SOW.pdf

CONTRACT DOCUMENTS AND SPECIFICATIONS

PROJECT CA22-D46/EDO-295-D46

PUBLIC LAW 86-121

SCATTERED SITE WELL DRILLING

JANUARY 2026

PREPARED BY

INDIAN HEALTH SERVICE

EDO DISTRICT OFFICE

CDR JOSH SIMS, PE

700 LA TERRAZA BLVD., STE.100

ESCONDIDO, CA 92025

PH: 760-735-6885

JOSHUA.SIMS@IHS.GOV

California Area Indian Health Service Revised 6/29/2022

Advertisement for Bids C-111 - 1

C-111

ADVERTISEMENT FOR BIDS

INDIAN HEALTH SERVICE

358940 MAGEE ROAD, PALA, CA 92059

SAN DIEGO COUNTY, CALIFORNIA

SCATTERED SITES WELL DRILLING

PROJECT CA22-D46

SOLICITATION NUMBER: EDO-295-D46

Engineer: IHS is the contracting authority and owner’s representative.

Indian Health Service CDR Josh Sims, PE

700 La Terraza Blvd., Suite 100 Escondido, CA 92025

Phone: 760-735-6885 E-mail: joshua.sims@ihs.gov

Owner: Donna and James Rico 35940 Magee Road Pala, CA 92059

General Notice

TheGovernment is requesting Bids for the construction of the following Project:

SCATTERED SITES WELL DRILLING

PROJECT CA22-D46/EDO-295-D46

Bids for the construction of the Project will be received in accordance with these solicitation documents.

The Project includes the following Work:

The drilling of a 5.5” min. inner diameter individual water well approximately 400 ft. deep, pump testing, water quality analysis, and pump installation in Pala, CA. Approximate coordinates are 33.364331°N 117.05664°W.

Bids will be received for a single prime Contract. Bids shall be on a lump sum and/or unit price basis, with additive alternate bid items as indicated in the accompanying Bid Form. The Project has an expected duration of 70 days.

+ + END OF ADVERTISEMENT FOR BIDS + +

Bid Form C-410 - 1

Item No. Description Unit Estimated

Quantity Bid Unit

Price Bid Price

1 Mobilization and Demobilization LS 1

Well Drilling: for 5.5” min.

inner diameter casing with annulus for filter pack

VF 400

3 Casing: 5.5” min. inner diameter PVC VF 300

4 Slotted Casing: 5.5” min. inner diameter PVC VF 100

5 Grouting VF 20

6 Filter Pack/Formation Stabilizer VF 380

7 Well Development HR 4

8 Test Pumping, including recovery HR 12

9 Well Disinfection and Water Analysis LS 1

10 Submersible Pump: 1HP EA 1

11 Drop Pipe and Submersible Cable: 1 inch Schedule 80 PVC VF 300

Total

California Area Indian Health Service Revised 5/18/2018

Measurement and Payment

01 27 00 - 1

SECTION 01 27 00

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Summary.

B. Estimated quantities.

C. Survey and measurements.

D. Payment for increased or decreased quantities.

E. Omitted items.

F. Partial payments.

G. Payment for material delivered.

H. Final payment.

I. Incidental work.

J. Description of pay items

1.2 SUMMARY

A. Work covered by this section includes method of measurement and basis of payment for all divisions included.

B. Payment for the various items of the Bid Schedules, as further specified herein, shall include all compensation to be received by the Contractor for furnishing all tools, equipment, materials, labor, supplies, manufactured articles, transportation, and temporary facilities required to complete the work in accordance with contract documents including incidentals.

C. Respective prices and payment shall constitute full compensation for all work completed including incidentals.

D. All items not expressly listed as being provided by others that are necessary for the completion of work shall be furnished and installed by the Contractor.

E. No payment shall be made for mobilization and demobilization of equipment, unless it is explicitly included as a bid item.

01 27 00 - 2

F. The Contractor, in case of unit-price items measured for payment, shall be paid for the actual amount of Work accepted and for the actual amount of materials in place, as shown by final measurement. Plan quantity items shall be paid for at the unit price for the quantities shown on the plans and tabulated in the bid form.

G. The Contractor, in case of lump sum amounts, or by plan quantities, shall be paid for the percentage of the work item completed as determined by the Engineer.

H. All units of measurement shall be standard United States convention as applied to the specific items of Work by tradition and as interpreted by the Engineer.

1.3 ESTIMATED QUANTITIES

A. All quantities stipulated in the bid schedule or other contract documents are approximate and are to be used: (1) as a basis for estimating the probable cost of the work and (2) for the purpose of comparing the bids submitted.

B. The Contractor shall be paid for actual quantities installed based on the quantities measured in the field. The actual amounts of work completed and materials furnished may differ from estimated quantities. The Contractor shall make no claim for damages, anticipated profits, or otherwise, on account of differences between the estimated amounts and the actual amount of work performed and materials furnished.

C. The payment of any partial estimate or of any retained percentage in no way shall affect the obligation of the Contractor to repair or renew any defective parts of the construction or to be responsible for all damage due to such defects.

1.4 SURVEY AND MEASUREMENTS

A. All quantity measurements shall be the responsibility of the Contractor and will be verified by the project Engineer.

B. All measurements and subsequent payments will be based on completed and accepted work performed in strict accordance with the drawings, specifications, and other contract documents.

1.5 PAYMENT FOR INCREASED OR DECREASED QUANTITIES

A. When alterations in the quantities of work are ordered and performed, the Contractor shall accept payment in full at the Contract price for the actual quantities of Work done. No allowance will be made for anticipated profits.

1.6 OMITTED ITEMS

A. Should any items contained in the Bid Form be found unnecessary for the proper completion of the Work contracted, the Engineer may eliminate such items from the Contract, and such action shall in no way invalidate the Contract, and no allowance will be made for items so eliminated in making final payment to the Contractor.

01 27 00 - 3

1.7 PARTIAL PAYMENTS

A. Partial payments shall be made monthly as the work progresses. All partial invoices and payments shall be subject to the provisions of the General and Supplementary Conditions.

1.8 PAYMENT FOR MATERIAL DELIVERED

A. When requested by the Contractor and at the discretion of the Engineer, payment may be made for all or part of the value of acceptable, non-perishable materials and equipment which are to be incorporated into Bid Items, have not been used and have been delivered to the construction site, or placed in storage places acceptable to the Engineer. Payment shall require paid invoices and proof of insurance and be subject to the provisions of the General and Supplementary Conditions.

B. No partial payment shall be made upon fuels, supplies, lumber, false work, or other materials, or on temporary structures of any kind that are not a permanent part of the Contract.

1.9 FINAL PAYMENT

A. The Engineer will make, as soon as practicable after the entire completion of the project, a final quantity invoice of the amount of the Work performed and the value of such Work. The Contracting Officer shall make final payments of the sum found due less retainages subject to provisions of the General and Supplemental Conditions.

1.10 INCIDENTAL WORK

A. Incidental work items for which separate payment will not be made includes the following items, unless explicitly included as a bid item. This is not a complete and comprehensive list – see other Technical Specifications for more information:

1. Pre-Construction photographs.

2. Project record documents

3. Traffic control plan and traffic regulation.

4. Signs.

5. Clean up and restoration of property.

6. Restoration of fences and other structures.

7. Cooperation and coordination with other contractors and utility companies.

8. Utility crossings and relocations, unless otherwise paid for.

9. Temporary utility service to buildings, as required to maintain service during construction.

10. Minor Items – such as relocation of sign posts, guard rails, rock wall, mail boxes, curbs, traffic loop detectors, pavement markings, etc., damaged as a result of construction activities.

11. Trench boxes, steel and/or wood sheeting as required, including that left in place.

12. Maintenance of all existing water flows and repair of existing water pipes.

13. Dust control.

14. Erosion control.

15. Clearing, grubbing, and stripping.

16. Loaming, seeding, grading, liming, fertilizing, mulching, and watering.

17. Routine flagman services.

01 27 00 - 4

18. Construction schedules, bonds, insurance, shop drawings, warranties, guarantees, certifications, and other submittals required by the Contract Documents.

19. Repair and replacement of water lines, culverts, under-drains, rock lined drainage trenches in streets and other utilities damaged by construction activities and corresponding proper disposal of removed materials unless otherwise paid for.

20. Weather protection.

21. Permits not otherwise paid for or provided by the Owner.

22. Visits to the project site or elsewhere by personnel or agents of the Contractor, including manufacturer’s representatives, as may be required.

23. Mobilization and demobilization, unless specifically listed in Bid Schedule.

24. Excavation including the test pits specifically shown or ordered by the Engineer to establish underground utility locations.

25. Contract administration and insurance.

26. Test pits to establish in place field soils density, groundwater conditions, or requirements for de-watering.

27. Pipe markings.

28. Construction Trailer.

PART 2 PRODUCTS – Not Used

PART 3 EXECUTION

3.1 DESCRIPTION OF PAY ITEMS

A. The following sections describe the measurement of and payment for the Work to be done under the respective items listed in the Bid Form.

B. Each unit or lump sum price stated in the Bid Form shall constitute full compensation, as herein specified, for each item of the Work completed.

SECTION 01 27 00: MEASUREMENT AND PAYMENT

A. Mobilization and Demobilization:

1. Basis of Measurement: By lump sum.

2. Basis of Payment: Includes all labor, equipment and materials to mobilize to and demobilize from the project site, including clearing and grading, to complete the work outlined in the contract documents and for temporary facilities and controls as required.

NOTE: Mobilization and demobilization line item shall not exceed 10% of total bid amount.

SECTION 31 10 00: SITE CLEARING

A. Work described in this Section shall be merged with pay item(s) defined within the Measurement and Payment portion of other Sections of this Contract.

SECTION 31 22 13: ROUGH GRADING

A. Work described in this Section shall be merged with pay item(s) defined within the Measurement and Payment portion of other Sections of this Contract.

01 27 00 - 5

SECTION 33 21 00: INDIVIDUAL WATER SUPPLY WELLS

A. Well Drilling:

1. Basis of Measurement: By vertical foot of well depth for the size specified in the bid schedule.

2. Basis of Payment: Includes drilling, reaming, formation sampling, labor, equipment, procurement and backfilling.

B. Casing:

1. Basis of Measurement: By vertical foot of well casing installed for the size and material specified in the bid schedule.

2. Basis of Payment: Includes casing, centralizers, drive shoes, well cap, fittings and accessories.

C. Screen or Slotted Casing:

1. Basis of Measurement: By vertical foot of well screen or slotted casing installed for the size and material specified in the bid schedule.

2. Basis of Payment: Includes screen or slotted casing, sieve analysis, seals, couplings, and installation.

D. Grouting:

1. Basis of Measurement: By vertical foot of grout installed.

2. Basis of Payment: Includes materials and placement of grout.

E. Filter Pack/Formation Stabilizer:

1. Basis of Measurement: By vertical foot of filter pack/formation stabilizer installed.

2. Basis of Payment: Includes materials and placement of filter pack/formation stabilizer.

F. Well Development:

1. Basis of Measurement: By the hour of development time. Time required for hauling water, rigging up, and other preparatory or disassembly work is not included.

2. Basis of Payment: Includes well development by approved methods.

G. Test Pumping:

1. Basis of Measurement: By the hour during pumping operations. Payment not made for mobilization, demobilization, or set up time.

2. Basis of Payment: Includes provision of pump, drop pipe, and power source, step drawdown pump test, recovery test and recording of water level.

H. Well Disinfection and Water Analysis:

1. Basis of Measurement: By Lump Sum.

2. Basis of Payment: Includes well disinfection, water sampling, and water quality tests.

I. Submersible pump and motor: 1 hp

1. Basis of Measurement: By each.

2. Basis of Payment: Includes procurement and installation of submersible pump and motor with warranty, fittings, and accessories.

J. Drop pipe & submersible cable:

01 27 00 - 6

1. Basis of Measurement: By vertical foot for the size and material stated in the bid schedule.

2. Basis of Payment: Includes all labor and equipment to install drop pipe, submersible cable, foot valve, connections, fittings and accessories.

END OF SECTION

California Area Indian Health Service Revised 6/6/2018

Submittal Procedures 01 33 00 - 1

SECTION 01 33 00

SUBMITTAL PROCEDURES

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Submittal procedures.

B. Construction progress schedules.

C. Proposed products list.

D. Product data.

E. Shop drawings.

F. Samples.

G. Design data.

H. Test reports.

I. Certificates.

J. Manufacturer's instructions.

K. Manufacturer's field reports.

L. Erection drawings.

1.2 SUBMITTAL PROCEDURES

A. Transmit each submittal with Engineer accepted form.

B. Sequentially number transmittal forms. Mark revised submittals with original number and sequential alphabetic suffix.

C. Identify Project, Contractor, subcontractor and supplier; pertinent drawing and detail number, and specification section number, appropriate to submittal.

D. Apply Contractor's stamp, signed or initialed certifying that review, approval, verification of products required, field dimensions, adjacent construction Work, and coordination of information is in accordance with requirements of the Work and Contract Documents.

E. Schedule submittals to expedite Project, and deliver to Engineer at address as shown in Invitation to Bid. Coordinate submission of related items.

01 33 00 - 2

F. For each submittal for review, allow 7 calendar days excluding delivery time to and from Contractor.

G. Identify variations from Contract Documents and product or system limitations which may be detrimental to successful performance of completed Work.

H. Allow space on submittals for Contractor and Engineer review stamps.

I. When revised for resubmission, identify changes made since previous submission.

J. Distribute copies of reviewed submittals as appropriate. Instruct parties to promptly report inability to comply with requirements.

K. Submittals not requested will not be recognized or processed.

1.3 CONSTRUCTION PROGRESS SCHEDULES

A. Submit initial schedules within 7 calendar days after date of Owner-Contractor Agreement. After review, resubmit required revised data within 10 calendar days.

B. Submit revised Progress Schedules with every Application for Payment if schedule has deviated from previous version submitted. If Work remains on last submitted Progress Schedule, no revised schedule should be submitted.

C. Distribute copies of reviewed schedules to Project site file, subcontractors, suppliers, and other concerned parties.

D. Instruct recipients to promptly report, in writing, problems anticipated by projections indicated in schedules.

E. Show complete sequence of construction by activity, identifying Work of separate stages and other logically grouped activities. Indicate early and late start, early and late finish, float dates, and duration.

F. Indicate estimated percentage of completion for each item of Work at each submission.

G. Submit separate schedule of submittal dates for shop drawings, product data, and samples, including Owner furnished products and products identified under Allowances, and dates reviewed submittals will be required from Engineer. Indicate decision dates for selection of finishes.

H. Indicate delivery dates for Owner furnished products and products identified under Allowances.

I. Revisions to Schedules:

1. Indicate progress of each activity to date of submittal, and projected completion date of each activity.

2. Identify activities modified since previous submittal, major changes in scope, and other identifiable changes.

01 33 00 - 3

3. Prepare narrative report to define problem areas, anticipated delays, and impact on Schedule.

Report corrective action taken, or proposed, and its effect, including effect of changes on schedules of separate contractors.

1.4 PROPOSED PRODUCTS LIST

A. Within 15 calendar days after date of Owner-Contractor Agreement, submit list of major products proposed for use, with name of manufacturer, trade name, and model number of each product.

B. For products specified only by reference standards, give manufacturer, trade name, model or catalog designation, and reference standards.

1.5 PRODUCT DATA

A. Product Data: Submit to Engineer for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents.

B. Submit number of copies Contractor requires, plus two copies Engineer will retain.

C. Mark each copy to identify applicable products, models, options, and other data. Supplement manufacturers' standard data to provide information specific to this Project.

D. Indicate product utility and electrical characteristics, utility connection requirements, and location of utility outlets for service for functional equipment and appliances.

E. After review, produce copies and distribute in accordance with SUBMITTAL PROCEDURES article and for record documents described in Section 01 70 00 - Execution and Closeout Requirements.

1.6 SHOP DRAWINGS

A. Shop Drawings: Submit to Engineer for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents.

B. Indicate special utility and electrical characteristics, utility connection requirements, and location of utility outlets for service for functional equipment and appliances.

C. When required by individual specification sections, provide shop drawings signed and sealed by professional engineer responsible for designing components shown on shop drawings.

1. Include signed and sealed calculations to support design.

2. Submit drawings and calculations in form suitable for submission to and approval by authorities having jurisdiction.

3. Make revisions and provide additional information when required by authorities having jurisdiction.

D. Submit number of opaque reproductions Contractor requires, plus two copies Engineer will retain.

01 33 00 - 4

E. After review, produce copies and distribute in accordance with SUBMITTAL PROCEDURES article and for record documents described in Section 01 70 00 - Execution and Closeout Requirements.

1.7 SAMPLES

A. Samples: Submit to Engineer for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents.

B. Samples for Selection as Specified in Product Sections:

1. Submit to Engineer for aesthetic, color, or finish selection.

2. Submit samples of finishes from full range of manufacturers' standard colors, textures, and patterns for Engineer selection.

3. Color and finish samples shall be true samples, not photographs.

C. Submit samples to illustrate functional and aesthetic characteristics of Products, with integral parts and attachment devices. Coordinate sample submittals for interfacing work.

D. Include identification on each sample, with full Project information.

E. Submit number of samples specified in individual specification sections; Engineer will retain one sample.

F. Reviewed samples which may be used in the Work are indicated in individual specification sections.

G. Samples will not be used for testing purposes unless specifically stated in specification section.

H. After review, produce duplicates and distribute in accordance with Submittal Procedures article and for record documents purposes described in Section 01 70 00 - Execution and Closeout Requirements.

1.8 DESIGN DATA

A. Submit for Engineer's knowledge as contract administrator or for Owner.

B. Submit for information for limited purpose of assessing conformance with information given and design concept expressed in Contract Documents.

1.9 TEST REPORTS

A. Submit for Engineer's knowledge as contract administrator or for Owner.

B. Submit test reports for information for limited purpose of assessing conformance with information given and design concept expressed in Contract Documents.

01 33 00 - 5

1.10 CERTIFICATES

A. When specified in individual specification sections, submit certification by manufacturer, installation/application subcontractor, or Contractor to Engineer, in quantities specified for Product Data.

B. Indicate material or product conforms to or exceeds specified requirements. Submit supporting reference data, affidavits, and certifications as appropriate.

C. Certificates may be recent or previous test results on material or Product, but must be acceptable to Engineer.

1.11 MANUFACTURER'S INSTRUCTIONS

A. When specified in individual specification sections, submit printed instructions for delivery, storage, assembly, installation, start-up, adjusting, and finishing, to Engineer for delivery to Owner in quantities specified for Product Data.

B. Indicate special procedures, perimeter conditions requiring special attention, and special environmental criteria required for application or installation.

1.12 MANUFACTURER'S FIELD REPORTS

A. Submit reports for Engineer's benefit as contract administrator or for Owner.

B. Submit report within 48 hours of observation to Engineer for information.

C. Submit for information for limited purpose of assessing conformance with information given and design concept expressed in Contract Documents.

1.13 ERECTION DRAWINGS

A. Submit drawings for Engineer's benefit as contract administrator or for Owner.

B. Submit for information for limited purpose of assessing conformance with information given and design concept expressed in Contract Documents.

C. Data indicating inappropriate or unacceptable Work may be subject to action by Engineer or Owner.

PART 2 PRODUCTS - Not Used

PART 3 EXECUTION - Not Used

01 33 00 - 6

SUBMITTAL REVIEW FORM Project CA22-D46/EDO-295-D46

Received by Proj. Engr. Submittal No.

Date Initial Contract Name

Contract No.

Return to Contractor Contractor Date Initial Project No.

ITEM DESCRIPTION* ACTION BY

NO. (Indicate Type, Model No., Manufacturer, etc.) OWNER

PRE-CONSTRUCTION SUBMITTALS

1. Progress Schedule

2. Schedule of Values

MATERIAL SUBMITTALS REQUIRED

3. Well Casing [33 21 00]

4. Well Cap [33 21 00]

5. Well screen [33 21 00]

6. Drop Pipe [33 21 00]

7. Check Valve [33 21 00]

8. Drilling Fluids [33 21 00]

9. Surface/Annular Seal [33 21 00]

10. Filter Pack [33 21 00]

11. Pump & Motor [33 21 00]

12. Submersible Cable [33 21 00]

01 33 00 - 7

POST CONSTRUCTION SUBMITTALS

13. Project Record Documents [33 21 00]

14. Copy of Driller’s Log Book [33 21 00]

15. Well Performance Testing [33 21 00]

16. Bacteriological Report [33 21 00]

17. Water Quality Testing [33 21 00]

* If the item description for a material submittal is not the exact brand or model specified by the Owner, then 3 copies of the manufacturer's descriptive literature, catalog cut-sheets, etc. must be included with the submittal. For design submittals requiring design calculations, shop drawings, wiring and control diagrams, etc., 3 copies of each must also be included with this submittal. If item is exact brand or model, list brand, model and "as specified".

Submitted by:

Contractor’s Signature Date

IHS Concurrence:

Project Engineer’s Signature Date

California Area Indian Health Service Revised 6/6/2017

Site Clearing 31 10 00 - 1 of 2

SECTION 31 10 00

SITE CLEARING

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Removing surface debris.

2. Removing designated paving and curbs.

3. Removing designated trees, shrubs, and other plant life.

4. Removing abandoned utilities.

5. Excavating topsoil.

B. Related Sections:

1. Section 02 41 16 - Structure Demolition: Removing underground storage tanks and designated utilities.

2. Section 31 22 13 - Rough Grading.

3. Section 31 23 18 - Rock Removal.

1.2 QUALITY ASSURANCE

A. Perform cutting and removal of paving and curbs in accordance with California Department of Transportation (Caltrans) standards.

PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

3.1 EXAMINATION

A. Section 01 30 00 - Administrative Requirements: Verification of existing conditions before starting work.

B. Verify existing plant life designated to remain is tagged or identified.

3.2 PREPARATION

A. Call California Dig Alert at 811 not less than three working days before performing Work.

Contact Owner for information about utilities not identifiable by California Dig Alert.

1. Request underground utilities to be located and marked within and surrounding construction areas.

California Area Indian Health Service Revised 6/6/2017

Site Clearing 31 10 00 - 2 of 2

3.3 PROTECTION

A. Locate, identify, and protect utilities indicated to remain, from damage.

B. Protect trees, plant growth, and features designated to remain, as final landscaping.

C. Protect bench marks, survey control points, and existing structures from damage or displacement.

3.4 CLEARING

A. Clear areas required for access to site and execution of Work to minimum depth of 3 inches.

B. Remove trees and shrubs within marked areas. Remove stumps, root system to depth of 12 inches, and surface rock.

C. Clear undergrowth and deadwood, without disturbing subsoil.

3.5 REMOVAL

A. Remove debris, rock, and extracted plant life from site.

B. Partially remove paving and curbs as indicated on Drawings. Neatly saw cut edges at right angle to surface.

C. Remove abandoned utilities. Indicated removal termination point for underground utilities on Record Documents.

D. Continuously clean-up and remove waste materials from site. Do not allow materials to accumulate on site.

E. Do not burn or bury materials on site. Leave site in clean condition.

3.6 TOPSOIL AND SUBSOIL EXCAVATION

A. Excavate topsoil and subsoil from areas to be further excavated or regraded, without mixing with foreign materials for use in finish grading.

B. Do not excavate wet topsoil or subsoil

C. Stockpile in area designated on site to height not exceeding 8 feet and protect from erosion.

D. When excavating through roots, perform Work by hand and cut roots with sharp axe.

E. Coordinate with Engineer for local placement of excess topsoil.

California Area Indian Health Service Revised 3/15/2018

Rough Grading 31 22 13 - 1 of 3

SECTION 31 22 13

ROUGH GRADING

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Excavating topsoil.

2. Excavating subsoil.

3. Cutting, grading, rough contouring, and compacting site for site structures, building pads, and other facilities.

B. Related Sections:

1. Section 02 41 16 - Structure Demolition.

2. Section 31 10 00 - Site Clearing: Excavating topsoil.

3. Section 31 23 16 - Excavation: Building excavation.

4. Section 31 23 17 - Trenching: Trenching and backfilling for utilities.

5. Section 31 23 18 - Rock Removal.

1.2 REFERENCES

A. ASTM International:

1. ASTM D1556 - Standard Test Method for Density and Unit Weight of Soil in Place by the

Sand-Cone Method.

2. ASTM D1557 - Standard Test Methods for Laboratory Compaction Characteristics of Soil

Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3)).

3. ASTM D6938 - Standard Test Methods for In-Place Density and Water Content of Soil and

Soil-Aggregate by Nuclear Methods (Shallow Depth).

1.3 CLOSEOUT SUBMITTALS

A. Section 01 70 00 - Execution and Closeout Requirements: Requirements for submittals.

B. Project Record Documents: Accurately record actual locations of utilities remaining by horizontal dimensions, elevations or inverts, and slope gradients.

PART 2 PRODUCTS

2.1 MATERIALS

NOT USED

31 22 13 - 2 of 3

PART 3 EXECUTION

3.1 EXAMINATION

A. Section 01 30 00 - Administrative Requirements: Verification of existing conditions before starting work.

B. Verify survey bench mark and intended elevations for the Work are as indicated on Drawings.

3.2 PREPARATION

A. Call California Dig Alert at 811 not less than three working days before performing Work.

Contact Owner for information about utilities not identifiable by California Dig Alert.

1. Request underground utilities to be located and marked within and surrounding construction areas.

B. Identify required lines, levels, contours, and datum.

C. Protect utilities indicated to remain from damage.

D. Protect plant life, lawns, and other features remaining as portion of final landscaping.

E. Protect bench marks, survey control point, existing structures, fences, sidewalks, paving, and curbs from excavating equipment and vehicular traffic.

3.3 FILLING

A. Fill areas to contours and elevations with unfrozen materials.

B. Place material in continuous layers as follows:

1. Subsoil Fill: Maximum 12 inches compacted depth.

2. Structural Fill: Maximum 6 inches compacted depth.

C. Maintain optimum moisture content of fill materials to attain required compaction density.

D. Slope grade away from building or structure minimum 2 percent slope for minimum distance of 10 ft, unless noted otherwise.

E. Make grade changes gradual. Blend slope into level areas.

F. Repair or replace items indicated to remain damaged by excavation or filling.

3.4 FIELD QUALITY CONTROL

A. Sections 01 40 00 - Quality Requirements and 01 70 00 - Execution and Closeout Requirements:

Field inspecting, testing, adjusting, and balancing.

B. Perform laboratory material tests in accordance with ASTM D1557.

31 22 13 - 3 of 3

C. Perform in place compaction tests in accordance with the following:

1. Density Tests: ASTM D1556 or ASTM D6938.

2. Moisture Tests: ASTM D6938.

D. When tests indicate Work does not meet specified requirements, remove Work, replace and retest at Contractor’s expense.

California Area Indian Health Service Revised 1/8/2018

Individual Water Supply Wells 33 21 00 - 1 of 11

SECTION 33 21 00

INDIVIDUAL WATER SUPPLY WELLS

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Drilling and casing water well.

2. Pump and controller.

3. Water and system testing and certification.

B. Related Sections:

1. Section 26 05 03 - Equipment Wiring Connections: Wiring and power supply to well pump and controller.

2. Section 26 05 19 - Low-Voltage Electrical Power Conductors and Cables.

3. Section 26 05 33 - Raceway and Boxes for Electrical Systems.

4. Section 31 23 17 - Trenching: Excavating and backfilling for conduit and pipe from well head to building.

5. Section 33 12 13 - Water Service Connections.

6. Section 33 13 00 - Disinfecting of Water Utility Distribution.

1.2 REFERENCES

A. ASTM International:

1. ASTM A53 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.

2. ASTM C150 - Standard Specification for Portland Cement.

3. ASTM D1785- Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120

4. ASTM F480 - Standard Specification for Thermoplastic Well Casing Pipe and Couplings

Made in Standard Dimension Ratios (SDR), SCH 40 and SCH 80.

B. American Water Works Association:

1. AWWA A100 - Standard for Water Wells.

2. AWWA C651 - Disinfecting Water Mains

3. AWWA C652 - Disinfection of Water Storage Facilities

C. California Department of Water Resources (DWR)

1. Bulletins 74-81 and 74-90 Combined: Water Well Standards.

D. National Electrical Manufacturers Association:

1. NEMA MG 1 - Motors and Generators.

2. NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum).

33 21 00 - 2 of 11

1.3 SYSTEM DESCRIPTION

A. Water well with the following characteristics:

1. Anticipated Formation type: [Stable Consolidated Formation. This type of well is built to obtain water at various depths from consolidated formations, either fractured or unfractured.

It is not cased or screened in the producing zone for no formation stabilization or filtering is needed. The well may be cased through the formations above the producing zone, if they are unconsolidated or unstable, to prevent borehole collapse or to exclude water of undesirable quality. A minimum casing length with an annular seal is required to prevent surface water infiltration.]

2. Drill Hole: 11 inch minimum diameter, to depth indicated by Engineer, depending on location of water-bearing formations. Drill hole required to depth of casing.

3. Casing Size: 5.5” inch minimum inside diameter, per Drawings, to depth indicated by Engineer.

4. Surface Seal: 20 feet deep minimum, or to depth required to seal off undesirable water, as directed by Engineer.

5. Total Well Depth: Per bid schedule. Total depth may be altered by Engineer, depending on location of water-bearing formations.

6. Pump Depth: Per bid schedule. Pump depth may be altered by Engineer, depending on location of water-bearing formations.

1.4 PERFORMANCE REQUIREMENTS

A. Water well capable of producing minimum 5 gallons of water per minute.

B. Maximum Suspended Solids in Delivered Water: 5 ppm.

1.5 SUBMITTALS

A. Section 01 33 00 - Submittal Procedures: Requirements for submittals.

B. Product Data: Well casing, screens, drop pipe, drilling fluids, surface seal, annular transition seal, filter pack, pump, motor, pump controller, booster pump, pressure system, storage tan and all accessories. Include data indicating rated capacities, weights, accessories, electrical nameplate data, and wiring diagrams.

C. Submit proof of California C-57 license to perform this work.

1.6 CLOSEOUT SUBMITTALS

A. Section 01 70 00 - Execution and Closeout Requirements: Requirements for submittals.

B. Project Record Documents: Accurately record actual locations of well, depth, subsoil strata, and drilling difficulties encountered on IHS well log (form attached) or on State of California Well Completion Report.

C. Submit signed copy of driller's log book statements.

D. Submit executed certification of well pump after performance testing.

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E. Approved and completed county well drilling permit, if applicable.

F. Results of step drawdown testing on IHS form (form included).

G. Operation and Maintenance Data: Submit equipment manuals.

H. Provide minimum 5 year written warranty for submersible pump.

1.7 QUALITY ASSURANCE

A. Perform Work in accordance with AWWA A100 and State of California Water Well Standards.

B. Maintain separation distances per California DWR standards or the following guidelines:

1. Any sewer (sanitary or storm, main or lateral): 50 feet.

2. Septic tank, drainfield or pressure-dosed mound: 100 feet.

3. Cesspool or seepage pit: 150 feet.

4. Property line, home or structure: 10 feet.

1.8 QUALIFICATIONS

A. Drilling Firm: Company specializing in performing Work of this section with minimum 5 years’ experience and licensed in State of California.

PART 2 PRODUCTS

2.1 MATERIALS

A. Well Casing (Steel): ASTM A53, Grade B, ¼ inch wall thickness black steel pipe, with ventilated well cap.

B. Well Casing (PVC): ASTM D1785 with ASTM F480 couplings, Type 1, Sch. 80 or SDR 17 PVC, with flush thread fittings and Buna-N O-ring on male end, with ventilated well cap. PVC slotted casing to have a required slot opening of 0.032 inches, unless otherwise specified on drawings or unless otherwise directed by Engineer.

C. Centralizers: Bow-spring type, sized for casing and borehole diameter.

D. Screens: Type 304 Stainless steel continuous slot (as specified in drawings), wire-wound design, fabricated by circumferentially wrapping triangularly shaped wire around circular array of rods or perforated channels. Wire configuration to produce inlet slots with sharp outer edges, widening inwardly to minimize clogging.

E. Drop Pipe (Steel): ASTM A53, Grade B, 1 inch internal diameter schedule 40 galvanized pipe.

F. Drop Pipe (PVC): ASTM D1785, Sch. 80 PVC, with threaded both ends (TBE) fittings and connectors.

G. Drop Pipe Joints: Teflon tape on all threaded connections.

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H. Check Valve: Stainless steel construction, threaded couplings, rated for well use.

I. Drilling Fluids: Water-based or natural drilling fluids.

J. Surface Seal:

1. Sand cement grout at ratio not to exceed 2 parts sand to 1 part Portland cement.

a. Standard mix ratio would not exceed 188 pounds of sand to 94 pound sack of Portland cement and about 7 gallons of clean water.

2. Bentonite seal may be allowable if approved by Engineer.

a. Bentonite clay mixtures shall be mixed with clean water prior to placement at recommended ratios, typically about 1 gallon of water for every 2 pounds of bentonite.

Bentonite preparations must be given adequate time to hydrate (typically over one hour) prior to placement.

b. Granulated or powdered bentonite shall be less than 1/5 the radial thickness of the annular space. Direct placement of dry bentonite into annular space shall be limited to short sections below the water line, and only with Engineer approval.

K. Annular Transition Seal (where required): Mixture of bentonite with minimum amount of clean water required to facilitate placement.

L. Filter Pack Material:

1. Clean, well-rounded, smooth and uniform, mostly grains. Material to be mostly siliceous with not more than 5 percent calcareous material by weight and a minimum specific gravity of 2.5.

2. Determine grading of filter pack material from sieve analyses of aquifer materials. 30-percent-passing size of filter pack material shall be 4 to 6 times 30-percent-passing size of aquifer sample having the finest grain-size distribution. Minimum uniformity coefficient of filter pack material shall be 2.5.

M. Formation Stabilizer: Well rounded. Grain size distribution should be equal to or slightly larger than the natural formation.

N. Concrete: Refer to Section 03 30 00.

2.2 SUBMERSIBLE PUMP

A. Manufacturers:

1. Goulds Pumps.

2. Grundfos.

3. Substitutions Permitted: Section 01 60 00 - Product Requirements.

B. Type: Vertical shaft, multiple stage, close coupled. Horsepower and performance based on field conditions, may be referenced in bid schedule.

C. Casing: Cast iron casing with stainless steel housing and intake screen, check valve with stainless steel stem and valve seat with rubber seal built into discharge casting.

D. Impellers and Diffusers: Bronze or stainless steel.

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E. Shaft: Stainless steel with stainless steel shaft sleeve.

F. Motor: NEMA MG 1, submersible type:

1. Characteristics: ½ hp to 1 ½ hp, based on site conditions; 230 volt, single phase 60 Hertz.

G. Pump: Submersible type for deep well pump, water lubricated:

1. Operating Performance: minimum 5 gpm flow capacity, based on site conditions.

2. Pump Capacity (Base Bid Criteria): minimum 5 gpm.

H. Pump Controller: NEMA 250 Type 4 enclosure with main disconnect interlocked with door, containing across-the-line electric motor starter with starting relay and ambient compensate quick trip overloads in each phase with manual trip button and reset button; circuit breaker, control transformer, hand-off-automatic selector switches, pilot light.

I. Disconnect: NEMA 250 Type 4 enclosure.

J. If directed by Engineer, install PVC or stainless steel shroud over pump impellers.

K. Control Voltage: 230 VAC.

L. Screens: Stainless steel.

2.3 BOOSTER PUMP

A. Manufacturers:

1. Goulds Pumps.

2. Grundfos.

3. Substitutions Permitted: Section 01 60 00 - Product Requirements.

B. Performance: Minimum 10 gallons per minute at 60 psi.

C. Impeller: Stainless Steel.

2.4 PRESSURE SYSTEM:

A. Enclosure:

1. Manufacturer: Dyer Manufacturing Model D-207HD.

2. Substitutions Permitted: Section 01 60 00 - Product Requirements.

3. Continuous stainless steel hinge along edge – minimum 3 ½ inch width.

4. Add continuous strapping around base to ensure bolts do not pull out of fiberglass flange.

B. Pressure Tank:

1. Manufacturer: Amtrol Well-X-Trol Model WX-250.

2. Substitutions Permitted: Section 01 60 00 - Product Requirements.

3. Minimum 13 gallons of drawdown in 30 psi to 50 psi pressure range.

C. Pressure Sensing Switch: Low voltage relay type, adjustable settings to start at 20 to 40 psig and shut-off at 40 to 60 psig.

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D. Pressure Gauge: 2” diameter dial, Steel case with ¼ in NPT, Pressure Range 0-100 psi.

E. Pressure Relief Valve: Pressure setting 75 psi.

1. Manufacturer: Goulds Model AV12-05

2. Substitutions Permitted: Section 01 60 00 - Product Requirements.

F. Pressure System Piping:

1. ASTM A53 Sch. 40 galvanized steel.

2. Joints: Teflon tape on all threaded connections

3. Ball Valve: 1 inch.

4. Size: 1 inch to 1.5 inch.

2.5 WATER SERVICE PIPE AND BUILDING CONNECTION

A. Refer to Section 33 12 13.

2.6 ELECTRICAL WIRE AND CONDUIT

A. Refer to Sections 26 05 03, 26 05 19, and 26 05 33.

2.7 INDIVIDUAL WATER STORAGE TANK

A. Tank: Seamless linear polyethylene, with tapping for installation of piping and accessories:

1. Tank Volume: 500 gal, unless otherwise indicated in drawings.

2. 16” diameter manhole

3. NSF 61 Approved.

4. Black color unless otherwise specified in Drawings.

PART 3 EXECUTION

3.1 EXAMINATION

A. Section 01 30 00 - Administrative Requirements: Verification of existing conditions before starting work.

B. Verify site conditions are capable of supporting equipment for performing drilling operations and testing.

3.2 PREPARATION

A. Protect structures near well from damage.

B. Disinfect all tools and equipment prior to lowering into well to prevent contamination.

C. Method of drilling will be left to the discretion of the Contractor. Equipment used shall be in good repair and capable of drilling in unconsolidated and consolidated formations.

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D. Do not set drilling rod, drop pipe, submersible cable, or any other items to go down the hole on the ground.

3.3 DRILLING

A. Drill concentric well shaft to diameters and depths required to meet performance criteria.

B. Place well casing immediately after drilling. Set firmly in place.

C. Clean shaft bottom of loose material.

D. Maintain well opening and casing free of contaminating materials.

E. Maintain minimum 10 ppm Cl residual in any drilling fluid.

3.4 SURFACE SEALING

A. Allow inspection of casing prior to placement of surface seal.

B. Place surface seal tight to surrounding work with minimum 2” thickness. Method of sealing shall be approved by Engineer prior to starting. Method of placement shall force grout or bentonite under pressure from the bottom of the space, sealed towards the surface in a single operation.

C. Type III or Type V Portland Neat Cement shall not be used in any grout when casing material is

PVC.

D. Where there is a transition in borehole from Portland Cement grout to filter pack or formation stabilizer, a 5 foot depth minimum clay annular transition seal shall be installed between the grout seal and formation stabilizer or filter pack layers.

E. No drilling, test pumping, or other work permitted in well within number of hours shown below to allow grout to cure properly:

Type of Portland Neat Cement Minimum Curing Time

Type I 72 hours

Type III 48 hours

Type V 6 hours

3.5 WELL CONSTRUCTION

A. Size, locate and install well screens according to AWWA A100.

B. Screen sections are joined by welded or threaded connections. If joints are to be welded, the welding rod must be made of material suitable for joining corrosion resistant materials. Where dissimilar metals are joined, a dielectric coupling or dissimilar metals adapter shall be used.

C. A suitable length of riser pipe should be used on top of the screen, minimum 5 feet in length above screen, where screen is of smaller diameter than casing.

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D. Install centralizers at 40 foot intervals where required to maintain casing centered in borehole.

E. The grading of the filter pack material shall be selected by the Contractor and approved by the Engineer based on the formation samples and the driller's log.

F. Before placement, the filter pack material should be treated with a chlorine solution having 50-mg/l free-chlorine residual.

G. The filter pack shall be introduced uniformly and continuously to minimize or eliminate hydraulic segregation and bridging. The filter pack shall be placed by gravity, with use of a tremie pipe recommended. The filter pack shall extend at least 25 percent of the screen length above the top of the screen and riser pipe.

H. Cut off shaft top 18 inches above grade. Do not permit metal cuttings to enter casing.

I. Weld or glue cap on top of casing at completion. Remove cap when installing water system.

3.6 DEVELOPMENT

A. Use one of the following methods for well development:

1. Surging or swabbing with plungers (not allowed for PVC slotted casing).

2. Surging with compressed air.

3. High velocity water jetting, or

4. Combinations of the above listed methods.

B. Pumping or bailing is not considered well development.

3.7 DISINFECTION

A. Well disinfection shall comply with California Department of Water Resources Bulletin 74-81, Water Well Standards.

B. Inject and circulate a chlorine solution into well so that the chlorine concentration is at least 50 ppm.

C. Maintain disinfectant in well for 24 hours.

D. Positive bacteriological results require repeated well disinfection and samples retaken until negative results are obtained. Contractor shall notify Engineer of positive bacteriological results within 24 hours.

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3.8 WATER QUALITY TESTING

A. Collect water samples (below) during the latter portion of the pump test and submit them to an EPA certified laboratory. Record date, time and temperature of each sample. Conform to all lab-sampling requirements.

Antimony Arsenic Barium

Cadmium Chromium Copper

Lead Mercury Nitrate (as NaNO3)

Selenium Silver Alkalinity

Calcium Chloride Corrosivity (Langelier Index)

Fluoride Hardness (Total) Hardness (Carbonate)

Iron Manganese pH

Total Dissolved Solids Total coliform bacteria E. coli bacteria

B. Contractor will furnish sample containers.

3.9 TEST PUMPING

A. Notify Engineer 3 days prior to test pumping.

B. Discharge shall be measured with an accurate totalizing meter and stopwatch. Discharge shall be maintained within plus or minus 5 percent of the designated rate by means of a gate valve or throttling device.

C. Discharged water shall be pumped from the discharged line to the nearest storm sewer or ditch to prevent recirculation of discharged water into the aquifer being tested as approved by the Project Engineer.

D. Test pumping shall be conducted at multiple flow rates with the minimum flow rate tested of 25% of the desired well capacity (as stated in 1.4.A), and the maximum flow rate up to 2 times the desired well capacity. Test pumping rates and durations shall be approved by the Engineer prior to commencing the testing.

1. Typical flow rates would be at 100% and 200% of the desired well capacity (5 gallons per minute and 10 gallons per minute, in most cases). However, pumping rates may be adjusted by the Engineer prior to the start of the pump test to match realistic flow rates the well can achieve.

E. It is anticipated that test pumping will be performed according to the following schedule:

Predominant Aquifer Material Minimum Pumping Time, hrs Fractured Rock 12 Silt, Clay, Fine Sand 8 Medium sand and coarser materials 4

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Running the test beyond these times requires Project Engineer approval.

F. Measure and record the drawdown and time of reading the test pump form according to the following schedule:

1. First 10 minutes--drawdown recorded every 1 minute.

2. Next 55 minutes--drawdown recorded every 5 minutes.

3. Next 2 hours--drawdown recorded every 15 minutes.

4. Final hours--drawdown recorded every 30 minutes.

G. Record drawdown measurements at a given flow rate until the water level stabilizes for one hour.

Each time period shall be a minimum of 2 hours unless otherwise approved by Engineer.

Stabilization shall be less than 6 inches of drop in water level over an uninterrupted 60 minute period.

H. Immediately upon completion of the test pumping, take recovery measurements and record them on the Aquifer Test Data form (form attached). The recovery readings to be measured according to the following schedule:

1. First 5 minutes--recovery readings every 1-minute.

2. Next 55 minutes--recovery reading every 5 minutes.

3. Final hours--recovery reading every 15 minutes.

I. Recovery readings are for two hours or until the water level recovers to within 1 foot of the static water level, whichever comes first.

3.10 DESTRUCTION

A. Destroy wells when there is insufficient capacity, unsatisfactory water quality, poor alignment, loss of tools, or other unforeseen problems.

B. Adhere to State and local health department rules and regulations for well destruction.

C. Well destruction due to contamination, poor alignment, loss of tools, or any other cause attributable to the Contractor, will be conducted at the Contractor's expense. Costs for well drilling and construction costs associated with such improperly constructed wells shall also be borne by the Contractor.

3.11 INSTALLATION - PUMP

A. Install according to manufacturer’s instructions.

B. Install at depth specified by Engineer.

C. Install a check valve 20 feet above pump and immediately above well casing.

3.12 INSTALLATION - PRESSURE SYSTEM

A. Locate pressure system per Drawings.

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B. Concrete installation: Refer to Sections 03 10 00, 03 20 00, and 03 30 00 and Drawings. Concrete slab shall be sloped to prevent water accumulation around well or pressure system.

C. Anchor the enclosure base to the concrete slab with stainless steel anchor bolts.

D. Use galvanized steel for all nuts and bolts.

E. Use caulking between enclosure base and the concrete slab.

3.13 INSTALLATION – WATER STORAGE TANK

A. Locate tank at location specified by Construction Inspector.

B. Scarify 6 inches of existing topsoil and remove all organic material and debris from tank perimeter.

C. Grade and level 5 feet beyond tank perimeter and slope soils a minimum of 2 percent for a distance of 5 feet away from the tank base ring to preclude ponding of water adjacent to the tank base ring.

D. Install a 6 inch galvanized gravel ring according to the manufacturer's installation instruction.

Completely fill gravel ring with 3/8" round pea gravel.

E.…