ML20004E170

Draft Tech Specs Re Area Dewatering Sys

ML20004E170
Person / Time
Site:	Midland
Issue date:	06/08/1981
From:	BECHTEL GROUP, INC.
To:
Shared Package
ML20004E169	List: ML20004E168 ML20004E170
References
C-88-Q, NUDOCS 8106110295
Download: ML20004E170 (28)

Text

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TZCHNICAL SPECIFICATION

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Specification 7220-C-88(Q), Rev 9 TECHNICAL SPECIFICATION FOR SUBCONTRACT FOR AREA DEWATERING SYSTEM i

4 CONTENTS 1.

SCOPE 1

2.

QUALITY STANDARDS 2

3.

SUBMITTALS 2

4.

SERVICE REQUIREMENTS 3

S.

FIELD OPERATIONS 4

6.

INSPECTION 7

7.

CLEANING AND RESTORATION 9

8.

QUALITY ASSURANCE REQUIREMENTS 9

9.

MEASUREMENT FOR PAYMENT 9

10.

GRAVEL PACKED WELL 10 tii

Specification 7220-C-88(Q), Rev 9

10. GRAVEL-PACKED WELLS A.

GENERAL This section describes the material and construction methods required for the installation of the gravel-packed well for the drawdown / recharge test.

This series of wells will be a separate system and is subject to all soil particle monitoring procedures required under this specification.

B.

ABBREVIATIONS APRA - American Public Health Association ASTM - American Society for Testing and Materials AWWA - American Water Works Association WPCF - Water Pollution Control Federation C.

REFERENCED CCDES AND STANDAPDS Sponsor Number Subject ASTM D 422-63 Standard Method for Particle Size Analysis of Soil ASTM F 480-80 Standard Specification for Thermo-plastic Water Well Casing Pipe and Couplings Made in Standard Dimension Ratios AWWA A100-66 Standard for Deep Wells State of Act 218 P.A.

Groundwater Quality -

Michigan Dewatering Well Records State of Act 294-1965 Groundwater Quality Michigan Control Act State of Act 315-1969 Mineral Well Act Michigan APHA, AWWA, 13th Edition Standard Methods for the Examination WPCF 1971 of Water and Wastewater, Section 224C, Total Suspended Matter (non-filterable residue) (Note:

The determination of volatile matter is not required.)

D.

DEWATERING WELLS 1)

Materials and Eqripment Subcontractor shall furnish all material specified in Section 10, Paragraph E including, but not limited to, 10

Specification 7220-C-88(Q), Rev 9 blank casing, centralizers, screens, gravel pack, piezometer tips and tubing, and miscellaneous fittings necessary to dri:1 and install a series of gravel-packed dewatering wells.

2)

Documentation a)

During drilling operations, Contractor's geologist /hydrogeologist shall keep a log J the top and bottom, a description of each stratum penetrated, and the depth of the water table during the drilling of each hole.

Soil descriptions are to be provided by contractor's geologist /hydrogeologist at the time of the drilling operation.

b)

Contractor's geolejist/hydrogeologist shall make reproducible copies of as-built drawings of each well installation, including well number, location, diameter of hole, total length, and description of each type of casing; a log of subsurface materials encountered; and a complete compilation of all field data obtained during drilling, installing, and developing all wells.

c)

Completion of a dewatering record, prepared by Subcontractor, for wells is required by Act 218, P.A.

1972, which is an amendment of the Dewatering Well Act 294, P.A.

1965, the Ground Water Quality Control Act i

The dewatering well record form shall be completed for every well or a composite record may be made for several wells where the subsurface conditions are similar, the surface relief is relatively level, and the static water level is at a constant depth.

Depending on variations in subsurface conditions, 4

one or several composites of well records may be necessary.

Copies of Subcontractor's records are required to be submitted to Contractor within 15 days after completion of the well system.

3)

Inspection Contractor shall inspect drilling, installing, developing, and testing.

This program is Q-listed, and shall be in accordance with 10 CFR 50, Appendix B.

4)

Testing a)

The gravel pack shall be accepted by Contractor based on the actual gradation of the gravel pack material at each delivery date.

The gravel pack shall meet the requirements given in Section 10.S, based on ASTM D 422, Standard Test Method for Particle Size Analysis of Soil.

11

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d, ification 7220-C-88(Q), Rev 9 b)

The dewatering system shall be accepted by Contractor based on the quantity of soil particles measured in the discharge water correlated with the quantity of groundwater being discharged.

For initial well acceptance, soil particles are defined as inorganic, nonmetallic materials coarser than 0.05 millimiter.

During system operation, soil particles are defined as inorganic, nonmetallic materials coarser than 0.005 millimeter.

l (1)

During initial well development (not to exceed j

8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />), a sample of water shall be taken from the well and tested by Contractor.

The sa' ple shall be filtered through a 0.05 millimeter filter media, in accordance with Standard Methods for the Examination of Water and Wastewater, 13th Edition, 1971, APEA, AWWA, i

WPCF, Section 224C, Total Suspended Matter (non-filterable residue).

(The determination of volatile matter is not required.)

If the 3

quantity of soil particles is 10 ppm or less, the well shall be accepted.

If the quantity of soil particles is greater than 10 ppm, then

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Subcontractor shall be directed to continue developing the well for an additional 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> i

(maximum) and another test taken.

If the second test exceeds 10 ppm, Subcontractor shall be l

directed to develop the well for an additional l

8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period (maximum) and a third test taken.

If the well does not meet the acceptance I

l criteria for soil particles after three tests, then the well shall be rejected and abandoned.

(2)

After the well has met the initial acceptance criteria given in Item b(1), the well shall be connected to a separate dewatering system.

This system shall be operated by Subcontractor.

The quantity of water discharged through the system l

overflow line shall be determined by timing the i

diversion of the entire flow into a container of known volume or by a water meter calibrated in gallons.

During system operation the cumulative quantity of soil particles measured at the system i

l overflow shall not exceed 10 ppm.

The cumulative quantity of soil particles shall be i

determined by testing a sample of water from the overflow every Monday and Thursday that the system is in operation.

If Monday or Thursday is a holiday, the testing shall be scheduled l

1 day before or 1 day after the holiday.

For l

these tests, the filter media shall not be coarser than 0.005 millimeter, and the tests shall be conducted in accordance with Standard Methods for Examination of Water and Wastewater, 12

b Specification 7220-C-88(Q), Rev 9 13th Edition, 1971, api!A, AWWA, WPCF, Section 224C, Total Suspended Matter (non-filterable residue).

Determination of volatile matter is not required.

If a Monday or Thursday test indicatcc the quantity of soil particles exceeds 10 ppm, there shall be a retest.

If the retest confirms that the quantity of soil particles exceeds 10 ppm, each individual well shall be systematically tested.

Any well found to produce greater than 10 ppm soil particles after one retest shall be removed from the system within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of notification and be repaired.

c)

During system operation, each well'shall be tested monthly to determine the soil particle content in the water.

Soil particle concentration exceeding 10 ppm there shall be a retest.

Any well found to produce greater than 10 ppm soil particles after one retest shall be removed from the system within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of notification and be repaired.

The test shall be in accordance with Standard Methods for Examination of Water and Wastewater, 13th Edition, 1971, APHA, AWWA, WPCF, Section 224C, Total Suspended Matter (non-filterable residue), using a filter medi*a no coarser than 0.005 millimeter.

(Determination of volatile matter is not required.)

d)

Subcontractor shall notify Contractor whenever it intends to purge any collected soil particles from the eductor tank.

Subcontractor shall estimate the quantity of water purged, and Contractor shall collect all material from Subcontractor's eductor tank.

The discharged bottom material shall be sieved through a Number 325 U.S. standard screen.

The collected material shall be retained and stored for inspection by Contractor's geologist /

hydrogeologist.

e)

Records shall be maintained for each well and for the entire system, including the quantity of soil particles (in ppm) each time readings are taken.

5)

Quality Assurance Requirements a)

The inspection and documentation of the drilling, installing, developing, and testing are Q-listed and shall be in accordance with Contractor's quality assurance program.

b)

Contractor has the autnority to stop or regulate any part of the dewatering operation to prevent damage to any part of Contractor's work.

6)

Sampling The following sampling is taken for information only.

In coa unction with the documentation required by 13

Specification 7220-C-88(Q), Rev 9 Section 10 Paragraph L.2, Subcontractor shall make available to Contractor samples taken from the cuttings from each 5-foot interval of drilling and at every formation change.

Subcontractor shall place the samples in 16-ounce vapor-seal glass jarr..

These sample jars shall be clearly identified using a waterproof marking, showing job name, well number, sample number, and top and bottom depth at which the sample was taken.

These samples shall be available to Contractor and shall become property of owner at the completion of the subcontract.

E.

MATERIALS l'

General Each well shall be constructed as a gravel-pack well comprising the following principal items supp? lad by Subcontractor.

(If soil borings taken prior to the start of construction disclose conditions which may influence a change in sell design, then Contractor will issue specification revisions for the gravel pack and screen design.)

a)

Well casings, temporary caps, and screens shall be 6-inch nominal diameter polyvinyl chloride (PVC).

All well casings and screens shall be new material, minimum Schedule 80.

b)

Well screens shall be No. 18 (0.018 inch) slotted, plastic wire wrapped.

A minimum 5-foot length of blank 6-inch PVC well casing shall be fitted to the bottom of the well screen where shown on the drawings.

The blank section or well screen shall be sealed at the bottom with a cap.

c)

Piezometer tips shall be the Casagrande type, 1-1/2" od x 1" id x l'-0" long, Norton porous stone, such as Model 51451 manufactured by Slope Indicator Company.

d)

The gravel pack shall be composed of 100% processed silica, washed and bagged, and shall be free from l

clay, organic matter, calcareous particles, and l

other deleterious materials.

The gravel pack shall I

meet the following requirements:

Sieve size l

Designation Acceptable Range (No.)

of % Retained l

4 0 to 10 l

6 0 to 14 8

6 to 22 12 14 to 31 16 24 to 40 20 35 to 51 30 51 to 67

(

40 90 to 100 l

14

Specification 7220-C-88(Q), Rev 9 Particle size analysis shall be made onsite for the initial lot of material to be used and when material for 10 wells has been placed.

e)

Grout mix shall be as shown on drawings.

2)

Certificates of Compliance Subcontractor shall submit to Contractor a Certificate of Compliance with ASTM F 480 for the well casing, certify that screens comply with Item E.1.b, and certify that the gravel pack material complies with Item E.1.d prior to use of these items.

F.

CONSTRUCTION OF PERMNENT DEWATERING WELLS 1)

Drilling a)

The bored hole for each dewatering well shall be drilled in accordance with the cable-tool method.

Care shall be taken in drilling the first 15 feet due to the presence of underground ducts, pipes, and conduit as shown in the design drawings.

b)

The dewatering wells shall be drilled without any obstructions to permit free and easy installation of the well casing and gravel pack as well as installation and operation of submersible pumps and level switches to be installed by others, as applicable.

Subcontractor shall be directed by Contractor's geologist /hydrogeologist to maintain the casing full of water when drilling below the water table.

c)

A surface or temporary casing of sufficient size and weight shall be placed in the hole to prevent the hole from caving in during drilling.

Such casing must be removed by Subcontractor before completion of the well.

Drilling mud shall not be used to stabilize the hole.

d)

Each hole shall be a minimum of 14 inches in diameter (16 inches maximum) to the depth indicated in the design draw.ngs.

The actual total depth of each well mcy vary %pending on actual subsurface conditions and as directed by project engineering.

e)

Subcontractor shall net continue well installation procedures, following the drilling of well holes, without Contractor authorization.

2)

Installation a)

Jointing methods for well casings and screens shall be in accordance with ASTM F 480.

b)

Centering devices shall be installed as required on the casing to locate and hold the casing and screen sections in proper position.

c)

The piezometer tips shall be at'. ached to a 1/2-inch Class 160 thermoplastic riser pipe.

The tip shall 15

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Specification 7220-C-88(Q), Rev 0 be placed at the bottom of each dewatering and observation well within the gravel pack between the well casing and the hole wall.

The riser pipe and piezometer tip shall be secured to the well casing.

A temporary 1/2-inch PVC cap shall be placed on the piezometer riser pipe.

d)

The gravel pack shall be placed by using two tremie pipes placed 180* apart in the hole.

The inside diameter at the tremie pipes shall be at least 2.5 inches.

At all times during the gravel packing operation, Subcontractor shall not permit free fall of gravel pack material to exceed 5 feet from the end of the tremie pipe.

Subcontractor shall-wash the gravel pack material through the tremie pipes by directing a constant flow of water into each tremie pipe with the gravel.

e)

To avoid particle segregation, sufficient material shall be stockpiled to ensure that the gravel pack is installed within 1 day.

f)

After the gravel pack is in place, circulation shall continue until the gravel pack is consolidated and cleaned.

As the gravel pack settles, more material shall be added.

g)

After placement of the gravel pack, an 18-foot minimum thickness of grout shall be placed at the top of the gravel pack between the 6-inch casing and the drilled hole.

G.

DEVELOPMENT AND DRAWDOWN TEST 1)

Development Subcontractor shall furnish all necessary pumps or other equipment and shall develop the dewatering wells using the methods necessary to give the maximum yield of water per foot of drawdown from the water-bearing material and i

l minimize the quantity of soil partic es.

Ite development process shall include backwashi'.g using intermittent pumping and/or jetting.

Development shall begin as soon as practical following the placement of the gravel pack and grout seal.

I 2)

Drawdown Test i

a)

After the wells are develcped and qualified for soil particle content, eductors shall be installed in them.

These eductors shall be capable of lowering and maintaining the groundwater table at el 585' in the pumped wells.

The wells shall be pumped until otherwise directed by Contractor's geologist /hydrogeologist.

b)

Upon completion of the drawdown test and removal of the pumping equipment, a 6-inch diameter PVC cap shall be installed on the 6-inch well casing for protection of the well.

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no GENEllAL INSTituCTIONS Purpo:.e The purpose of this PQCl is to provide sufficient inspection activities to assure that the rettuired 41uality for safety related activities for l

the installation and testing of the gravel-packed wells for the drawdown / recharge test.

Scope An inspection record for this PQCl shall be scoped for each gravel-packed well installed. After installation of the gravel-pat.ked wells, one inspection record will be initialed during system testing and one inspection record will be initiated for monthly testing of individual well points.

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,o Special Instructions 1.

When preparing Block 7. " Reference Criteria," on the IR, the CQCE Note: Reference cr teria for shell enter the documents necessary to perform the designated in-active PQC s/lRs shall be spections. These documents shall include:

(1) the primary specift-reviewed daily and changes cation (s), revision number (s) with all specification change notices in revision recorde l on the (SCNs), and applicable field chasige request (FCRs); (2) project IR.

An aci ive IR is one engineering approved drawings with all drawing change notices (DCNs) which the LQCE is liiplementing.

'i and applicable FCRs.

The primary specificatf orts are those identified In Block 6 of this PQCl cover sheet.

3 ij 2.

All documents used as inspectiori criteria for quality verification shall be " controlled" documents.

4 3.

Where project engineering approved documents exist within the scope l

of work to be performed, the project engineering approved document shall be used.

4.

If, during the review of the reference criteria documents or at any time later during the performance of these inspections, the CQCE determines the reference criteria documents are not adequate to per-form the required inspections (i.e., incomplete or omitted details, lack of cross-referencing between drawings, documents requiring j

clarification, etc.), the lead discipline CQCE shall be notified.

The lead discipline CQCL'shall discuss the problem with the project field quality control engineer (Pf4CE) who will take tha necessary action for resolution. The CQCE shall complete the inspection in 1

compliance with the resolution.

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The inspection activity codes in Column 6 of the PQCl for in-process and final inspection activities are supplemented by one of three different synibols to further define the type of inspection required:

A.

Visual Inspection (V) - to inspect by visual exainination.

B.

Measuremesits (M) - to inspect by physical measurement of dimensions or count of required quantity.

C.

Visual Inspection and Measurement (V&M) - to visually examine to detect the apparent worst condition, take a measuremerit to verify acceptance, and visually compare the other items based on this measurement.

j 6

Incon.plete items and nonconforming items noted during these inspec-i tion activities shall be controlled in accordance with AAPD/ PSP G-3.2 to prevent their inadvertent use or installation. The type of documentation generated shall depend on the nature of the item as descrl'oed in AAPD/ PSP G-3.2.

Incomplete items which require documen-tation shall be recorded on Form QC DR-1.

All discrepancies re-corded on form QC DR-l must be closed out prior to final sigri-off I

of the relevant activities under Activity Number 3.0, final in-spectiori activities of the IR.

7.

lhe total number of pages to the discrepancy repart shall be progressively recorded on the IR as each new page is added to the report.

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7220 JOB NO.

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^C' i40N SUPPL EMk NI AH Y AcilVITY oEsCHIPTioN afgP 1,NSF Special Instructions (continued) 8.

The responsible Construction Quality Control Engineer shall be present during the installation of gravel-packed wells; during all field satiipling of soll particles; and assure date, tiene, sample identification, etc. are in accordance with U.S. Testing coinpany approved procedures and pro. ject specifications.

9.

Actual detennination of the fines content by U.S. Testing personnel

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shall be monitored in the laboratory by the CQCE utilizing PQCl i

No. SC-1.05, for dewatering effluent fines testing.

10.

The responsible CQCE shall, upon notification of falling test results, notify liechtel geologist /hydrogeologist for resolution.

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i sunt uenianv Acnvisy ocscuwuou n co u 1.0 PREREQUISITES The following activities shall be accomplished after the IR is scoped for a given work operation, but prior to the performance of any in-process inspectiori activities.

l.1 Review the " Reference Criteria" to assure that all recluired criteria is None R

listed, with the current applicable revision duid vert fy that the

" Reference Criterld" is understood.

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I IN-PROCESS INSPECTION ACTIVITIES 2.0 The following inspection activities, shall be performed to verify that thein-processworkisinaccordancewi(htheapplicable"Heference Criteria" shown on the IR.

2.1 Location _

None f(V)(M)

Assure gravel-packed wells are located and identified as per drawing.

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2.2 Drilling C-88 10.F.1.a 1(V)

Assure drilling is performed by the cable-tool methad.

A.

10.F.1.c I(V)

Assure temporary casing is installed during drilling operation,

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B.

10.F.1.d I(M)

'l Assure hole diameter is 14 inches minimium, 16 inches maximum.

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10.F.1.d I(M)

Assure actual total depth of hole is per design drawings or as 1

D.

directed by Project Engineering.

10.F.1.c f(V)

Assure drilling mud is not used to stablize hole.

E.

10.F.1.b I(V) 4 Assure casing is full of water when drilling below the water table F.

if directed by the geologist or hydrogeologist.

10.D.2.a R

Well log a Review well log and as-built drawing for soll description of each 10.D.2.b As-Built Dwg.

1 stratum encountered as provided by the geologist or hydrogeologist.

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A 7220/C_2.01_ _ _ _ _ _ _ _ _ _

of FL UN ON EUPr &

NIAHV ACilVaTY DtScHsPiloN

. No.

j 2.3 Installation of Gravel-Packed Well Components and piezometers A.

Assure.lointing methods for well casings and screens are in C-88 10.F.2.4 1(V) acccrdance'wf th ASTM F-480.

11. Assure well casings and screens are properly identified. Attach 10.E. 2 f(V)R Certificates Certificates of Compliance submitted by the Subcontractor to the IR.

of Coenpliance y.

C.

Assure a ininimuni a-foot length of blank 6-inch PVC well casing is 10.E.1.b 1(V)(M) fitted to the bottoin of the well screen Wien shown on the drawing.

Assure blank 6-inch PVC well casing or well screen is capped at the bottom.

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D.

As sure piezometer tip and riser pipe are secured to the well casing.

10.F.2.c f(V)

Assure riser pipe is capped after installation.

E.

Assure centering devices are installed to locate and hold casings and 10.F.2.b

!(V) 4 screen sections in proper position.

ll ll F.

Assure configuration is per design drawings.

None 1(V) i; j9 2.4 Placement of Gravel-Pack and Grout i

)l A.

Assure gravel-pack material is per specification requireinents.

C-88 10.E.1.d R

Test Reports a il Sample' initial lot and Wien inaterial for 10 wells has been completed 10.E.2 Certificates

{I resample gravel-pack material.

of Comptiance B.

Assure gravel-pack material is placed using two tremis pipes placed 10.F.2.c 1(V)(M) 180 apart in the hole. Free fall may not exceed S feet. Gravel-pack 10.F. 2.d shall be consolidated by circulation to proper elevation. Record amount ll of gravel-pack material used.

i 4

C.

Assure asi 18-foot sinisiliiiuni thickness of grout,is placed at the top 10.F. 2.e f(M) of the gravel-pack, i

D.

Assure configuration and grout proportions are per design drawings.

Norte 1(V)

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I M ASIE H OC INS 194LsC1 TON NO Hgv

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QUALITY CONTROL INSTRUCTION 4

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7220 JOB NO-7220/C-2.01 A

^C' 8N

$OM L Mt N M eH Active ry ocscnwrion ig,rg,i';N Ac t c >oL

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i 2.5 Initial Testing of Well Points A.

Witness the sampling of soil particles from each well during well C-88 W

M I 223 l

development. Observe U.S. Testing Company personnel for implemen-10.D.4.h.1 Latiori of their ;pproved procedure. Verify proper sample identifi-cation including well nuuber, date and time of sample. Sampling shall be not later than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> af ter start of pumping. Record sampling infonnation on Sasupling of Individual Well form.

)

B.

If results of initial sampling tests are not within specification 10.0.4.b.1 W

E l 223 limits, developnient may continue for a period not to exceed 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for each retest arkt the well points shall be resampled and retested, or rejected. Resampling shall be witnessed in accordance with

.j' Activity No. 2.SA above.

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2.6 Monthly Testing of Well points A.

Witness the sampling of the soll particles from each well during C-88 10.0.4.c W

El 223 munthly sampling. Observe U.S. Testing Campany personnel for implementation of their approved procedure. Verify proper sample identification including well number, date and tine of sample.

i B.

If retesting is required, witness the resampling in accordance with Activity No. 2.6A.

2.7 Soll Particles

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A.

Observe the field sampling activities to verify that the sampling C-88 W

El 225 frequency and sampling nethods are in accordance with approved 10.D.4.h.2 jj procedures and during the operation of the dewatering system.

Record required sampling infornution on the IR.

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4. M As t k. h uC 4NS1HUCI8DN NO.

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QUALITY CONTROL INSTRUCTION h

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jot! NO.

7220/C-2.01 A

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1.

2. "

'"c*n". i t.u a ac'i cout I"""" "c"o"n"n ^ " #

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3 AClivilY ntsClurisON ni no 2.7 Soll Particles (continued)

B.

If ratesting is ratutred, witness the resampling in accordance C-88 W

MEl 225 wi th Act ivi ty No. 2.7A.

10.8). 4.b. 2 C.

If the retesting still shows excessive soll particles, monitor the

10. D. 4. b. 2 resainplisig of individual wells in accordance with Activity 2.7A of this PQCl.

2.8 Flowneters A.

Ensure that all flowneters are currently calibrated, arid readings C-88 1(V) are praperly taken by U.S. Testing Canpany. Record calibration 10.0.4.b.2

,i infonnation on the IR.

l on B.

Ensure direct flow iiieasurements detennisied by backup method are in 10.D.4.b.2 1(V)

MEl 224 aCCordallCe with approved U.S. Testing procedures.

NOTE: Calibration infonnation is found on U.S. Testing funn MEl-227.

i 8

2.9 Purging 4

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A.

Witness the field sampling of the material frun the eductor tank C-Bil W

when purged.

10.0.4.d i

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3 eAQ511 H OC 4N51HucitON NO.

At V 8

UN QUALITY CONTROL INSTRUCTION

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7220 JOB NO.

7220 A

__._. /C-2.01. _ _. _ -. _ _.. -..

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$UMtiMtNiAHV

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3.0 FINAL INSPECTION ACTIVITIES The following inspection activities shall be perforiiied to assure that the completed work meets the quality requirements. contained in the

" Reference Criteria" shown on the IR.

i 3.1 Test Review A.

Review and sign Lab Test Reports verifying:

None R

1.

Quantitles of soll particles are reported (PPM).

2.

Completeness of forms (all appilcable blanks filled in).

l, 3.

Proper date and location.

B.

Review and sign Lab Test Reports verifying quantitles of soll None R

particles meets specification requirements for:

1.

Individual wells NOTE:

If soll particles exceed the specified tolerances, resample in accordance with specification requirements.

2.

Average quantity of the system i

NOTE:

If the average quantity of the system exceeds those spect-I; fled, the individual wells shall be resampled and tested in accordarice with specification requireiierits.

i 4

3.2 Review all Discreparicy Iteports to assure that tiie required corre+ctions None R

hdV8 been coupieted by rework without violating at.

the original a

design documents in accordance witti AAPD/ PSP G-3.2.

Record the total i

number of Discrepancy Report pages on the IR.

uns e onu issss2 8

'^6E 12 ' 14 * '"

I. M ASit H OC $NS1HUCilON NG HEV Y

()b QUALITY CONTR01. INSTRUCTION 7220 JOB NO.

7220/C-2.01 A

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ActiviTv otscnieTion CT Otas tCOH 4.0 REVIEW 0F SUPPLEMENTARY RECORDS The following supplementary records identified in Column 7 of the PQCl shall be reviewed to verify that the required quality documentation has

l been satisfactorily canpleted and is available for filing with the IR.

4.1 MEl-223 None R

i 4.2 MEl-224 None R

4.3 MEl-225 None R

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4.4 Well Log and As-!!utit Drawing None R

i 4.5 Gravel-Pack Test Reports None R

4.6 Certificate of Canpliance (well casings & screens)

None R

-lI 4.7 Certiticate of Canpliance (gravel-pack)

None R

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1 00S iOHM 105S3 2 18.PAGE IK4'6 S g) H8

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b QUALITY CONTROL INSTRUCT 10N 7220

' '""'""S'""

JOB NO.

7220/C-2.01 A

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Acuvaiy ocscairrion S.0 EXCEPTIONS 5.1 Review the conipleted IR to verify that the applicable inspection None R

activities have been performed Without any exceptions.

If any

'f exceptions exist, complete Activity S.2.

l or S.2 Any inspection activity exceptions noted on the IR are to be iden-None R

j tified and described ori the IR under "Reisiarks" arid processed in i

accordance with PSP G-3.2 I

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1 ous e onu aussa 2 s.enor

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PROJECT 'lNSPECTION PLAN ouiur ?J25?J-i % m

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9M Cam;any A N D

• R 'C $ 0 i-Ian10I_f_.

QA44 1 enoJEcr :::sreenes uc:c so rasJEC I. ssp: no.1 P'A.1 80:

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i C-20A mEv 0

Installation of Gravel-?acked Wells FRoJEC:s PREFAa13 31/0AI,1 AFFROVED 3Y/UAn8 AFFRCVE3 3T/I'A~-":

Midland 1 and 2 i

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,ty, Q.z at exAAAcua:sn: :Escurn:w 1.0 Location of Gravel-Packed Wells l

1.1 Assure gravel-packed wells are located Drawings and identified as per drawing.

C-2016 and 7/A-I?/??-S C-2013 1

2.0 Drilling of Gravel-Packed Wells 2.1 Assure drilling is per:orned by :he C-88 cable-: col nethod.

Sec. 10.F.1.a 7-I?-S 2.2 Assure :e:porary casing is installed dur-

,Sec. 10'.F.1.c ing drilling operation.

7/R-I?-S k

2.'3 Assure hole diame:er is 14' inches :nini=u:n.

Sec. 10.7.1.4 16 inches naxt: sum.

A/R-I?/??-S 2.4 Assure ac: cal cocal depen of hole is per Sec. 10.F.1.d design drawings or as directed by Projee:

t Engineering.

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PROJECT INSPECTION PLAN

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2.5 Assure drilling mud is not used :o Sec. 10.Fil.c stabilize hole.

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2.6 Assure easizig is full of water when Sec. 10.F.1.b drilling below the water table if --

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directed by :he geologis:/ hydrologist.

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2.7 Review well log and as-built drawing for C-88 soil dese:1pt'icn of each sciacum encoun-Sec. 10.D.2.a

- rured as providTd by : lie-'giBIdifi~s: or an'd ~10.D. 2. b '

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hydrogeologist_.

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3.'O Insta11alio[n~Io~E,GEavel-PackedhellCom-oceents and Pie:cmeters I

3.,1

• Assure well casings and screens.are p. rop-Sec. 10.I.2.

erly identified and.cer:ificaces of com-and 10.E.1.a pliance.have been at: ached :o irs.

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t 3.'2 Assure piezomece ti.

Cisag~rande -Ep6, 1 "ps shall be the Sec. 10.I.l.c ed x 1" id x l-0" long,-~ Nor:citr porous s:ene suen as rom ~~~

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51451, nanufactured by, Slope. Indicatoe

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Company.

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-3 : - Assure 'a-five ftet length 5Tbid%~~iiM-'"

Sec'. 10.E.1.b inch PVC.well casing is fi::ed :o :he boccom 'of 7 he-vell-screen shen shown on

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t drawings. Assure blank six-inch PVC

- "well casing" or well screen is cappe_d at__

he bot:om.

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3.4 Assure pie:one:e:.....cip and riser pipe are Sec. 10,F.2.5 secured :o the well casing. Assure riser Drawing C-20li pipe is capped af:er ir.stalla:1on.

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3.5 Assure centering devices are ins alled :o Sec. 10.F.2.5, locace and hold casings and screen sec-10.F.2.a tions in proper posi: ice, Assure jointing methods.f.or well casings and screens shall be in accordance with AS M T-480.

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PRC4tC:s. ENetN E ERINc

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V 3.6 Assure configuration is per design Drawing cf201E drawings.

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..I 4.0 Placement of Gravel-?ack and Grout 4.1 Assur'e' gravel-pack material is per Sec. 10.E.1.d specification requirements. - -------- -

A/R-I?/PP-S 4.2 Assure gravel-pack =aterial is placed Sect 10.F.2.d continuously vi:h continuous, circula:-

and 10.7.2.e ing vare: to prevent segregation. -.- - - -

Gravel-pack shall be consolida:ed by circula:1:n to proper elevattent Free

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fall of--nacerial shall not exceed..five---

l feet.

A/V-I?-S-4.3 Assure a 13 -fooc minimum thickness of Sec. 10.F.2.f 3rouc -is-placed ac the :cp of--:he. gravel-

tawings. _ -

pa k.

A/:(-I?/??-S Asuure minimum 3'-6 additional gravel

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4.4 pacic above. top of screen.

Drawing C-201 5 A/V/R-IP/PP-3

--.t. 5 Assure proper grouc mix.ure.

Crawing C-2016 y p4 l

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PROJEC=i INSPEC*110}:g Pl AhJ ANo con $7 AUCTION *

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m ouaury Assmuci maruist Power c= m AND REPORT rana _ed_

CAI8-1 rnoJrci ::sts=::s u::Rs so:

tso tc; Isstr=::s rtA.y so:

= r.za C-20B Moni:oring of Soils Par:icles for the arve O Gravel-Packed Wells raoJt=:

FarrAars sY/ AT,E s ArrtoVE3 5Y/ ATE:

ArrtoVD SY/: ATE:

Midland I and 2 h

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A;r 1.0 Initial Testing of Well ?oints 1.1 Obse?ie the sampling of e.he soil parti-C-88 cles from each well during well develop-S ec. 10. D. 4. b.1 ment. Obserie US Testing Co personnel for implementation of their approved procedure. - Verify 'froper sample iden:1-fication including well number, date and time of sample. Sampling shall be no later than eight hours after scare of pumping.

7/A/R-I?/PP-S 1.2 If resul:s of initial sampling sses are Sec. 10.D.4.b.1 not w1:hin specificacion limits, develop-menc may continue for a period no: to exceed eight hours for each recast, and the well points shall be resa= pled and recesced or rejec:ed. Resa=pling shall be in accordance with Act No 1.1 above.

No more than-two reces:s are persi::ed.

7/A/R-I?/PP-S 1.3 The well shall be connec*.ed :o a separate S ec. 10.D. 4. b.2 dewatering system after mee:1=g 1.1 or

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,,_o A N D R,tr0R_i ria 2 =, 3 tso:t:: asn=u rw son rna:zr,aat=:s uc:no nos C-203 0

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so caAw;:nsn: :ssenrna mpa. 3f.an 2.0 Mon:hly Tes:ing of Well Poin:s 5

2.1 Obserie :he sa=pling of :he soil par:1-C-88 r

cles f:cm each vell during =enchly sa=-

Sec. 10.D.4.c plin g.

Cbserie US Tes ing persennel for i=plemen a:ica of thet: approved pro-cedure. Verify proper s.a=ple iden:ifica-

icn including well nu=ber, da:e and

ime of sample.

7/A/R-I?/??-S 3.0 Monitoring of Soils Particles 3.1 Observe :he field sa:pling activi:1es :o Sec. 10.D.4.':.2 verify :ha: :he sa:pling frequency and sa=pling me: hods are in accordance vi:h app-oved procedures during :he opera:icn

/

of.the deva:ering sys:em.

7/R-I?/??-S 3.2 I# reces:ing is required, based on :he Sec. 10.D.4.:.2 av,e: age soil particles, con:ent for the cocal quanti:y of ground wa:e: pu= ped, observe the resa=pling in accc: dance with Ac:ivi:y 3.1 above.

7/R-I?/??-S 3.3 If :he reces:ing s:ill shcus excessive Sec. 10.D.4.t.2 soil par:icles, observe :he resa=pling of individual vells per Activi:y 1.1 l

above.

7/R-I?/??-S 4.0 Flov=eters 4.1 Insure that all "Q" flow.e:ars are curren:lj Sec. 10.D.4.L 2 calibra:ed and readings are properly

aken by US Tes:ing Cc=pany.

7/R-I? /??-S 4.2 Insure direct flow neasurenen:s de:er-Sec. 10.3.4.d.2 sised by backup me: hod are in accordance

.T.I 224 vi:h approved US Tes:ing peccedures.

7/A/R- ?/??-S 5.0 i Pure:.nc 5.1 Cbserve One field sacoling of.he nacer:.als C-88

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j frem the aductor tank when purged.

10.3.4.d V:P-S l

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n 6.0 Test Review 6.1 Reviev the Lab Tes: Repor:s verifying:

C-88 Sec. 10.D'.4 1.

Quanti:ies of soil particles is --

[

- - - ~ ~ ~ ~ - - " -

reported (PPM).

t 2.

Completeness of for=s (all appli-cable blanks filled in).

3.

Proper dace and location.

R-IP/?P-S o.2 Reviev the Lab Tes: Reports verffying

~-- -

~ ~ ~~~ ~ - - -~'- ~ ~ ~

quantittaa of soil nr:1cles do not exceed specification require =ents.for:

1.

Individual wells.

C-88 Sec. 10.D.4.c NOTE:

If soil par-1cles exceed the and 10.D.4.e specified tolerances, resa=ple in MII; 223 accordance vi:h specification re-quireme...nts.

2.

Average quan:1:7 of :he sys:es.

C-88 Sec. 10.D.4.b. 2 NOTEi If the average quan:1:7 of the and 10.D 4.e sys:em exceeds those specified, the

.MI 225 individual wells shall be resampled

~

and ~:esced in accor'dafice fli:h speci-fication requirements.

R-IR/??-S 7.0 Review discrepancy repor:s :o assure

?QCI C-2.01 chac the required cofreccions have been upp'/p'Sp complaced by rework et-hou: violating c_3 e j

any of the original design documen s in accordance wi:h AAPD/PS? G-3.2 V-I?/??-S i

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