SF1442_with_Sections_(233).pdf

Printed: August 28, 2015

BID SCHEDULE - BASE YEAR

The following Bid Schedule is based on estimated quantities required to meet the specifications. The total extended prices shall be used for bid evaluation purposes only. The actual amount to be paid by the Government under the contract shall be computed on the actual quantities installed at the unit bid prices awarded. Work performed under the contract will be ordered by issuance of delivery orders in accordance with clause 52.216-18 Ordering (See Section I).

The designated ordering office is the Contracting Office, Indian Health Service Service/California Area Office, Sacramento, CA.

Mendocino, Lake, and Sonoma Counties Base Year (From Contract Award to one Year from Date of Award)

ITEM DESCRIPTION

ESTIMATED

QUANTITY UNIT UNIT PRICE TOTAL PRICE

101 Mobilization & Demobilization - Section 02100 A. Mendocino County 3 EA B. Lake County 2 EA C. Sonoma County 2 EA

102 Imported Pipe Embedment - Section 02200 10 CY

103 Imported Structural Fill - Aggregate Subbase - Section 02200 10 CY

104 Imported Structural Fill - Aggregate base - Section 02200 10 CY

105 Rip Rap - Section 02205 24 TON

106 Asphalt Paving - Section 02510 20 SY

107 Monitoring Wells - Section 02520 6 EA

108 Curtain Drain - Section 02620 100 LF

109 PVC Water Main - Section 02667 A. 2-inch 200 LF

110 C900 CL150 PVC Water Main - Section 02667 B. 4-inch 200 LF C. 6-inch 200 LF

111 C900 CL200 PVC Water Main - Section 02667 B. 4-inch 200 LF C. 6-inch 200 LF

112 Flush Hydrant Assembly - Section 02667 A. 2-inch 1 EA B. 4-inch 1 EA C. 6-inch 1 EA

113 Gate Valve and Box - Section 02667 A. 2-inch 1 EA B. 4-inch 1 EA C. 6-inch 1 EA

114 (N) Water Main Connection to (E) Water Main - Section 02667 1 EA

115 Steel Pipe Encasement - Section 02667 20 LF

116 Water Service Line - Section 02668 A. 1-inch 200 LF

B. 11/4-inch 600 LF

117 Water Meter and Box - Section 02668 5 EA

118 Water Service Connection to Water Main - Section 02668 5 EA

119 Water Service Connection to House - Section 02668 A. Without PRV 4 EA B. With PRV 1 EA

120 Curb Stop and Box -Section 02268 A. 1-inch 4 EA B. 1 1/4-inch 1 EA

121 Well Drilling - Section 02671 1200 LF

122 Well Casing - Section 02671 A. 0.25" wal Thickness 180 LF B. 0.156" Wall Thickness 180 LF

123 Well Grouting - Section 02671 140 LF

124 Well Development - Section 02671 40 HR

125 Well Screen - Section 02671 24 LF

126 PVC Slotted Casing - Section 02671 10 LF

127 Filter Pack - Section 02671 40 LF

128 Test Pumping - Section 02671 32 HR

129 Well Disinfection and Water Analyses - Section 02671 10 HR

130 8-inch Sanitary Sewer Main - Section 02730 100 LF

131 Sewer Main Cleanout - Section 02730 2 EA

132 Manhole and Cover - Section 02731 A. 7-feet deep or less 1 EA B. Greater than 7-feet deep 1 EA

133 Connection to Existing Manhole - Section 02731 1 EA

134 Sewer Service Line - Section 02732 160 LF

135 Sewer Service Connection to Main - Section 02732 1 EA

136 Service Line Two-Way Cleanout - Section 02732 5 EA

137 Septic Tank - Section 02740 A. 1200-gallon 1 EA B. 1500-gallon 3 EA

138 Septic Tank Manhole Riser - Section 02740 10 EA

139 Septic Tank Abandonment - Section 02740 2 EA

140 Septic Tank Pumping - Section 02740 2 EA

141 Solid Sewer Pipe - Section 02740 400 LF

142 Distribution Box/Drop Box - Section 02740 5 EA

143 Drainfield - Section 02740 A. 12-inches Gravel Below Pipe 100 LF B. 24-inches Gravel Below Pipe 100 LF C. 36-inches Gravel Below Pipe 100 LF D. Infiltrator Chamber 1200 LF

144 Inspection Port - Section 02740 10 EA

145 Screened Baffle - Section 02740 4 EA

146 Aerobic Treatment Unit - Section 02740 1 EA

147 Cut-off Drain - Section 02740 100 LF

148 Potholing - Section 02740 12 HR

149 Individual Sewage Lift Station - Section 02747 1 EA

150 PVC Sewer Force Main up to 4-inch - Section 02747 100 LF

151 Residential Wastewater Treatment System - Section 02747 1 LS

152 Submersible Pump - Section 15450 2 EA

153 Booster Pump - Section 15450 2 EA

154 Drop Pipe, Subm. Cable & Sanitary Well Seal - Section 15450 100 LF

155 Pressure Enclosure System - Section 15450 2 EA

156 Water Storage Tank - Section 15450 A 1,000gal 1 EA B. 2,500gal 2 EA C. 5,000gal 1 EA

157 Whole House (FE & Mn) Treatment System - Section 15450 2 EA

158 Whole House Arsenic Treatment System - Section 15450 1 EA (As III & As V)

159 Point-of-Use Arsenic Treatment System - Section 15450 1 EA

160 Yard Hydrant - Section 15450 2 EA

161 Pump Truck Services - Section 15450 8 HR

162 Buried and Above Ground Electrical Cable - Section 16100 A. With #6 Wire 100 LF B. With #8 Wire 200 LF C. With #10 Wire 500 LF D. With #12 Wire 750 LF E. With #14 Wire 300 LF

163 Water Service Connection Fees - Section 02668 EA ** **

164 Sewer Service Connection Fees - Section 02732 EA ** **

165 Permit Fees EA ** **

TOTAL BASE

YEAR:

** Do not bid on connection or permit fees. The cost of these fees will be reimbursed as indicated on each delivery order at the actual cost of the connection or permitting fees.

BID SCHEDULE - OPTION YEAR

ITEM DESCRIPTION

ESTIMATED

QUANTITY UNIT UNIT PRICE TOTAL PRICE

201 Mobilization & Demobilization - Section 02100 A. Mendocino County 2 EA B. Lake County 2 EA C. Sonoma County 2 EA

202 Imported Pipe Embedment - Section 02200 10 CY

203 Imported Structural Fill - Aggregate Subbase - Section 02200 10 CY

204 Imported Structural Fill - Aggregate base - Section 02200 10 CY

205 Rip Rap - Section 02205 12 TON

206 Asphalt Paving - Section 02510 20 SY

207 Monitoring Wells - Section 02520 4 EA

208 Curtain Drain - Section 02620 50 LF

209 PVC Water Main - Section 02667 A. 2-inch 100 LF

210 C900 CL150 PVC Water Main - Section 02667 B. 4-inch 60 LF C. 6-inch 60 LF

211 C900 CL200 PVC Water Main - Section 02667 B. 4-inch 60 LF C. 6-inch 60 LF

212 Flush Hydrant Assembly - Section 02667 A. 2-inch 1 EA B. 4-inch 1 EA C. 6-inch 1 EA

213 Gate Valve and Box - Section 02667 A. 2-inch 1 EA B. 4-inch 1 EA C. 6-inch 1 EA

214 (N) Water Main Connection to (E) Water Main - Section 02667 1 EA

215 Steel Pipe Encasement - Section 02667 20 LF

216 Water Service Line - Section 02668 A. 1-inch 100 LF

B. 11/4-inch 400 LF

217 Water Meter and Box - Section 02668 3 EA

218 Water Service Connection to Water Main - Section 02668 5 EA

219 Water Service Connection to House - Section 02668 A. Without PRV 1 EA B. With PRV 1 EA

220 Curb Stop and Box -Section 02268 A. 1-inch 1 EA B. 1 1/4-inch 1 EA

221 Well Drilling - Section 02671 400 LF

222 Well Casing - Section 02671 A. 0.25" wal Thickness 60 LF B. 0.156" Wall Thickness 60 LF

223 Well Grouting - Section 02671 21 LF

224 Well Development - Section 02671 40 HR

225 Well Screen - Section 02671 4 LF

226 PVC Slotted Casing - Section 02671 3 LF

227 Filter Pack - Section 02671 6 LF

228 Test Pumping - Section 02671 32 HR

229 Well Disinfection and Water Analyses - Section 02671 10 HR

230 8-inch Sanitary Sewer Main - Section 02730 100 LF

231 Sewer Main Cleanout - Section 02730 1 EA

232 Manhole and Cover - Section 02731 A. 7-feet deep or less 1 EA B. Greater than 7-feet deep 1 EA

233 Connection to Existing Manhole - Section 02731 1 EA

234 Sewer Service Line - Section 02732 100 LF

235 Sewer Service Connection to Main - Section 02732 1 EA

236 Service Line Two-Way Cleanout - Section 02732 6 EA

237 Septic Tank - Section 02740 A. 1200-gallon 2 EA B. 1500-gallon 2 EA

238 Septic Tank Manhole Riser - Section 02740 10 EA

239 Septic Tank Abandonment - Section 02740 2 EA

240 Septic Tank Pumping - Section 02740 4 EA

241 Solid Sewer Pipe - Section 02740 400 LF

242 Distribution Box/Drop Box - Section 02740 5 EA

243 Drainfield - Section 02740 A. 12-inches Gravel Below Pipe 100 LF B. 24-inches Gravel Below Pipe 100 LF C. 36-inches Gravel Below Pipe 100 LF D. Infiltrator Chamber 1000 LF

244 Inspection Port - Section 02740 10 EA

245 Screened Baffle - Section 02740 4 EA

246 Aerobic Treatment Unit - Section 02740 1 EA

247 Cut-off Drain - Section 02740 50 LF

248 Potholing - Section 02740 12 HR

249 Individual Sewage Lift Station - Section 02747 1 EA

250 PVC Sewer Force Main up to 4-inch - Section 02747 100 LF

251 Residential Wastewater Treatment System - Section 02747 1 LS

252 Submersible Pump - Section 15450 2 EA

253 Booster Pump - Section 15450 1 EA

254 Drop Pipe, Subm. Cable & Sanitary Well Seal - Section 15450 80 LF

255 Pressure Enclosure System - Section 15450 1 EA

256 Water Storage Tank - Section 15450 A 1,000gal 1 EA B. 2,500gal 1 EA C. 5,000gal 1 EA

257 Whole House (FE & Mn) Treatment System - Section 15450 1 EA

258 Whole House Arsenic Treatment System - Section 15450 1 EA (As III & As V)

259 Point-of-Use Arsenic Treatment System - Section 15450 1 EA

260 Pump Truck Services - Section 15450 8 HR

261 Pump Truck Services - Section 15450 2 EA

262 Buried and Above Ground Electrical Cable - Section 16100 A. With #6 Wire 100 LF B. With #8 Wire 200 LF C. With #10 Wire 300 LF D. With #12 Wire 550 LF E. With #14 Wire 300 LF

263 Water Service Connection Fees - Section 02668 EA ** ** 264 Sewer Service Connection Fees - Section 02732 EA ** ** 265 Permit Fees EA ** **

TOTAL OPTION

YEAR:

TOTAL BID

** Do not bid on connection or permit fees. The cost of these fees will be reimbursed as indicated on each delivery order at the actual cost of the connection or permitting fees.

TOTAL BASE YEAR:

TOTAL OPTION YEAR:

TOTAL BID

1 Prices must be submitted on all individual items of this CLIN schedule. Failure to do so may cause the proposal to be determined "unacceptable."

2 If a modification to a price is submitted which provides for a lump sum adjustment to the total price, the application of the lump sum adjustment to each item in the CLIN schedule must be stated. If it is not stated, the Offeror/Bidder agrees that the lump sum adjustment shall be applied on a pro rata basis to every item in the CLIN schedule.

3 The Offeror/Bidder shall distribute his indirect costs (overhead, profit, bond, etc) over all the items in the CLIN schedule. The Government will review all submitted CLIN schedules for any unbalancing of the items. Any submitted CLIN schedule determined to be unbalanced may cause the proposal to be determined "unacceptable."

4 In the event there is a difference between a unit price and the extended total, the unit price will be held to be the intended proposed price. If the Offeror/Bidder shows only the total price but fails to enter a unit price, the total divided by the estimated quantity will be held to be the intended unit price.

5 Arithmetic Discrepancies. For the purpose of initial evaluation of bids the following will be utilized in resolving arithmetic discrepancies found on the face of the CLIN schedule as submitted by the bidder.

(a) Obviously misplaced decimal points will be corrected;

(b) Discrepancy between unit price and extended price, the unit price will govern;

(c) Apparent errors in extension of unit prices will be corrected;

(d) Apparent errors in addition of lump sum and extended prices will be corrected.

For the purpose of bid evaluation, the Government will proceed on the assumption that the bidder intends the bid to be evaluated on basis of the unit prices, the totals arrived at by resolution of arithmetic discrepanies as provided above and the bid will be so reflected on the abstract of bids.

These correction procedures shall not be used to resolve any ambiguity concerning which bid is low.

6 Dewatering prices will be negotiated on a site specific basis.

7 Water Service Connection Fees and Sewer Service Connection Fees** The cost of these fees will be reimbursed as indicated on each delivery order at the actual cost of the connection or permitting fees.

PRICING SCHEDULE NOTES

SECTION C

SPECIAL PROVISIONS

C.1 SCOPE OF WORK

The work to be done under this contract consists of furnishing all labor, materials, equipment, and supervision necessary to construct individual onsite wastewater disposal systems, individual water and sewer service lines, water meter installations, system connections, water and sewer main line extensions, and other required appurtenances in accordance with the attached drawings and specifications.

C.2 SITE CONDITIONS

Work is to be performed at or near various Indian Residences, Reservations and Rancherias located throughout Mendocino, Lake, and Sonoma Counties, California.

The Contractor shall determine actual site conditions with regard to surface vegetation and other miscellaneous obstacles to construction. The Contractor shall perform, at no additional cost, all necessary clearing, grubbing, and disposal of these and other obstacles in order to do work required by the contract.

Locations, materials, and sizes of any utilities shown on delivery order drawings are approximate only and are not meant to be a complete representation of all utilities actually present. The Contractor shall determine exact locations and details from the responsible utility authority.

See Section I 52.236-02 and 03.

C.3 CONTRACT DOCUMENTS

A maximum of 3 sets of contract drawings and specifications will be furnished without charge to the Contractor at award of this contract, except applicable publications incorporated by reference which will be furnished on request at the cost of reproduction.

C.4 DAYS OF WORK

Normal work days are Monday through Friday with 10 work hours allowed per day.

Construction work shall not be normally permitted on Saturdays, Sundays, or Federal holidays. The Contractor may submit a written request to the Project Engineer for permission to work on any Saturday, Sunday, or Federal holiday or in excess of 10 hours per day. Written approval must be obtained by the Contracting Officer before the Contractor may work on any such day.

C.5 LAWS AND PERMITS AFFECTING WORK

The Contractor shall at all times observe and comply with Federal, State, City, and County laws, Tribal ordinances and regulations which in any manner affect the conduct of the work; and all such orders and decrees as exist at the present and which may be enacted later by legislative bodies or tribunals having legal jurisdiction or authority over the work. All other required permits, certificates and licenses shall be obtained by and at the expense of the Contractor. No pleas of misunderstanding or ignorance thereof will be considered. The Contractor shall be wholly responsible for any claim or liability arising from or based on the violation of any such law, ordinance, regulation, order or decree.

C.6 RIGHTS-OF-WAY

The Government shall obtain from the Tribe, County and/or State rights-of-way and easements necessary to install facilities located specifically by the plans and specifications.

C.7 MAINTENANCE OF UTILITIES AND SITE FACILITIES

The Contractor is responsible to determine the exact location of any and all utilities not specifically located on the plans and to protect them from damage during construction.

Should any utility be damaged or disturbed, the Contractor shall immediately notify the Project Engineer and the owner of the damaged utility. Any and all damage that results from work under the contract shall be promptly repaired at the expense of the Contractor.

During the progress of work, the Contractor shall protect all existing vegetation, structures, sidewalks, streets, mailboxes, ditches, culverts, signposts, fences, driveways, and similar items. If the Contractor must remove or disturb these facilities, provision shall be made to maintain a temporary facility serving the same purpose as that which it was intended to replace. Destruction of vegetation shall be kept to a minimum. Upon completion of the work, the Contractor shall restore all such facilities to a condition at least equal to that existing prior to construction. The Contractor shall not obstruct access to the site.

The Contractor shall perform his work at all times in a manner to ensure minimal obstruction to traffic and minimal inconvenience to the general public.

C.8 CONTRACT SUBMITTAL REQUIREMENTS

The Contractor shall furnish material submittals, design submittals, shop drawings, test reports, and as-built drawings in accordance with the requirements detailed in the Contract Submittal Requirements section.

C.9 CLEANUP AND FINISH GRADING

The Contractor shall restore all areas disturbed by construction to a condition at least equal to that existing prior to construction. Excess construction materials, equipment, tools, waste excavation, and rubbish shall be removed. Excavated areas shall be finish graded to provide drainage as required by the drawings and specifications, or in the absence of specific requirements, to provide drainage away from the facilities constructed and to provide drainage away from excavated areas and installed facilities. Where a lawn is disturbed, the Contractor shall place a generous amount of grass seed to the disturbed area following final grading.

See Section I 52.236-12

C.10 MEASUREMENT AND PAYMENT

As line item quantities are estimates, contractor will be paid full compensation based on the actual quantities utilized/completed verified by the Engineer. The price paid for the completed item of work shall include full compensation for furnishing all labor, materials, tools, equipment, and performing all work required by the provisions of the contract to furnish and install the items of work, completed in place. In all cases, the finished product shall be a complete, operational system or component. The price for the completed item of work shall also include all applicable state and local sales or other taxes.

Technical Provisions - Index

Section Number Title

02100 Mobilization & Demobilization

02110 Site Clearing

02200 Excavating, Trenching & Backfilling

02205 Rip Rap

02310 Grading

02370 Erosion & Sediment Control

02510 Asphalt Concrete Pavement

02516 Disinfection of Water Distribution

02520 Monitoring Wells for OSDS

02620 Curtain Drain

02667 Water Mains

02668 Water Service Lines

02671 Individual Water Wells

02730 Sewer Mains

02731 Manholes and Covers

02732 Sewer Service Lines

02740 Septic Tank Drainfield System

02747 Residential Wastewater Treatment Sytem

02920 Topsoil, Seeding, Fertilizing, Mulching

03300 Cast-in-Place Concrete

04101 Masonry Grout

15450 Individual Water System

16100 Individual Electrical Requirements

Revised 03/03/2015

Page. 1 of 2 02100 – Mobilization & Demobilization

SECTION 02100

MOBILIZATION & DE-MOBILIZATION

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Mobilization and De-mobilization

1.2 UNIT PRICE - MEASUREMENT AND PAYMENT

A. Mobilization and De-mobilization - Shall be paid at the lump sum bid price for delivery orders that meet the criteria contained herein. Includes the costs for a one-time mobilization of all materials, equipment, and laborers to and from the job site location regardless of the time required to complete the work. Compensation covers the efforts necessary to arrange access to and from the job site location(s). Mobilization and Demobilization applies to delivery orders that contain only one homesite or delivery orders that meet both of the following conditions: 1) contain multiple sites, and 2) at least one of the homesites is located 20 miles away from every other homesite on that delivery order. Mobilization and Demobilization shall not exceed ten percent (10%) of the total cost for the delivery order.

1.2 RELATED SECTIONS

A. Special Provisions

PART 2 PRODUCTS

Not Used.

PART 3 EXECUTION

3.1 PREPARATION

A. Make arrangements to contact all public works departments and Tribal Business Center prior to mobilizing on job site location, coordinating a materials and equipment yard, and securing all necessary permits prior to performing work.

B. Notify Government 48 hours in advance prior to mobilization to job site location.

3.2 MOBILIZATION

A. Move materials, equipment, and laborers as necessary to job site location with minimal disturbance.

3.3 DE-MOBILIZATION

A. Remove all materials, equipment, laborers, solid waste and debris created by construction activities from job site location.

B. Maintain minimal disturbance to site upon departure.

Page. 2 of 2 02100 – Mobilization & Demobilization

END OF DOCUMENT

Page 1 of 2 02110 – Site Clearing

SECTION 02110

SITE CLEARING

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Protection of facilities.

2. Clearing site of incidental paving and curbs, surface debris, grass, trees, and other plants.

3. Preparation of site for excavation.

B. Related Sections:

1. Section 02200 – Excavation, Trenching, and Backfilling.

2. Section 02370 – Erosion and Sedimentation Control.

1.2 UNIT PRICE - MEASUREMENT AND PAYMENT

A. There is no separate payment for work under this Section. Combine work required with pay items defined within measurement and payment portion of other related Sections.

1.3 REFERENCES

A. Applicable references in related Sections.

1.4 SUBMITTALS

A. Submittals as applicable in related Sections.

1.5 QUALITY ASSURANCE

A. Perform Work in accordance with applicable Tribal, Federal, Mendocino DOT County, or State of California standards.

1.6 QUALIFICATIONS

A. None.

1.7 DELIVERY, STORAGE AND HANDLING

A. None.

Page 2 of 2 02110 – Site Clearing

PART 2 PRODUCTS

2.1 SITE CLEARING

A. None.

PART 3 EXECUTION

3.1 PROTECTION

A. Locate, identify, and protect existing facilities (remaining) from damage.

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

C. Protect benchmarks from damage or displacement.

3.2 CLEARING

A. Clear only those areas required for access to site and execution of work.

B. Remove paving, curbs, and other structures or debris per drawings.

3.3 REMOVAL

A. Remove paving, brush, trees, and other debris and dispose of off-site.

B. Coordinate with Tribe for disposal method and location.

3.4 TOPSOIL EXCAVATION

A. Excavate topsoil from areas to be further excavated or re-graded.

B. Stockpile topsoil in designated area.

1. Protect from erosion.

2. Remove excess topsoil from site.

END OF SECTION

Revised 3/3/2015

Page 1 of 14 02200 – Excavating, Trenching, and Backfilling

SECTION 02200

EXCAVATION, TRENCHING, AND BACKFILLING

A. Section Includes:

1. Regulatory requirements.

2. Protection.

3. Subsoil fill for pipe embedment.

4. Structural fill for aggregate subbase and base.

5. Excavation.

6. Backfilling.

7. Trench Dams

8. Compaction.

9. Restoration.

B. Related Sections:

1. Section 02110 – Site Clearing.

2. Section 02510 – Asphalt Paving

3. Section 02082 –Manholes and structures

4. Section 02667 - Water Mains

5. Section 02668 - Water Service Lines

6. Section 02730 – Sewer Mains

7. Section 02731 – Manholes

8. Section 02732 – Sewer Service Lines

9. Section 02740 – Septic Tank Drainfield Systems

10. Section 03300 – Cast-in-place Concrete.

1.2 UNIT PRICE - MEASUREMENT AND PAYMENT

A. There is no separate payment for work under this Section. Combine work required with pay items defined within measurement and payment portion of other related Sections.

B. Compacting of subsoil and structural fill material listed below is under pay items defined within other related Sections.

C. Subsoil Fill, Pipe Embedment Zone:

1. Basis of Measurement: By cubic yard.

2. Basis of Payment: Includes all costs of furnishing fill material, hauling, stockpiling, sub-grade preparation, and placing where required.

D. Structural Fill, Aggregate Subbase:

1. Basis of Measurement: By cubic yard.

Page 2 of 14 02200 – Excavating, Trenching, and Backfilling

2. Basis of Payment: Includes all costs of furnishing material, hauling, stockpiling, sub-grade preparation, and placing where required.

E. Structural Fill, Aggregate Base:

1. Basis of Measurement: By cubic yard.

2. Basis of Payment: Includes all costs of furnishing material, hauling, stockpiling, sub-grade preparation, and placing where required.

1.3 REFERENCES

A. American Association of State Highway and Transportation Officials:

1. AASHTO T27 - Standard Method of Test for Sieve Analysis of Fine and Coarse

Aggregates (ASTM Designation: C136).

2. AASHTO M147 - Standard Specification for Materials for Aggregate and Soil-

Aggregate Subbase, Base and Surface Courses.

3. AASHTO T180 - Standard Specification for Moisture-Density Relations of Soils

Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop (ASTM Designation: D1557).

B. ASTM International:

A. ASTM D698 - Test Methods for Moisture-Density Relations of Soils and Soil-Aggregate Mixtures, Using 5.5 lb (2.5 Kg) Rammer and 12 inch (300 mm) Drop.

B. ASTM D1556 - Test Method for Density of Soil in Place by the Sand-Cone Method.

C. ASTM D1557 - Test Methods for Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 10 lb (4.5 Kg) Rammer and 18 inch (450 mm) Drop.

D. ASTM D2922 - Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth).

E. ASTM D3017 - Test Methods for Moisture Content of Soil and Soil-Aggregate Mixtures.

F. ASTM C136 - Method for Sieve Analysis of Fine and Coarse Aggregates.

G. ASTM D2321 - Recommended Practice for Underground Installation of Flexible

Thermoplastic Sewer Pipe.

C. U.S. Department of Transportation, Federal Highway Administration:

1. Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-03) with modifications by the Bureau of Indian Affairs (BIA), Pacific Regional Office, Division of Transportation.

D. State of California, Department of Transportation:

1. Standard Specifications, 2010 or latest edition.

Page 3 of 14 02200 – Excavating, Trenching, and Backfilling

1.4 DEFINITIONS

A. Utility: Any buried pipe, duct, conduit, or cable.

B. Structure: Foundation, manhole, septic tank, cleanout, catch basin, or culvert.

C. Bedding: Material placed directly underneath the pipe and brings the trench bottom to grade and provides a firm, stable, and uniform support of the pipe.

D. Haunching: Material placed at the bottom of the pipe to the springline and provides a firm and stable embedment to limit pipe deflections.

E. Initial Backfill: Material placed above the springline of the pipe to a level 6 inches above the top of the pipe or in accordance with the Drawings.

F. Final Backfill: Material placed above the initial backfill to a level below that required for the trench area restoration.

G. Solid Rock: Large continuous masses of igneous, metamorphic, or sedimentary rock, which in the opinion of the Engineer cannot be excavated without drilling and blasting or other mechanical means. Soil that is capable of being excavated with rippers is not considered solid rock.

H. Loose Rock: Boulders and other detached stones with a minimum volume of 1 cubic yard.

1.5 SUBMITTALS

A. Contract Submittal Requirements and Submittal Review Form

B. Excavation Protection Plan: Describe sheeting, shoring, and bracing materials and installation required to protect excavations and adjacent structures and property; include calculations to support plan.

C. Trenching Plan: Indicate proposed plan of trenching excavation and delay pattern.

D. Product Data: Submit data for geotextile fabric indicating fabric and construction.

E. Samples: For on-site production, submit, in air-tight containers, 10 lb sample of each type of fill to testing laboratory.

F. Materials Source: Submit name of imported fill materials suppliers.

G. Manufacturer's Certificate: Certify Subsoil Fill and Structural Fill meet or exceed specified requirements.

H. Compaction Certificate: Certify compaction methods meet or exceed specified requirements.

Page 4 of 14 02200 – Excavating, Trenching, and Backfilling

1.6 QUALITY ASSURANCE

A. Perform Work in accordance with applicable Tribal, Federal, State of California or Mendocino County standards.

B. Tribe and Engineer to obtain encroachment permit from roads authority prior to construction.

C. Maintain one copy of all applicable permits on site.

1.7 QUALIFICATIONS

A. Prepare excavation protection plan under direct supervision of Professional Engineer experienced in design of this Work and licensed in State of California.

1.8 FIELD MEASUREMENTS

A. Verify field measurements prior to fabrication.

B. Verify survey benchmarks, control points, and intended elevations are as shown on drawings.

1.9 COORDINATION

A. Section 01300 - Administrative Requirements: Coordination and project conditions.

B. Verify Work associated with lower elevation utilities is complete before placing higher elevation utilities.

PART 2 PRODUCTS

2.1 FILL MATERIALS

A. PIPE EMBEDMENT

1. Outside of County Roads ROW: Use crushed stone or gravel that is free of shale, clay, friable material and debris. Material shall have a minimum sand equivalent value of 20. Grade in accordance with ASTM C136, within the following limits:

Sieve Size Pipe Bedding (% passing) Trench Backfill (% passing) 3” 100 3/4” 100 90 - 100 3/8” 80 – 100 Number 4 10 – 50 35 – 100 Number 16 5 – 30 Number 30 20 – 100 Number 200 0 – 4

Page 5 of 14 02200 – Excavating, Trenching, and Backfilling

2. Within County Roads ROW: Comply with the requirements of the encroachment permit specifications.

B. IMPORTED STRUCTURAL FILL

1. Outside of County Roads ROW: Use imported soil (if required) that has angular fragments and a low expansion index (less than 30 per ASTM D 4829). Use imported fill that complies with the gradation and sand equivalent requirements of Caltrans Class II Aggregate Subbase.

2. Within County Roads ROW: Comply with the requirements of the encroachment permit specifications.

C. DRAINAGE ROCK

1. For drainage of facilities and roads.

2. Local borrow.

3. Graded with the following gradation:

Sieve Size Passing 2” 100% 3/4” 35% - 70% Number 4 0% – 5%

D. Subsoil Fill:

1. For pipe bedding, haunching, and initial backfill (pipe embedment zone).

2. Imported borrow or local borrow.

3. Free of clay or organic material.

4. Graded with the following gradation:

Sieve Size Percent Passing by Weight

1-inch 100

3/4-inch 90 – 100

No. 4 50 – 95

No. 30 25 – 45

No. 200 3 – 15

E. Structural Fill – Aggregate Subbase (AS):

1. For road zone below aggregate base.

2. Imported or local borrow.

3. Conforming to Caltrans Aggregate Subbase (AS) Class 2; State of California, Department of Transportation, Standard Specifications, Section 25.

4. Graded with the following gradation (Operating Range):

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Sieve Size Percent Passing by Weight

3-inch 100

2 1/2-inch 90 – 100

No. 4 40 – 90

No. 200 0 – 25

F. Structural Fill – Aggregate Base (AB):

1. For road zone, below pavement, and other structures.

2. Imported or local borrow.

3. Hard, durable particles or fragments of crushed stone or gravel. Free from vegetable matter or other deleterious substances, and readily compacted under watering and rolling to a firm, stable base.

4. Conforming to Federal Highway Administration, FP-03, Section 301 (as modified by the BIA, allowable deviation range within Caltrans Aggregate Base (AB) Class 2; State of California, Department of Transportation, Standard Specifications, Section 26).

5. Graded with the following gradation (3/4-inch Maximum Operating Range):

Sieve Size Percent Passing by Weight

1-inch 100

3/4-inch 87 – 100

No. 4 30 – 60

No. 40 5 – 35

No. 200 0 – 12

G. All other trench zone material shall consist of native material meeting the following requirements:

1. Free of organic or deleterious material; less than 5% by volume.

2. Less than 3-inches in maximum dimension.

H. Cement Slurry Fill:

1. Fluid, workable mixture of aggregate, cement, and water that will flow without segregation of the aggregate while being placed.

2. Water shall be free from oil, salts, and other impurities which would have an adverse effect.

3. Not less than 188 lbs. of cement shall be used for each cubic yard of material produced.

4. Aggregate shall be graded with the following gradation:

Sieve Size Percent Passing by Weight

1 1/2-inch 100

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1-inch 80 – 100

3/4-inch 60 – 100

3/8-inch 50 – 100

No. 4 40 – 80

No. 100 10– 40

5. Within County Roads ROW: Comply with the requirements of the encroachment permit specifications.

2.2 TRENCH DAMS

A. Trench dams shall be constructed on all utility main lines where grades exceed ten percent (10%) or where indicated on the construction drawings.

B. All trench dams shall be constructed in accordance with construction drawings.

C. Construct Trench dams on sewer gravity mains as per Standard Detail.

D. Trench dam spacing shall be every ten (10) feet vertical distance.

E. Relief drains shall be installed on all trench dams to an acceptable watercourse or storm sewer system.

2.3 ACCESSORIES

A. Geotextile Fabric: Non-biodegradable.

1. Used in conjunction with subsoil fill as an underlayment for pipe in roads.

2. TC Mirafi; Model 500X.

3. Substitutions: Permitted.

PART 3 EXECUTION

3.1 PREPARATION

A. Notify Underground Service Alert (800) 227-2600 in Northern and Central California not less than three working days before performing Work.

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

2. Comply with their notice requirements.

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

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

D. Protect benchmarks, existing structures, fences, paving, and curbs from excavating equipment and vehicular traffic.

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E. Maintain and protect above and below grade utilities indicated to remain.

F. Establish temporary traffic control and detours when trenching is performed in public right-of-way. Relocate controls and reroute traffic as required during progress of Work.

3.2 EXCAVATION

A. Use open cut method on all excavation unless otherwise shown on the drawings, required by permit, or approved in writing by the Project Engineer.

B. Stockpile excavated material in designated area on site, and remove excess material from site.

C. Grade top perimeter of excavation to prevent surface water from entering.

3.3 CLASSIFICATION OF EXCAVATION TRENCHING

A. All excavation with equipment commonly used in the industry is classified as common excavation (except for drilling and blasting).

B. All material drilled and blasted for removal is classified as rock excavation. Inform the Project Engineer prior to rock excavation to determine pay measurement.

3.4 EXCAVATION TRENCHING

A. Excavate subsoil required for utilities. Use open cut method on all excavation unless otherwise shown on the drawings, required by permit, or approved in writing by Engineer.

B. Stockpile excavated material in designated area on site and remove excess material from site. Grade top perimeter of excavation to prevent surface water from entering.

Excavation trenches to depth indicated on drawings.

C. Provide uniform and continuous bearing and support for bedding material and pipe. Cut trenches sufficiently wide to enable installation and inspection.

D. Remove water or materials that interfere with work.

E. Maintain trench sides as vertical as possible.

F. Excavate bottom of trenches maximum 24 inches wider than the outside diameter of the pipe.

G. Center trench excavation on pipe alignment for a minimum clearance of 6 inches on each side of the pipe.

H. Excavate trench width above the pipe as wide as necessary for shoring, sheeting, and installation.

I. Hand trim for bell and spigot pipe joints. Remove loose matter.

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J. Restore over-excavated areas. If the trench bottom is over-excavated below the intended grade, fill over-excavation with imported pipe embedment and compact to density equivalent to the in situ material.

K. Remove lumped subsoil, boulders, and rock up to ½ yd3 measured by volume. Excavate for additional trench depth when soil prevents adequate pipe support. Refill addition with imported pipe embedment. Remove large rock, boulders, and large stones to provide 3 inches of soil cushion on all sides of the pipe and pipe accessories.

L. Length of trench that may be left open at any one time is 100 yards. Do not leave trench open overnight. Stockpile excavated material in designated area on site, and remove excess material from site.

3.5 STRUCTURE EXCAVATION

A. Excavate for structures down to the levels indicated on the drawings. Excavate as large as necessary to accommodate the work forms. Comply with all safety regulations.

B. Excavate a sufficient distance from walls and footings to provide forming except where concrete for walls or footings is directly against excavated surfaces.

C. Do not excavate below depths indicated in drawings. Restore over-excavated areas to proper elevation by filling with imported structural fill. Do not interfere with 45 degree bearing splay of foundations.

D. Hand-trim bottom of the excavation to prevent disturbing soil below the required depth.

3.6 BACKFILLING

A. Backfill trenches to contours and elevations with unfrozen fill materials.

B. Systematically backfill to allow maximum time for natural settlement. Do not backfill over porous, wet, frozen, or spongy sub-grade surfaces.

C. Place geotextile fabric in areas indicated on the Drawings prior to placing subsequent fill materials.

D. Place fill material in continuous layers and compact in accordance with schedule at end of this section.

E. Employ placement method that does not disturb or damage utilities in trench.

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

G. Do not leave more than 50 feet of trench open at end of working day.

H. Protect open trench to prevent danger to the public.

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3.7 TRENCH BACKFILLING

A. Use excavated soil as embedment unless Engineer determines it unsuitable. Unsuitable material is defined as incapable of being compacted to specified density with optimum moisture content, solid or loose rock, and material not suitable for pipe embedment zone as specified above.

B. Place a 6-inch layer of embedment over the top of the pipe unless otherwise identified in Drawings or specified by Engineer.

C. Use excavated soil as final backfill unless Engineer determines it unsuitable. Unsuitable final backfill material is solid or loose rock larger than 3 inches. Do not use organic matter or debris.

D. Backfill pipe embedment material in uniform layers on all sides of the pipe in lifts not to exceed 6 inches.

E. Place final backfill material, unless otherwise required by permits or authority, by the following methods:

F. Temporary backfilling shall be placed to the measurement specified for unimproved surfaces unless otherwise specified by Engineer.

3.8 STRUCTURE BACKFILLING

A. Subgrade to receive aggregate base, immediately prior to spreading, shall conform to the compaction and elevation tolerances specified and shall be free of loose or extraneous material.

B. Place structure fill material in uniform layers on all sides of the structure 6 inches thick.

C. Do not fill structure material until the structure footing or other portions of the structure have been inspected by Engineer.

D. Use excavated soil as final backfill material unless Engineer determines it unsuitable.

Unsuitable final backfill material is solid or loose rock larger than 3 inches. Do not use organic matter or debris.

Location Not To Exceed (in loose measure)

Roadways 6-inches thick

Rights-of-way and outside roadway

12-inches thick

Unimproved surfaces 24-inches thick

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3.9 CEMENT SLURRY BACKFILLING

A. Maintain a minimum of 6 inches clear distance between the outside of pipe and the side of the excavation for pipes 42-inches in diameter and smaller.

B. Compacted earth plugs or other suitable system shall be placed as the ends of the trench to receive slurry backfill to completely contain the slurry in the trench.

C. Place cement within 1 hour after mixing.

D. Place in a uniform manner that will prevent voids in, or segregation of, the backfill, and will not float or shift the pipe.

E. Backfilling over or placing any material over the slurry cement backfill shall not commence until 4 hours after the slurry has been placed, except that when concrete sand is used for the aggregate and the in-place material is free draining, back filling may commence as soon as the surface water is gone.

F. Cement slurry backfill shall not be used where it will be in contact with aluminum and aluminum coated materials.

3.10 COMPACTION

A. Compact to the percentage of maximum density determined by ASTM D1557 as specified below unless otherwise required by permit or authority.

Location Bedding Haunching Initial

Backfill Final

Backfill Roadways, improved surfaces 95% 95% 95% 95% Roadway 90% 90% 90% 90% rights-of-way outside of roadway prism Unimproved 90% 90% 80% 80% Surfaces, fields Around structures 95% 95% 95% 95%

B. Temporary backfilling shall be compacted to the percentage specified for unimproved surfaces unless otherwise specified by the Engineer.

3.11 TEMPORARY BACKFILLING

A. Use excavated soil as backfill unless Engineer determines it unsuitable. Unsuitable backfill material is solid or loose rock larger than 6 inches. Do not use organic matter or debris.

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B. Backfill in uniform layers in lifts not to exceed 12 inches.

C. Compact to required density or as specified by Engineer.

D. Place cold asphalt mix patch in road areas or as specified by Engineer.

3.12 LINES AND GRADES

A. Lay pipes to lines and grades indicated on Drawings.

B. Engineer reserves right to make changes in lines, grades, and depths of utilities when changes are required for Project conditions.

C. Use laser-beam instrument with qualified operator to establish lines and grades.

3.13 SEPARATION OF WATER AND SEWER PIPE

A. Horizontal: Water and sewer pipe shall be separated by at least 10 feet, measured inside edge to edge. In cases where this separation is unattainable, water and sewer pipe may be closer if the water pipe is vertically above the sewer pipe by at least 18-inches and located in a separate trench or on an undisturbed earth shelf.

B. Crossings: In all cases where water and sewer pipe cross, one full length of the new pipe (minimum 20-foot section) shall be centered on the crossing.

C. Vertical: Water pipe crossing sewer pipe shall be laid at least 18-inches above the top of the sewer pipe, measured pipe to pipe. If water crossing above sewer is unattainable, the minimum vertical separation shall be 18-inches and if the sewer pipe has non-resilient joints, lengths between joints less than 10 feet or shows evidence of damage or leakage the sewer pipe shall be replaced with one full length of PVC or ductile sewer pipe with resilient joints sized to exactly match the existing pipe diameter.

D. Service Line Separation: Water and sewer service pipes shall meet the horizontal separation requirements listed above, except where water and sewer services unavoidably must enter the building with less than 10 foot separation, the services shall diverge to achieve the required separation within 10 feet of the building wall. Water and sewer services crossing other service or pipe shall meet the vertical separation requirements listed above, except PVC water pressure pipe (minimum 10-foot length) shall be used as encasement for sewer services crossing above water pipelines. Sewer services may also be laid between 18-inches and 12-inches below water mains or services if the sewer service is similarly encased.

3.14 SHEETING AND SHORING

A. Sheet, shore, and brace excavations to prevent danger to persons, structures, and adjacent properties and to prevent caving, erosion, and loss of surrounding subsoil.

B. Support trenches more than 5 feet deep excavated through unstable, loose, or soft material. Provide sheeting, shoring, bracing, or other protection to maintain stability of excavation.

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C. Design sheeting and shoring to be removed at completion of excavation work.

D. Repair damage caused by failure of the sheeting, shoring, or bracing and for settlement of filled excavations or adjacent soil.

E. Repair damage to new and existing Work from settlement, water or earth pressure or other causes resulting from inadequate sheeting, shoring, or bracing.

3.15 TOLERANCES

A. Top Surface of Backfilling under Paved Areas: Plus or minus 1 inch from required elevations.

B. Top Surface of General Backfilling: Plus or minus 1 inch from required elevations.

3.16 FIELD QUALITY CONTROL

A. Perform testing in accordance with the following:

1. In-Place Compaction Testing: For all trenching and excavation in roadways, roadway rights-of-ways, and around structures.

2. Visual Inspection: For all trenching and excavation in unimproved surfaces and fields unless otherwise directed by Engineer.

3. Additional Testing: Additional testing, at the discretion of the Engineer, may be performed at locations approved by Engineer.

B. Perform laboratory material tests in accordance with ASTM D1557. Prior to construction of work, perform the following:

1. Perform tests on 10 soil samples.

2. Locations approved by Engineer.

3. Submit test results to Engineer.

C. Roadway Locations: Perform minimum sampling and testing for quality control in accordance with the following:

1. Roadways.

2. At least 75 percent of all covered areas shall equal or exceed the required thickness and no area shall vary by more than ¼ inches.

3. Minimum Sampling and Testing for Quality Control:

Material Characteristic Point of

Sampling Test Methods

Sampling Frequency

Aggregate Base/Subbase/ Embedment

Gradation Roadway

AASHTO

T27/ASTM

C136

5 per day

In-place density

Anywhere on roadway

AASHTO

T180/ASTM

D1557

1/300 ft per lift

Thickness test hole

Anywhere on roadway

1/300 ft

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D. Other Locations: Perform in-place compaction tests in accordance with the following:

1. Density Tests (in-place): ASTM D1556 (sand cone method) or ASTM D2922

(nuclear method).

2. Moisture Tests (in-place): ASTM D3017 (nuclear method).

3. Minimum Sampling and Testing Quality Control:

a. Pipe Trench: Average of one test per 1,000 feet at depth and location approved by Engineer. Minimum one acceptance test per project for aggregate base and aggregate subbase.

b. Other Areas (such as trenchless construction pit): Average of one test per 400 square feet, with a minimum of one test for each area, at depth and location approved by Engineer.

4. Coordinate required test methods with geotechnical report.

E. When tests indicate Work does not meet specified requirements, perform additional work as may be necessary to attain the specified condition, which could include remove, replace, and compact. Retest Work.

F. All testing performed by a firm regularly engaged in soil testing and licensed and bonded in the State of California.

3.17 PROTECTION OF FINISHED WORK

A. If vehicular traffic has altered finished work, reshape and re-compact fills.

3.18 SIDEWALK, CURB, AND GUTTER RESTORATION

A. Restore the sidewalks, curbs, and gutters to their original condition. Comply with the standards and construction requirements of the local authority.

B. Machine compact backfill under the sidewalk as follows:

1. Cut the existing curb or sidewalk to a neat line.

2. Match the depth of base course material with that present under adjacent curbs or sidewalks.

3. Match to the existing concrete walk in width, thickness, slope, and finish, but not less than 4 inches in thickness.

4. Use wire mesh reinforcement; 6 inch by 6 inch.

Revised 7/29/15 02205 – Rip Rap p. 1 of 7

SECTION 02205

RIP RAP

1.1 SECTION INCLUDES

A. Rip Rap

1.2 UNIT PRICE - MEASUREMENT AND PAYMENT

A. Rip Rap:

1. Basis of Measurement: By the ton.

2. Basis of Payment: Includes all costs of furnishing rip-rap material; hauling;

clearing area in preparation for rip rap placement; sub-grade excavation, preparation and placement of 6” of aggregate base; compaction of sub-grade to 95%; rip rap placement; disposal and spreading of excess fill and site cleanup.

1.3 RELATED SECTIONS

A. Section 02100 - Mobilization and Demobilization

B. Section 02110 - Site Clearing

C. Section 02200 - Excavating, Trenching and Backfilling

D. Section 02310 – Grading

E. Section 02370 - Erosion & Sediment Control

1.4 SUBMITTALS

A. Contract Submittal Requirements and Submittal Review Form

B. Materials Source: Submit name of rip rap supplier

C. Rip Rap gradation sheets

D. Photographs of Rip Rap

E. Rip Rap to meet or exceed specified requirements

F. Compaction Testing of Sub-grade

1.5 REFERENCES

Revised 7/29/15 02205 – Rip Rap p. 2 of 7

A. ASTM C136 - Test Method for Sieve Analysis of Fine and Coarse Aggregates

B. ASTM C535 - Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

C. ASTM D698 - Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12 400 ft-lbf/ft3 (600 kN-m/m3)

D. ASTM D1556 - Test Method for Density and Unit Weight of Soil in Place by the Sand-Cone Method

E. ASTM D1557 - Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3))

F. ASTM D2216 - Test Method for Laboratory Determination of Water Content of Soil, Rock and Soil-Aggregate Mixtures

G. ASTM D2487 - Classification of Soils for Engineering Purposes [Unified Soil Classification System]

H. ASTM D4829 - Standard Test Method for Expansion Index of Soils

I. ASTM D6825 - Standard Guide for Placement of Riprap Revetments

J. ASTM D6938 - Standard Test Method for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)

K. OSHA 29 CFR, Part 1926 - Occupational Safety and Health Standards for the Construction Industry

L. Standard Specifications, State of California, Department of Transportation, 2010 Edition

M. AASHTO No.T27 Sieve Analysis of Fine and Coarse Aggregates

N. California Test 216 - Method of Test for Relative Compaction of Untreated and Treated Soils and Aggregates

O. California Department of Transportation Standard Specifications (2006 Edition), Section 72.

1.6 REGULATORY REQUIREMENTS

A. Any additional excavation, trenching, and backfilling requirements set forth by a construction and/or encroachment permit issued to the contractor by state, county, or tribal entity have precedence over any references herein made by the Owner.

B. In accordance with the requirements of Section 6705 of the Labor Code of the State of California, submit a detailed plan to the Project Engineer before excavation, showing the design of shoring, bracing, sloping, or other provisions to be made for worker protection from the hazard of caving ground during the excavation of any trench or…