the property of the Government.**

**C. Air Test: Before placing tank in the excavation, provide an above
ground air test according to the manufacturers instructions or the
following: Introduce air into the tank to create an internal pressure of
3 to 5 psig while a soap solution is applied to weld seams. No evidence
of air leakage shall be observable at weld seams, and no pressure loss
of 1.0 psi or more shall occur during and 8-hour test period, without
introduction of additional air.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**NORMALLY, CATHODIC PROTECTION SHOULD BE ADDRESSED AS A DESIGN SPECIFIC
TO THE TANK, THE CHEMISTRY OF WATER IT WILL STORE, AND THE ENVIRONMENT
TO WHICH IT WILL BE SUBJECTED.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**3.4 CATHODIC PROTECTION**

**A. Requirements: Provide(s) evenly spaced, \[12\] pound magnesium
anode, suspended from the top of the tank at a distance of one-third the
tank radius from the sides, extending below the water surface,
electrically bonded to the tank.**

**3.5 CLEANING**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**CHOOSE ONE OF THE FOLLOWING OPTIONS:**

**AWWA C 652 COVERS THREE METHODS FOR DISINFECTION. TYPICALLY, ONLY ONE
METHOD WILL BE USED FOR A GIVEN STORAGE FACILITY DISINFECTION, BUT
COMBINATIONS OF**

**THE METHODS MAY BE USED. THE THREE METHODS ARE:**

**1. CHLORINATION OF THE FULL STORAGE FACILITY SUCH THAT THE END OF THE
APPROPRIATE RETENTION PERIOD THE WATER WILL HAVE A FREE CHLORINE
RESIDUAL OF NOT LESS THAN 10 MG/L.**

**2. SPRAYING OR PAINTING OF ALL STORAGE FACILITY WATER CONTACT SURFACES
WITH A SOLUTION OF 200 MG/L AVAILABLE CHLORINE.**

**3. CHLORINATION OF FULL STORAGE FACILITY WITH WATER HAVING A FREE
CHLORINE RESIDUAL OF 2 MG/L AFTER 24 HR.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**A. Disinfection: \[Disinfect tank and connecting lines according to
AWWA C 652, \[Method 1\] \[Method 2\] \[or\] \[Method 3\]. After
disinfection, flush tank and connecting lines and dispose of chlorinated
water in accordance with AWWA C 651 \[and according to Section 02512 -
Disinfection of Water Distribution\].**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**OBSTRUCTION LIGHTING MAY BE REQUIRED ON ELEVATED TANKS. THE FOLLOWING
PARAGRAPH CAN BE DELETED FOR OTHER TYPES.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**3.6 OBSTRUCTION LIGHTING**

**A. Requirements: Provide obstruction lighting as indicated. Place
wiring in rigid conduit and threaded conduit fittings. Control
obstruction lighting by a \[time switch\] \[photo-electric control\]
enclosed in a cast metal weatherproof housing located approximately
6-feet (1.8 m) above the ground on \[standpipe\] \[one of the tower
legs\]. Perform electrical work in accordance with NFPA 70.**

**[PART 4: MEASUREMENT AND PAYMENT]{.underline}**

**4.1 METHOD OF MEASUREMENT**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**WHEN A \"LUMP SUM\" CONTRACT IS USED, DELETE THE TITLE PART 4:
MEASUREMENT AND PAYMENT, AND BOTH ARTICLES FROM THIS SECTION.
MEASUREMENT AND PAYMENT WILL BE ADDRESSED IN PART 4 OF SECTION 01009 OR
SECTION 01010.**

**WHEN NOT A \"LUMP SUM\" CONTRACT, SELECT APPLICABLE PHRASES; USE THE
\"NO MEASUREMENT\" PHRASE WHEN NONE OF THE PAY ITEMS IN THIS SECTION ARE
INCLUDED IN THE BID SCHEDULE.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**A. Units: The work described in this section will \[not be measured
for payment.\] \[be measured and paid for\] \[on a lump sum basis.\]
\[per each tank.\]**

**4.2 BASIS OF PAYMENT**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**WHEN NOT A \"LUMP SUM\" CONTRACT, SELECT APPLICABLE PHRASES; USE THE
\"NO DIRECT PAYMENT\" PHRASE WHEN NONE OF THE PAY ITEMS IN THIS SECTION
ARE INCLUDED IN THE BID SCHEDULE.**

**WHEN NOT A \"LUMP SUM\" CONTRACT AND PAYMENT IS TO BE MADE UNDER THIS
SECTION, SELECT APPLICABLE PAY ITEMS. DO NOT CHANGE PAY ITEM NUMBER.
WHEN GOVERNMENT‑FURNISHED PROPERTY IS SPECIFIED FOR PAY ITEMS, THE
LETTER SUFFIX GF WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM
NUMBER.**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**A. Payment: \[No direct payment for the work described under this
section will be made. Consideration for this item shall be included in
the bid price for other items of the Contract.\] \[Prices and payment
will be full compensation for the work described in this section.
Payment will be made under:\]**

**[Pay Item]{.underline} [Pay Unit]{.underline}**

**13209(01) Elevated Steel Water Storage Tank. . . . . . . . . Lump
Sum**

** 13209(02) Elevated Steel Water Storage Tank. . . . . . . . . Each**

** 13209(10) Steel Standpipe. . . . . . . . . . . . . . . . . . Lump
Sum**

** 13209(11) Steel Standpipe. . . . . . . . . . . . . . . . . . Each**

** 13209(20) Steel Ground Water Storage Tank . . . . . . . . . Lump
Sum**

** 13209(21) Steel Ground Water Storage Tank . . . . . . . . . Each**

**END OF SECTION**

**WORK DATA SHEET**

**for**

**SECTION 13209 ‑ WATER STORAGE TANKS**

**Number of tanks required:**

**Drawings: This Work Data Sheet shall be used in conjunction with
Drawing**

**No. [ ]{.underline}.**

**Length of tank:**

** [ ]{.underline} ft [ ]{.underline} inches (L: [ ]{.underline}m) **

**Inside Diameter D~1~[ ]{.underline} ft [ ]{.underline} inches: ([
]{.underline}mm)**

**Outside Diameter D~2~: [ ]{.underline} ft [ ]{.underline} inches ([
]{.underline}mm)**

**Capacity of tank: [ ]{.underline} gallons ([ ]{.underline} liters )**

**Tank Openings: (Drawing No. 13205‑l)**

**1. Opening A 5. Opening E**

** Opening size: Opening size:**

**[ ]{.underline} inches ([ ]{.underline}mm) [ ]{.underline} inches ([
]{.underline}mm)**

** Detail: Detail:**

** Distance \'D\': Distance 'D':**

** Remarks: Remarks:**

**2. Opening B 6. Opening F**

** Opening size: Opening size:**

**[ ]{.underline} inches ([ ]{.underline}mm) [ ]{.underline} inches ([
]{.underline}mm)**

** Detail: Detail:**

** Distance \'D\': Distance 'D':**

** Remarks: Remarks:**

**3. Opening C 7. Opening G**

** Opening size: Opening size:**

**[ ]{.underline} inches ([ ]{.underline}mm) [ ]{.underline} inches ([
]{.underline}mm)**

** Detail: Detail:**

** Distance \'D\': Distance 'D':**

** Remarks: Remarks:**

**4. Opening D**

** Opening size:**

**[ ]{.underline} inches ([ ]{.underline}mm)**

** Detail:**

** Distance \'D\':**

** Remarks:**

**Note: When openings are not required, list opening and use phrase
\"Not Required.\" When several tank projects are included, the tabular
format may be more appropriate. (01/28/97)**