READ AND **REMOVE THIS PAGE** BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

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

[DIVISION 2: SITEWORK]{.underline}

SECTION 02525 ‑ WATER SUPPLY WELLS

USE: Requirements for constructing water wells, including record
keeping, construction of the well platform, disinfection of well, and
water quality testing, and capping or completion with a pump, drop pipe,
and pitless adapter.

**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:

Water well design requires many decisions, which must be based on
available information about desired yield and subsurface conditions. In
many cases, adequate information for some of these decisions is lacking
at the outset of construction, so provisions for gaining needed data are
included in the specification. Likewise, there are provisions included
for procedures to follow in the event that unanticipated conditions or
data are encountered.

This guide specification should be intensively edited for use to
accommodate the specific requirements of state regulations and the level
of available information. Although it attempts to provide for the most
common situations in which it will be used, it is likely that additional
provisions will be needed for each project.

1\. **DRAWING DATA REQUIRED:**

Site plan showing locations, and alignment of connected water piping and
power line, well cross section with anticipated depths of casing(s)
screen(s), filter pack(s) and sanitary seal, and diameters of components
as appropriate. See standard drawings numbered 02525-n.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes 7/01

Metric: Not Applicable

Technical Update: 7/00

SECTION 02525

WATER SUPPLY WELLS

[PART 1: GENERAL]{.underline}

1.1 SUMMARY

A. Section Includes: Requirements for construction of water wells
(consolidated or unconsolidated) using conventional \[fluid rotary
drilling\] \[or\] \[reverse circulation drilling,\] \[or\] \[cable
tool\] methods\], including record keeping, construction of the well
platform, \[installing casing,\] \[well screen,\] \[gravel pack\],
\[capping of well,\] \[disinfection of well,\] \[water quality testing\]
\[and\] \[installation of submersible well pumps,\] \[riser pipes,\]
\[pitless units,\] \[and\] \[associated\] \[plumbing,\] \[controls\]
\[and\] \[accessories\].

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.

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

General Information and Requirements Section 01009

Summary of Work Section 01010

Government‑Furnished Property Section 01019

Submittal Procedures Section 01330

Certificates Section 01331

Testing Laboratory Services Section 01458

Trenching Section 02321

Site Water Distribution Section 02514

Minor Concrete Section 03306

Water Well Pumps Section 11216

Windmills Section 13701

Well Maintenance Section 17320

1.2 DEFINITIONS

A. Listed and Labeled: The terms \"listed\" and \"labeled\" as defined
in the National Electrical Code, Article 100.

1.3 SUBMITTALS

A. General: Submittals shall be according to \[Section 01009 - General
Information and Requirements.\] \[Section 01330 - Submittal
Procedures.\] \[and\] \[Section 01331 - Certificates.\]

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

EDIT SUBMITTAL REQUIREMENTS BASED ON THE TYPE OF WELL (CONSOLIDATED OR
UNCONSOLIDATED). DESIRED CONSTRUCTION TECHNIQUES (TYPE OF RIG,
DEVELOPMENT, TESTING\...) AND THE DEGREE OF COMPLETION (PUMPS WITH
CONTROLS OR SEAL AND CAP.) FOR EXAMPLE, IF THE SPECIFICATION IS WRITTEN
FOR A CONSOLIDATED WELL, DELETE THE WELL COMPONENTS WHICH ARE NOT
NORMALLY REQUIRED IN CONSOLIDATED FORMATIONS, SUCH AS INNER CASING, WELL
SCREEN, AND GRAVEL PACK.

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B. Drilling Program: Within 10 calendar days after the date of receipt
of notice to proceed, submit a complete and practicable drilling
program. The program shall provide for orderly performance of the work
and be in such form and detail as to show the following:

1\. Sequence of drilling operations.

2\. Drilling method, including make and model of drill rig, and number
and type of rigs to be operated simultaneously.

3\. The days of the week and month that work is to be performed.

4\. The number and length of each shift per day. The length of a shift
may be extended in the field as required to avoid interrupting a
drilling and testing operation.

5\. Plan for mud pits and disposal of waste.

6\. Development method to be used, including the size and/or rating of
the proposed equipment.

7\. Test pumping and monitoring equipment proposed.

C. Certificates of Conformance: Submit three copies of written
certification from the supplier of the Contractor-furnished equipment
listed below to be used on this project that it conforms to the
requirements of this specification section:

1\. Casings

2\. Cement

3\. Air line

4\. Air gage

5\. Drilling mud

6\. Water meter

7\. Screens

8\. Gravel

9\. Pumps

10\. Pitless adaptors

11\. Controls

D. Drawings: Submit three copies of drawings or catalog cuts showing
water well components. Detail drawings or catalog cuts shall include a
cross section showing the relative size, location, and spacing of the
well components such as the hole size, outer casing, \[inner casing\],
\[well screen\], \[gravel filter\], air line and gage, grout, \[pump\],
\[pump intake level\], \[drop pipe\], \[check valves\], \[pitless
adaptor\].

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A TEST HOLE AND CAPACITY TEST SHOULD BE SPECIFIED IF THERE IS A
POSSIBILITY THAT THE WELL MAY NOT PRODUCE THE REQUIRED YIELD AT THE
DESIGN DEPTH. IF THE REQUIRED YIELD IS NOT OBTAINED, THE TEST HOLE MAY
BE DRILLED DEEPER OR THE LOCATION CHANGED BEFORE THE PERMANENT WELL IS
CONSTRUCTED. TEST WELL PROVISIONS MAY BE DELETED FROM THIS SECTION IF
THE WELL IS TO BE CONSTRUCTED IN AN AREA WHERE OTHER WELLS OF SIMILAR
DEPTH AND DESIGN ARE PERFORMING ADEQUATELY. A DRILL LOG AND CAPACITY
TEST CONFORMING TO STATE REQUIREMENTS SHOULD BE PROVIDED FOR ALL WELLS.
ALSO, EDIT OR DELETE REQUIREMENTS FOR CONTRACTOR TO PROVIDE
RECOMMENDATIONS AND PERMANENT WELL AS DESIRED.

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

E. Test Well Reports: During the drilling of the test well, maintain an
accurate bore log. As a minimum, the log shall include depths,
elevations, and descriptions of all formation encountered;
identification of each stratum according to the Unified Soil
Classification System or standard rock nomenclature, as necessary; and
depths at which groundwater is encountered \[and provide recommendations
for permanent wells. Include with the recommendations the appropriate
depth, details of construction, length and location of screens, screen
openings, gravel size, grout, and an estimation of the quantity of water
that can be obtained from each water‑bearing stratum and from each
completed well\].

1\. Soil and Rock Samples: Take and preserve soil samples each 10 feet
(3 m) with a split-spoon sampler. Take and preserve rock samples each 10
feet (3 m) using standard core drilling methods. Prepare a graphic
boring log to scale showing the required details.

2\. Submit three copies of electric log, a drillers log drawn to scale
with coarseness and fineness modulus of each strata, time penetration
log (time to drill through each formation), \[caliper log\]
\[natural‑gamma log\], and sieve analysis \[to substantiate
recommendations\].

F. Daily Record: A copy of the daily record , as specified under
"Quality Assurance", below, shall be submitted to the Contracting
Officer upon completion of work each day. The form of the daily report
shall be approved by the Contracting Officer prior to the start of work.
Information recorded by the daily report shall include, but is not
limited to:

1\. Time of start up and shut down.

2\. Time of any standby periods with explanation of reasons therefore.

3\. Type of work (drilling, development, test pumping, standby, etc.).

4\. Number of personnel and equipment on job.

5\. Depths - referenced from "drilling datum" of:

a\. Top and bottom of each stratum penetrated.

b\. Depths from which samples are taken.

c\. Static water level - measured beginning of each shift and at
observed changes in water level.

d\. \[Well screens and accessories installed in the well.\]

e\. \[Perforations of well casing.\]

6\. Type of material encountered.

7\. Well casing - Length, size and grade of each piece assembled and
cumulative total length of casing assembly.

8\. Any drilling difficulties, and adjustments or corrections to the
work.

9\. Weather conditions.

10\. Amount of water disposed of on site and any difficulties related to
disposal.

11\. Any problems that might result in a change of conditions or
contract negotiations.

G. Driller's Logs: At the completion of the work, the Contractor shall
submit driller's log for each hole drilled. The log shall summarize the
following information:

1\. Size of drill hole and method of drilling.

2\. Depths: referenced from "drilling datum" of:

a\. Top and bottom of each strata formation encountered.

b\. Water bearing formations.

c\. Static water level - measured beginning of each shift and at
observed changes in water level.

d\. Finished well.

e\. Well screens and accessories installed in the well.

3\. Identify the material in each stratum. Use the USGS Classification.

4\. Well casing - material, length, diameter, thickness, weight per foot
of length and grade of each piece assembled and cumulative total length
of casing assembly. Include the depth below grade that casing was
installed and any changes in size of casing.

5\. Screen: Material, construction, length, diameter, and opening size.

6\. Well completion date.

7\. Upon completion of the well, the log shall be prepared and signed by
the Contractor, and submitted to the Contracting Officer for approval.

H. Samples: Take samples, approximately 16 ounces, of substrata
formation at 5-foot intervals and at all pronounced changes in formation
throughout entire depth of each well. Carefully preserve samples on-site
in suitable containers properly labeled for identification (plainly
marked to show the well description and the depth below the ground
surface at which the sample was taken).

I. Permanent Well Field Test Reports: Submit the test reports required
for test well, and also submit three field test reports for the
following:

1\. Pump test.

2\. Water quality analysis.

3\. Plumbness and alignment test.

1.4 QUALITY ASSURANCE

A. Regulatory Requirements: Each system, including equipment, materials,
installation, and workmanship shall be in accordance with the standards
and regulations of the state of \[[ ]{.underline}\].

B. Reference Standard: Well construction shall comply with all
applicable provisions of AWWA A100.

C. Records and Logs: The Contractor shall keep an accurate daily record
of all work. Daily records shall be kept current during the progress of
the days work in a neat and legible report form. They shall be available
for examination by the Contracting Officer at all times during the work.

D. Well Driller Qualifications:

1\. The well driller shall be licensed as required by the State of \[[
]{.underline}\] and shall comply with all the laws of the State
pertaining to water well drilling.

2\. The Contractor is responsible for submitting all well construction
records required by the State, with a copy to the Contracting Officer.

3\. Final well construction information shall be recorded on forms
furnished by the State.

E. \[Casing Labeling Requirements: Polyvinyl Chloride (PVC) plastic
casing shall carry the National Sanitation Foundation (NSF) seal of
approval for well casing (NSF-WC)\].

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THE PROVISION FOR STANDBY TIME CAN BE DELETED IF ALL TESTING, DEVELOPING
AND FINISHING WORK IS THE RESPONSIBILITY OF THE CONTRACTOR.

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

F. \[Standby Time: The Government may elect to perform tests in the
wells or perform other work not covered in this specification section.
If the tests or other work require the use of the drill rig, including a
minimum two‑man crew, rig time will be paid. When the Contractor is
required to stand idle and unable to perform work on the well, standby
time will be paid.\]

G. Pump Listing and Labeling: Provide pumps and components specified in
this Section that are listed and labeled.

1\. Listing and Labeling Agency Qualifications: A "Nationally Recognized
Testing Laboratory" (NRTL) as defined in OSHA Regulation 1910.7.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Delivery: Deliver materials in an undamaged condition.

B. Storage: Store materials off the ground to provide protection against
oxidation caused by ground contact. Replace defective or damaged
materials with new materials at the Contractor\'s expense.

C. Moving Equipment Between Wells: Moving equipment between wells
includes work of moving equipment, materials, and tools, and setting up
at each well site; removing equipment, tools, and materials; and moving
them to the next well site.

1.6 SEQUENCING AND SCHEDULING

A. Drilling Program: Follow the approved drilling program.

[PART 2: PRODUCTS]{.underline}

2.1 MATERIALS

A. Casing: Materials specified shall be new and free from defects. No
used or old material will be accepted. However, when necessary or
desirable to use temporary casing, the temporary casing may be used
casing, subject to the approval of the Contracting Officer. Also see
Section 01019 ‑ Government‑Furnished Property.

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

SPECIFY METAL CASINGS WHEN MORE STRENGTH IS REQUIRED THAN PLASTIC CAN
PROVIDE, OR WHEN MAXIMUM OPEN AREA FOR SCREEN DIAMETER IS REQUIRED.
SPECIFY PLASTIC WHEN WATER IS CORROSIVE OR ECONOMY IS OF PRIME
IMPORTANCE.

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

B. Steel Casing: Steel casing shall be either seamless or
electric‑welded black steel pipe, with either welded or threaded and
coupled joints conforming to ASTM A 53 Grade B, or line pipe conforming
to API 5L, either Grade A or B. Each section of steel casing shall be
marked to show the diameter, standard number, weight, wall thickness;
and United States manufacturer. Physical dimensions shall be as follows:

STEEL WATER WELL CASING

Minimum

Nominal External Minimum Weight per

Size Diameter Wall Thickness Foot

[ (inches) (inches) (inches) (lb) ]{.underline}

3 3.500 0.216 7.58

4 4.500 0.237 10.79

5 5.563 0.258 14.62

6 6.625 0.280 18.97

8 8.625 0.277 24.70

10 10.750 0.307 34.24

12 12.750 0.330 43.77

14 14.000 0.375 54.57

16 16.000 0.375 62.58

18 18.000 0.375 70.59

20 20.000 0.375 78.60

24 24.000 0.375 94.62

C. PVC Plastic Casing: Polyvinyl Chloride (PVC) plastic casing and
couplings shall be PVC 1120 pipe conforming to ASTM F 480, with joints
using solvent according to ASTM D 2564, and primer according to ASTM
F 656. Each section of PVC plastic casing shall include NSF listing
marks to show, at a minimum, the diameter, type of material, standard
number, SDR number, and United States manufacturer. Physical dimensions
shall be as follows:

PVC WATER WELL CASING/LINER

(200 psi)

SDR 21

Minimum

Nominal External Minimum Weight per

Size Diameter Wall Thickness Foot

[ (inches) (inches) (inches) (lb) ]{.underline}

4 4.500 0.214 1.875

5 5.563 0.265 2.870

6 6.625 0.316 4.074

8 8.625 0.410 6.884

10 10.750 0.511 10.693

12 12.750 0.606 15.042

16 16.000 0.762 23.748

D. PVC Casing Joints: May either be solvent‑weld type, using a locking
coupling, or flush‑type threaded or threaded and coupled. Casing joints
shall be joined watertight according to the manufacturer\'s
recommendations. Reinforce each joint of solvent‑welded pipe with a
minimum of three metal screws; these screws will not protrude from the
inside wall of pipe.

E. Disinfectant: Granular calcium hypochlorite compound with 65 percent
available chlorine HTH or approved equal. Compound shall be NSF approved
for use with potable water.

F. Sample Bags: \[Furnished by the Government.\] \[Durable,
\[waterproof,\] sealable containers, suitable for 6-ounce samples, with
means for clearly labeling the contents as specified.\]

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IF THERE IS NO REASON FOR RESTRICTING THE TYPE OF DRILLING FLUID USED,
DELETE THE PARAGRAPH(S) IN WHICH THEY ARE SPECIFIED.

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

G. Bio-Degradable Drilling Fluid: A guar-based, organic polymer drilling
fluid shall be used in water bearing zones. The material shall be
certified by the manufacturer to dissolve and breakdown when dosed with
chlorine.

H. Drilling Foam: Certified by the manufacturer for use with approved
type of drilling rigs.

I. Stainless Steel Well Screen: Screen fabricated of ASTM A666, Type 304
stainless steel by welding, with continuous slot, V-shaped openings that
widen inwardly. Screen slot openings shall be completely clean and free
of burrs, frayed edges and cuttings. \[Screen shall have a K-packer for
insertion into the casing.\] \[Recommend the size of screen to be
approved by the Contracting Officer.\]

J. Polyvinyl Chloride (PVC) Well Screen: The well screens shall be of
the size shown on the Work Data Sheet. The screens shall be of the
continuous slot, wire‑wound, PVC material. At least 95% of the screen
slot openings shall be completely clean and free of burrs, frayed edges
and cuttings. \[Screen shall have a fastening ring for attachment to PVC
casing.\] \[Screen shall have a K-packer for insertion into the
casing.\]

K. Formation Packers: \[Backfill material containing gravel no larger
than 3/4-inch\] \[gravel passing a 3/8-inch sieve and containing no more
than 10% fines passing a No. 200 sieve\] shall be used for formation
packers. \[Material shall be washed and disinfected with a 0.1% chlorine
solution before being placed in the well.\]

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

DELETE GRAVEL IF A CONSOLIDATED WELL IS SPECIFIED AND GRAVEL IS NOT
REQUIRED.

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

L. Gravel Packing: \[After reaching the water-bearing zone and test
pumping indicates that gravel packing will be required, obtain samples
of the sand formation and recommend the size and quantity of gravel
packing required to the Contracting Officer for approval. Submit
material samples and analyses along with the recommendation.\] \[Gravel
packing shall be Government-furnished.\]

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

THE PUMP AND MOTOR DIAMETER SHOULD BE AT LEAST 25 MM (1 INCH) SMALLER
THAN THE INSIDE DIAMETER OF THE WELL SCREEN OR CASING, WHICHEVER IS
SMALLER, IN ORDER TO ALLOW IT TO BE REMOVED FOR SERVICING.

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

M. Permanent Well Pump: Shall be an approved \[submersible\]\[, jet\]
\[or \[\_\_\_\_\_\]\] type with a capacity sufficient to deliver
\[\_\_\_\_\_\] liters per min (\[\_\_\_\_\_\] psi)(\[\_\_\_\_\_\] gpm)
at \[\_\_\_\_\_\] kPa. The bearings shall be oil lubricated and the
shaft shall be stainless steel. The pump shall operate on \[120\]
\[208\] \[24\] volts, 60 Hz, \[3\] \[single\] phase power. The motor
shall be of sufficient size to operate the pump under the maximum
operating conditions without exceeding it rating. Pump shall operate
automatically. Pump diameter shall not exceed \[\_\_\_\_\_\] inches
(\[\_\_\_\_\_\] mm) in diameter.

1\. The well pump shall be of a quality as specified herein and as
manufactured by the following companies.

a\. American Turbine

b\. Covert Manufacturing, Inc. Covert Pump Division

c\. Deming Pumps

d\. Goulds Pumps, Inc. Turbine Division

e\. Grundfos Pumps Corp. Clovis CA (209) 292-8000

f\. Johnston Pump Co.

g\. Layne & Bowler, Inc.

h\. Myers: F.E. Myers

i\. Peerless Pump

j\. Reda.

k\. STA-RITE, Water Systems Group

l\. Trupar, Inc.; Rth Berry Division

m\. Weir Floway, Inc.

2\. Impellar: \[Stainless steel\] \[or\] \[bronze.\]
\[Corrosion-resistant, molded plastic.\]

3\. The following pump end components shall be constructed of stainless
steel: \[impellers,\] \[diffusers,\] \[priming inducer,\] \[shaft,\]
\[intake/adapter bracket,\] \[intake screen,\] \[discharge head,\]
\[vanes,\] \[cable guard,\] \[coupling,\] \[nuts\] \[and\] washers.\]

4\. The pump bearings and check valve seat shall be NBR (natural buna
rubber).

5\. All data plates shall be attached to the pump and contain the
manufacturer's name, pump size and type, serial number, speed, impeller
diameter, capacity and head rating, and other pertinent data. An extra
data plate shall be attached at the well head.

6\. The motor shall be manufactured by Franklin Electric or approved
equal. Size shall be approved by the Contracting Officer after the pump
test but shall not exceed \[[ ]{.underline}\] hp. Available electrical
service is \[[ ]{.underline}\] volts, \[[ ]{.underline}\]phase ac, 60
Hz.

7\. The motor shall be of the potted winding/water lubricated type, with
NEMA standard mounting face and shall have a minimum service factor of
1.15. The motor shall be fitted with a Kingsbury style thrust bearing
capable of operating to a maximum of \[[ ]{.underline}\] pounds and
shall also be equipped with a bearing to handle momentary upthrusts.

8\. The motor shall be fitted with a lead assembly which shall have the
leads potted in epoxy. The lead plug assembly shall be keyed where it
enters the motor to prevent cross connections. The motor leads shall be
color coordinated for specific winding connections and shall be of
sufficient length to extend past the end of the pump end.

N. Power Cable: Three \# \[[ ]{.underline}\] stranded conductors,
insulation type RUW or TW, approved for submersible pump applications.
The conductors shall be enclosed in an outer synthetic jacket which is
impervious to oil. No splices will be allowed other than the connection
to motor leads. Connect cable to motor leads with a heat shrink splice
kit.

O. Auxiliary Piping: Provide discharge piping to dispose of pumped water
during developing and testing of well. Locate the discharge flow at a
sufficient distance from each well to prevent flooding, erosion, and
flow back into well.

P. Riser (Drop) Pipe: \[[ ]{.underline}\]-inch, Schedule 40, threaded,
galvanized steel pipe.

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

USE A WELL CAP RATHER THAN A PITLESS ADAPTOR IF THE WELLHEAD WILL BE
LOCATED INSIDE A WELLHOUSE OR OTHER BUILDING.

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

Q. Well Cap: Manufactured well seal providing a compression seal with
penetration for piping and cables, which fits into the top of the casing
and is removable, waterproof and vermin-proof.

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

IF WELLHEAD WILL BE EXPOSED TO THE OUTDOORS, CHOOSE ONE OF THE PITLESS
ADAPTOR OPTIONS BELOW, OR SELECT A MANUFACTURED PITLESS UNIT.

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

R. Pitless Unit: \[[ ]{.underline}\]-inch nominal size, Baker/Monitor
Model \[[ ]{.underline}\], manufactured by Baker, Monitor Division, 133
Enterprise St., Evansville, WI 53536, (608) 882-5100, or approved equal.

S. Pitless Adapter: Model \[[ ]{.underline}\] weld-on pitless adapter as
manufactured by Maass, Muskego, WI, (415) 679-3922, or approved equal.
\[[ ]{.underline}\]-inch connections.

T. Pitless Adapter: NSF No. 56 fitting, of shape required to fit onto
casing. Include waterproof seals and threaded pipe connections.

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

SOME MEANS FOR DETECTION OF THE DEPTH OF THE WATER SURFACE SHOULD BE
PROVIDED IN ALL WELLS. ELECTRONIC SENSOR AND PNEUMATIC METHODS ARE THE
MOST COMMON METHODS. SELECT DESIRED COMPONENTS FROM THE FOLLOWING, OR
INDICATE THAT THE CONTRACTOR HAS THE OPTION TO SELECT COMPONENTS
APPROPRIATE FOR EITHER METHOD.

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

U. Electronic Sensor Tube: 3/4-inch PVC pipe.

V. Depth Test Apparatus: Provide a depth test apparatus consisting of a
pressure gauge, air pump connection, and drawdown tubing.

W. Pressure Gauge: Water level gauge, Model \# \[[ ]{.underline}\] as
manufactured by Ametek Inc., US Gauge Division, Sellersville, PA (215)
257-6531, or approved equal. Steel case, 4-1/2 inch diameter, \[[
]{.underline}\]% accuracy, 0 to \[[ ]{.underline}\]-foot range,
adjustable dial to permit reading water level in feet below the ground
surface.

X. Air Valve: Schrader type, 1/4-inch MPT standard, Type I.

Y. Draw Down Tubing: Tubing shall be 1/4-inch polyethylene.

Z. Banding Material: Nylon strap bands or waterproof tape.

2.2 MIXES

A. Grout: Shall be Type \[II\] \[V\] portland cement, water, \[and\]
sand \[and a maximum of 2 percent calcium chloride\]. Portland cement
shall meet the requirements of ASTM C 150 \[and the calcium chloride
shall meet the requirements of ASTM D 98\]. Mixed grout shall be 1 part
portland cement and 3 parts sand mixed with no more than 6 gallons of
water per 94 pound sack of cement to form a workable mix. Water shall be
potable.

[PART 3: EXECUTION]{.underline}

3.1 PREPARATION

A. Clearing: Limit worksite clearing to a maximum 50 ft by 100 ft (15 m
by 30 m) area or as designated by the Contracting Officer.

B. Site Preparation: Minimize surface disturbance at sites. Level
construction sites only as necessary for drilling operations. Cut or
fill slopes shall not be steeper than 4:1, unless approved otherwise.

3.2 WELL LOGS AND SAMPLES

A. Well Log: \[The Contracting Officer will furnish the Contractor with
a Form 7230‑2 (Well Log) and a Form 7230-2a (Well Log Continuation
Sheet) for recording information on the well.\] Keep a complete well log
as required by State law, and check formations and enter the results in
the log for intervals not to exceed 10 ft (3 m). The log of the well
shall show material penetrated and full descriptive notes made of each
stratum found by the drill and difficulties or unusual conditions met in
drilling. Water‑bearing strata shall be described in detail as to loose
or compact material, color, and if gravel, whether it is water‑worn or
angular. The presence of clay shall be noted. The log must be kept
up‑to‑date with the progress of the well drilling, and shall be
available for inspection by the Contracting Officer during the drilling
operations. \[Furnish one copy of the complete log to the Contracting
Officer after completion of drilling.\]

B. Samples: For cable‑tool drilling operations, take a sample at the end
of each drilling run. For other types of operations, take a cuttings
sample at each apparent change in the materials penetrated, or every 10
ft, whichever is lesser. If drilling is proceeding beyond the estimated
depth for the well, take samples at 5-ft intervals. \[The sample shall
be placed in a cloth sample bag supplied by the Government. Label
samples in pencil or insoluble ink with the name of the well, sample
number, depth below ground surface, thickness of the stratum from which
the samples were obtained, and sampling date. The samples shall be
furnished to the Contracting Officer with the completed well log.\]

C. Additional Requirements: The Contracting Officer will furnish the
Contractor a Form 7230‑1 (Water Well Drilling Record) for recording
information that is not included in the well log. Complete the form and
return it to the Contracting Officer.

D. Information for State Filing: Furnish the Contracting Officer with
drilling information required by State law for filing on water wells,
and prepare and submit reports required of the driller by State law.

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ELECTRIC, GAMMA RAY, PHOTOGRAPHIC AND OTHER TYPES OF LOGS ARE OFTEN
DESIRED FOR GAINING INFORMATION ABOUT AQUIFIERS AND OTHER SUBSURFACE
CONDITIONS AND MAY IMPROVE WELL DESIGN, BUT MAY NOT BE NECESSARY FOR
CONSTRUCTION OF WELLS IN LOCATIONS WHERE SUCH INFORMATION IS ALREADY
AVAILABLE.

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E. Electric Log: \[Furnish a complete electric log indicating
\[resistivity\] \[and\] \[self‑potential\] \[of formations and water
bearing strata\]. \[The logging shall be recorded on American Petroleum
Institute (API) grid, 5 inches per 100 ft.\] \[The United States
Geological Survey (USGS) will be at the well site immediately after
drilling has been completed by the Contractor, to do electronic
geophysical testing within the open hole. The time needed to do the
geophysical testing is minimal (approximately 24 hr.) Should USGS not
arrive at the site within 2 hr following acceptance of Contractor\'s
yield determination or final drilling, and if no yield test is required,
the Contractor may begin plugging operation.\]

F. \[Gamma Ray Log: Furnish a complete gamma ray log of formations and
water‑bearing strata\].

G. \[Photographic Log: Furnish a complete photographic log on videotape
of formations and water‑bearing strata\].

3.3 TEST WELL

A. Requirements: Drill a test hole at the well site before construction
of the permanent well is started. The location, size of well, and method
of drilling must be approved before work is started. Test hole shall be
not less than 6 inches (150 mm) in diameter and not less than
\[\_\_\_\_\_\] feet(\[\_\_\_\_\_\] mm) deep. Keep accurate logs and
records required.

B. Casing: A temporary casing shall be used.

C. Test Well Data: Do not construct the permanent well until data
submitted for test hole has been analyzed and approved by the
Contracting Officer.

1\. Should the data obtained from test hole indicate unfavorable
conditions, the test well shall be filled and sealed according to
Article 56 of EPA 570/9‑75‑001 and as approved by the Contracting
Officer. Exploration shall be continued at other locations approved by
the Contracting Officer until a suitable well site is located. In the
event additional test holes are required and approved, the contract
price and time for completion will be adjusted in accordance with the
contract. A test hole may be incorporated into the finished construction
provided it meets the requirements for a finished well.

3.4 PERMANENT WELL CONSTRUCTION

A. Drilling: \[Enlarge satisfactory test well to\] \[Drill the hole\]
\[\_\_\_\] inches (\[\_\_\_\] mm) in diameter to a minimum depth \[of
\[\_\_\_\] inches (\[\_\_\_\] mm )\] \[required to produce the specified
flow capacity\]. Methods of construction shall be as approved by the
Contracting Officer \[and include drilling mud for conventional fluid
rotary drilling or reverse circulation drilling\]. Drill straight,
plumb, and circular from top to bottom, from the ground surface to the
\[uppermost level of the water-bearing strata\] \[top of rock\] and the
bottom of the outer casing set at this elevation. The hole below the
outer casing shall fully penetrate the water-bearing stratum a
sufficient depth to produce the required amount of water without causing
excessive velocities through the aquifer.

B. Outer Casing: Install the outer casing concentrically in the drilled
hole and extend the casing down to a minimum depth of \[\_\_\_\] feet
(\[\_\_\_\] m ). \[Provide welded joints in accordance with AWWA C206.\]
\[Provide threaded joints in accordance with ANSI/ASME B1.20.1.\] \[Fill
the void between the outer casing and the drilling hole with cement
grout according to AWWA A 100. Provide a grout retainer at the bottom
and ensure that grout does not leak into the well. Grouting shall be
done continuously and to ensure that the void is filled in one
operation.

C. Inner Casing: \[Install the inner casing and well screens
concentrically in the outer casing and drill hole. Fill the void between
the outer casing and the inner casing with neat cement grout to seal the
inside wall of the outer casing to the outside wall of the inner
casing.\] Provide centralizers at the bottom of the casing and at other
critical grouting points such as zones of unsuitable water quality.
Provide a suitable grout retainer at the bottom of the inner casing so
that grout does not leak into the bottom of the well.

D. Grout: Grout casing from the bottom upward to effectively seal the
annular void. Inject grout using a tremie pipe sealed to the well casing
at the surface.

E. Screens: Provide sufficient screens at the water bearing layer to be
developed to secure available flow. Seal the bottom of the deepest
screen with a threaded or welded plug, consisting of the same material
and thickness as the screen body, or a welded plate, consisting of the
same material and thickness as the screen body or casing.

F. Well Development: Set the casing\[s\] and allow the neat cement grout
to harden a minimum of 72 hours prior to well development. Provide well
development in accordance with Article 52 of EPA 570/9‑75‑001, except
explosives will not be permitted. Furnish pumps, compressors, plungers,
bailers, and other equipment required to fully develop the well for the
maximum yield of water per foot (meter) of drawdown and to limit sand
intrusion during the life of the well. Underream the sand strata to a
diameter 16 inches (400 mm) greater than the outside diameter of the
casing attached to the well screens. Extend the underream continuously
through the entire depth of the water bearing strata. Developing
equipment shall be of an approved type and of sufficient capacity to
remove all cutting fluids, sand, rock cuttings, and any other foreign
material. Pump the well free of sand, mud, drillings, and other foreign
matter. Maximum sand concentration at the completion of well development
shall be 2.0 ppm. The turbidity shall be less than 5 on the Jackson
Turbidity Scale specified in AWWA‑01. The well shall be thoroughly
cleaned from top to bottom before beginning the well tests.

G. Gravel Envelope: Fill the entire void between the screen and the
outside wall of the underreamed hole with gravel. The gravel envelope
shall extend from a point equal in distance to 2.5 times the largest
diameter of the underreamed hole below the lowest screen and the same
distance above the highest screen. Disinfect and place the gravel with a
tremie pipe in accordance with Articles 54 and 50 of EPA 570/9‑75‑001.
Control speed of gravel placement to prevent bridging and to allow for
settlement of the gravel. Gravel placement equipment and gravel
placement methods shall be approved by the Contracting Officer prior to
commencement of work.

3.5 FIELD QUALITY CONTROL

A. Water Quality Determination: During drilling, collect, and have
analyzed by a Government‑approved testing laboratory, representative
water samples from water‑bearing strata to accurately show the quality
of water from each stratum. Perform water sampling in accordance with
Article 45 of the EPA 570/9‑75‑001. Include bacteriological and
physical‑chemical analysis. In addition, analyze the water for any
additional suspected minerals or contaminants which would make it unfit
for human consumption, such as nitrate, fluoride, mercury, or any other
contaminants.

1\. After the well has been disinfected, and the 24 hour pump test run,
water quality samples shall be collected from the in‑place water and
submitted to an approved testing laboratory for complete chemical and
bacteriological analysis. Furnish additional samples as required by
Contracting Officer.

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

C. Water Exceeds Microbiological Standards: When the laboratory analyses
show that the bacteriological quality of the water does not meet State,
local, or EPA standards, take check samples. When the check sample and
analysis indicates bacteriological contamination, repeat the
disinfection process and resample the water after disinfection (a
maximum of two times).

D. Water Exceeds Maximum Contaminant Levels (MCL\'s): When the
laboratory analyses show that the water exceeds MCL\'s established by
EPA, State, or local regulations, take another set of samples and have
the laboratory analyze the samples for those substances. When the second
set of water samples also exceeds the MCL\'s, the Contracting Officer
will consult with the appropriate authorities to determine if the
problem can be overcome and the water utilized as drinking water.

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THE TEMPORARY PUMP CAPACITY SHALL BE A MINIMUM OF 160 PERCENT OF THE
GUARANTEED CAPACITY RATE.

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B. Pump Test: Upon completion of the permanent well, provide a temporary
pump, meter, air gage, and air line in the well for measuring the flow
and drawdown. The temporary pump shall have a capacity of not less than
\[\_\_\_\] gallons per minute (\[\_\_\_\] cubic meter per second). After
determining the static water level in the well, begin pumping at a rate
equal to 60 percent of the guaranteed capacity rate and check the
drawdown at 15 minute intervals until drawdown stabilizes. Measure
drawdown using the air line method. Continue pumping at that rate for 2
hours and check the water level at 30 minute intervals. Increase pumping
rate in uniform increments of 20 percent of the guaranteed capacity rate
and repeat described procedure at each increment of increased rate until
the capacity of the well is determined or the 160 percent increment of
the guaranteed capacity rate is reached. The capacity of the well shall
be the flow obtained at a drawdown level 10 feet (3 m ) above the top of
the uppermost screen.

1\. After determining the safe maximum yield of the well, conduct a
continuous 24‑hour pump test at that rate and check the drawdown at
hourly intervals. Provide pipe and ditches to drain the water from the
well site. Submit water disposal methods to the Contracting Officer for
approval. Furnish a complete written log of the pump test, showing
static water level, pumping rate, and drawdown at the specified
intervals. Remove air line at completion of pump test.

C. Well Plumbness and Alignment Test: Upon completion of the permanent
well, provide a well plumbness and alignment test using a plummet in
accordance with Article 51 of the EPA 570/9‑75‑001. Perform the test on
the entire depth of the well. The plumb or dummy shall move freely
through the entire depth of the well. The well shall not vary from the
vertical in excess of two‑thirds of the smallest inside diameter of that
part of the well being tested per 100 feet (30 m ) of depth. Correct
defects in plumbness and alignment, and repeat test until the work is in
compliance with contract requirements.

3.6 DRILLING WASTE

A. Waste Disposal: Drilling waste such as drilling fluid and drill
cuttings shall be removed so that wastes will not interfere with
installation of the well platform and pumping equipment and will not
pollute surface waters or cause contamination of the well. \[Dispose of
drilling waste offsite, unless otherwise authorized in writing by the
Contracting Officer.\] \[Deposit drilling waste at a location authorized
in writing by the Contracting Officer near the well site. Drilling waste
shall be deposited in a pit, covered, and seeded with
\[[               ]{.underline}\].\] \[Drilling waste shall be caught in
a pit. Location and size of this pit will be approved by the Contracting
Officer. When the drilling is completed, the original excavated material
from the pit shall be mixed with the drilling waste material and machine
compacted to existing natural density and approved by the Contracting
Officer.\]

3.7 DISINFECTION

A. General: After the well has been completed, including developing and
testing, installation of permanent pump, or at time of tests for yield
and drawdown test, whichever is later, clean and disinfect well,
equipment, and material in accordance with Article 54 of EPA
570/9-75-001 and as specified in this section.

B. Interim Disinfection: When a delay of 3 or more days will occur
between the completion of the well and the regularly scheduled well
disinfection, provide an interim disinfection. Apply 10% of the amount
of an approved disinfectant in liquid form that would be required for
final disinfection to the well. Use a hose or tremie pipe of sufficient
length to extend to the bottom of the well, and raise and lower the pipe
during application to assure uniform distribution of the disinfectant
solution throughout the well.

C. Disinfection of Water Table Wells:

1\. Dry Chlorine Compounds: Use dry chlorine compounds to disinfect
water table wells. Move a doubly capped, perforated, pipe container
filled with granular chlorine compound up and down the entire well bore
until the material has dissolved. Add a stock solution producing a
minimum of 100 ppm of available chlorine in the well at intervals from
top to bottom, and agitate it to distribute the solution evenly
throughout the well.

2\. Stock Solution: The chlorine solution used for disinfecting the well
shall be of such volume and strength and applied so a concentration of
at least 100 ppm of chlorine is obtained throughout the well.

D. Disinfection of Flowing Artesian Wells: Use dry chlorine compounds to
disinfect flowing artesian wells. Place a double-capped, perforated pipe
container filled with a granular chlorine compound at a point on or
below the top of the producing aquifer. Repeat as necessary until a
minimum concentration of 100 ppm available chlorine is maintained for at
least 1 hr.

3.8 ABANDONMENT OF THE WELL

A. Abandoning Existing Wells: Abandon and seal existing wells in
accordance with Article 56 of EPA 570/9‑75‑001 and as specified herein.
Sealing shall consist of a permanent bridge neat cement seal directly
above the lowest aquifer, intermediate neat cement seals between water
bearing formations, and uppermost aquifer neat cement seal placed above
the uppermost aquifer and the top of the well. Provide disinfected
aquifer fill materials consisting of \[sand and gravel between sealed
layers\] \[as indicated\].

B. Abandonment Due to the Contractor\'s Actions: When the drilled well
must be abandoned because of lost tools, damaged well, misalignment, or
other causes attributed to carelessness or poor workmanship, pull casing
(if installed) that can be removed. Fill the hole with grout, puddled
clay or other impervious earth material according to State regulations
and requirements. The Contractor shall then drill a new well within 10
ft of the original well.

C. Abandonment Due to Other Causes: When the well must be abandoned
because of inadequate quantity or quality of the water, or for another
reason not the fault of the Contractor, pull the casing (if installed)
that can be removed. Fill the hole with grout, puddled clay or other
impervious earth material according to State regulations and
requirements. The order to abandon the well must be in writing from the
Contracting Officer.

D. Casing: Casing that can be removed shall be removed. The Government
will retain ownership of the casing. If the casing cannot be removed, it
shall be closed with a steel cap tack welded to the casing. The name of
the well, total depth drilled, static water level, if any, and the date
shall be plainly and permanently marked by welding beads on the
protruding part of the casing. The annulus around the casing shall be
filled with grout, puddled clay or other impervious material according
to State regulations and requirements.

3.9 SANITARY PROTECTION OF WELL

A. General: Protect the well during the construction period to prevent
tampering or seepage of contaminated water, petroleum products, or other
contaminants into the well from the ground surface.

B. Seal: When the well is completed, install a cap compression seal
designed to prevent pollutants from entering the well. The watertight
casing or pitless wellhead shall extend above the \[well platform\]
\[final ground level\] as shown on the drawings. Seal or screen
equipment that permits direct access to the well to prevent entrance of
foreign matter or contaminants.

C. Pitless Adapters and Pitless Units: The specified installation shall
be complete including fittings and 6 ft of discharge line. Excavate
around the existing casing as specified. Connect the drop pipe and
horizontal discharge line to the adapter or unit according to the
manufacturers\' instructions. Connections shall be watertight. The
horizontal discharge line shall be below the frost line.

1\. Pitless Adapters: The outside section of the adapter shall connect
onto the well casing below the frost line. The adapter shall be
connected to the casing by clamp‑and‑gasket or by welding. The casing
shall extend above natural ground a minimum of 18 inches. Cut a hole in
the casing specified for the horizontal discharge line or adapter.

2\. Pitless Unit: Cut off or remove the upper part of the casing and
connect the outside of the unit directly to the casing
\[\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\].

D. Grading: Slope the ground immediately surrounding the top of the well
casing or pitless wellheads away from the well in all directions, as
shown on the drawings.

E. Correcting Contamination: If the well becomes contaminated, or water
with undesirable physical or chemical characteristics enters the well
due to the neglect of the Contractor, corrective work including the
supplying of casing, seals, sterilizing agents, or other materials
necessary to prevent contamination of the aquifers shall be performed at
the Contractor\'s expense.

3.10 WELL PLATFORM

A. General: Construct a \[concrete\] \[earth\] platform around the well
as shown on the drawings. \[Concrete shall be according to Section 03306
‑ Minor Concrete.\] \[Finish concrete with a smooth \"wood float\" or
\"broomed\" finish.\] The casing shall extend above the platform as
shown on the drawings. Pumphouse and slab shall be constructed as
indicated so as to prohibit the infiltration of surface water or
precipitation into the well. The slab shall be at 4 feet (1.2 m) square
by 6 inches (150 mm ) thick and constructed of reinforced concrete. The
top of the outer casing shall extend 12 inches (300 mm ) above the top
of the slab. The top of the slab shall be at elevation \[\_\_\_\_\_\] or
higher. The pumphouse shall be constructed on the slab and thermally
insulated.

3.11 CLEANUP

A. Requirements: Upon completion of the well construction and other
incidentals, remove the debris and surplus materials resulting from the
work from the jobsite.

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

4.1 METHOD OF MEASUREMENT

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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.

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A. Units: \[The work described in this section will not be measured for
payment.\] \[Well platforms\] \[pitless adapter\] \[pitless unit\]
\[will be measured and paid for\] \[on a lump sum basis.\] \[per each.\]
No payment will be made for drilling, installing casing, removing
casing, or the plugging of a well abandoned due to the Contractor\'s
actions. Payment will be made for furnishing and installing casing for
the quantity abandoned due to other causes. Payment for pulling casing
and filling the hole when the well is abandoned due to other causes will
be negotiated and the Contract will be modified in writing.

4.2 BASIS OF PAYMENT

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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 MORE THAN ONE DIAMETER OR GAUGE IS SPECIFIED FOR ANY PAY ITEM,
LETTER SUFFIXES WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER.
WHEN GOVERNMENT-FURNISHED PROPERTY IS SPECIFIED FOR PAY ITEMS, THE
LETTER SUFFIX GS WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER.

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

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

02525(01) Disinfection of Well Lump Sum

02525(10) Water Quality Testing Lump Sum

02525(20) Concrete Well Platform Lump Sum

02525(21) Concrete Well Platform Each

02525(30) Earth Well Platform Lump Sum

02525(31) Earth Well Platform Each

02525(40) Pitless Adapter Lump Sum

02525(41) Pitless Adapter Each

02525(50) Pitless Unit Lump Sum

02525(51) Pitless Unit Each

END OF SECTION

WORK DATA SHEET

for

SECTION 02525 ‑ WATER SUPPLY WELLS

1\. Estimated drilling depth: [ ]{.underline} ft

2\. \*Hole size: [ ]{.underline} inches

3\. Drilling method to be used: \[Cable Tool Method\] \[Conventional
Fluid

Rotary Method\] \[Reverse Circulation Drilling Method\] \[Air Rotary

Drilling Method\]

4\. \*Furnish: [ ]{.underline} ft of [ ]{.underline} -inch \[Sch
\_\_\_\_\] \[PVC\] \[steel\] casing

5\. \*Install: [ ]{.underline} ft of [ ]{.underline} -inch \[Sch
\_\_\_\_\] \[PVC\] \[steel\] casing

6\. \*Testing: [ ]{.underline} hr

7\. \*Developing: [ ]{.underline} hr

8\. \*Gravel packing depth: [ ]{.underline} ft

9\. Desired minimum yield: [ ]{.underline} gpm

10\. Well screens:

Material: \[PVC\] \[Stainless Steel\]

Type: \[Telescope\] \[Pipe Size\]

Diameter: [ ]{.underline} inches

Length: [ ]{.underline} ft

Slot Size: [ ]{.underline}

11\. Frost line depth: [ ]{.underline} ft below natural ground surface

12\. Flowing artesian well is \[not\] anticipated

\*Use only when more than one well included in Contract.

Note: When several well projects are included, the tabular format may be
more appropriate. (06/11/90)