Project # C03410

SONOMA COUNTY  
DEPARTMENT OF TRANSPORTATION AND PUBLIC WORKS 
SANTA ROSA, CALIFORNIA

June 20, 2007

NOTICE TO PLAN HOLDERS
FOR CONSTRUCTION OF

RIVER ROAD
(COUNTY ROAD NO. 8802B)

CHANNELIZATION AND RIVER ACCESS PROJECT
SUNSET BEACH
FROM P.M. 14.61 TO P.M. 14.88
NET LENGTH 0.27 MILE

COUNTY PROJECT NO. C03410

ADDENDUM NO. 2

I.      Changes and Clarifications to the Contract Plans:

A.  The note under the Pipe Gate Detail on Sheet 14 applies to all three pipe gates and is changed to read as follows:

Notes:   All connection points shall be welded all around with 3/16" fillet weld unless otherwise specified.  Provide 3" O.D. steel gate stop post with ½" dia. eye or "U."  Paint gate and gate posts with Benjamin Moore Sun Yellow (color code C133 12), Impervo Alkyd gloss metal and wood enamel or approved equal. 

B.  On Sheet 10, Ditch Lining Details, the rock slope protection designated "34+59 Rt – Facing" is corrected to read "34+59 Rt – Backing."

C.  On Sheet 9, the note "Top of retaining wall to be built to match the longitudinal grade of River Road" has been added to Section B-B.

Revised Plan Sheets 9, 10 and 14 will NOT be issued with Addendum No. 2.
       Quantities for Rock Slope Protection are shown correctly on the Engineer's Estimate.

 II.    Changes and Additions to the Contract Specifications:

A.  The following paragraph is added to the Information Sheet, Page i:

"Bidder's attention is directed to Section 10-1.22G, 'Place Asphalt Concrete (Miscellaneous Areas).'  Note that the price paid for square yards includes asphalt concrete as materials for doing the work."

C.  The following paragraph is added to Section 10-1.01 Order of Work:  

"No asphalt concrete pavement removal will be allowed on River Road until slope embankments have been constructed."  

D.  Section 10-1.05, "Hours of Work," is revised to include "No work will be allowed on the road right of way on August 4^th, 2007."  

E.  The following paragraph is added to Section 10-1.18E, "Imported Borrow":  

"Slide material located on River Road at Hilton may be made available for use as imported borrow."  

F.  The following paragraph is added to Section 10-1.18E, "Imported Borrow":   

"The estimated quantity of Imported Borrow is approximate only.  The County does not, expressly or by implication, agree that the actual amount of work will correspond therewith, and reserves the right to increase or decrease the amount thereof as may be deemed necessary or advisable by the Engineer."  

G. The following paragraph is added to Section 10-1.18F, "Local Borrow":   

"The estimated quantity of Local Borrow is approximate only.  The County does not, expressly or by implication, agree that the actual amount of work will correspond therewith, and reserves the right to increase or decrease the amount thereof as may be deemed necessary or advisable by the Engineer.

H.  The following new Section 10-1.18H, "Roadway Excavation (Hazardous Material)," is added to the Contract Specifications:

10-1.18H ROADWAY EXCAVATION (HAZARDOUS MATERIAL):  Earthwork involving material containing aerially deposited lead and petroleum hydrocarbons shall conform to the provisions in Section 19, "Earthwork," of the Standard Specifications and these special provisions.

Attention is directed to "Aerially Deposited Lead" of these special provisions.

Material containing aerially deposited lead in average concentrations (using the 95 percent Upper Confidence Limit) greater than 5.0 mg/L soluble lead, as tested using the Toxicity Characteristic Leaching Procedure Test is Federally regulated hazardous waste and shall be transported to and disposed of at a Class I Disposal Site.  Material excavated from these areas shall be transported by a hazardous waste transporter registered with the DTSC using the required procedures for creating a manifest for the material.  The vehicles used to transport the hazardous material shall conform to the current certifications of compliance of the DTSC.

LEAD COMPLIANCE PLAN

The Contractor shall prepare a project specific Lead Compliance Plan to prevent or minimize worker exposure to lead while handling material containing aerially deposited lead.  Attention is directed to Title 8, California Code of Regulations, Section 1532.1, "Lead," for specific California Department of Industrial Relations, Division of Occupational Safety and Health (Cal-OSHA) requirements when working with lead.

The Lead Compliance Plan shall contain the elements listed in Title 8, California Code of Regulations, Section 1532.1(e)(2)(B).  Before submission to the Engineer, the Lead Compliance Plan shall be approved by an Industrial Hygienist certified in Comprehensive Practice by the American Board of Industrial Hygiene.  The plan shall be submitted to the Engineer for review and acceptance at least 2 days prior to beginning work in areas containing aerially deposited lead.

The Lead Compliance Plan shall include perimeter air monitoring incorporating upwind and downwind locations as shown on the plans or as approved by the Engineer.  Monitoring shall be by personal air samplers using National Institute of Safety and Health Method 7082.  Sampling shall achieve a detection limit of 0.05 μg/m³ of air per day.  Daily monitoring shall take place while the Contractor clears and grubs and performs earthwork operations.  A single representative daily sample shall be analyzed for lead.  Results shall be analyzed and provided to the Engineer within 24 hours.  Average lead concentrations shall not exceed 1.5 μg/m³ of air per day.  If concentrations exceed this level the Contractor shall stop work and modify the work to prevent release of lead.  Monitoring shall be done under the direction of, and the data shall be reviewed by and signed by a Certified Industrial Hygienist.

The Contractor shall not work in areas containing aerially deposited lead within the project limits, unless authorized in writing by the Engineer, until the Engineer has accepted the Lead Compliance Plan.

Prior to performing work in areas containing aerially deposited lead, personnel who have no prior training or are not current in their training status, including Department personnel, shall complete a safety training program provided by the Contractor.  The safety training program shall meet the requirements of Title 8, California Code of Regulations, Section 1532.1, "Lead."

Personal protective equipment, training, and washing facilities required by the Contractor's Lead Compliance Plan shall be supplied to Department personnel by the Contractor.  The number of Department personnel will be one.

The Engineer will notify the Contractor of acceptance or rejection of the submitted or revised Lead Compliance Plan not more than 2 days after submittal of the plan.

The contract price paid for Lead Compliance Plan shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for doing all the work involved in preparing the Lead Compliance Plan, including paying the Certified Industrial Hygienist, and for providing personal protective equipment, training and medical surveillance, as specified in the Standard Specifications and these special provisions, and as directed by the Engineer.

EXCAVATION AND TRANSPORTATION PLAN

Within 2 days after the Engineer’s approval of the Lead Compliance Plan, the Contractor shall submit 3 copies of an Excavation and Transportation Plan to the Engineer.  The Engineer will have 2 days to review the plan.  If revisions are required, as determined by the Engineer, the Contractor shall revise and resubmit the plan within 2 days of receipt of the Engineer's comments.  The Engineer will have 2 days to review the revisions.  Upon the Engineer's approval of the plan, 3 additional copies incorporating the required changes shall be submitted to the Engineer.  Minor changes to or clarifications of the initial submittal may be made and attached as amendments to the Excavation and Transportation Plan.  In order to allow construction to proceed, the Engineer may conditionally approve the plan while minor revisions or amendments are being completed.

The Contractor shall prepare the written, project specific Excavation and Transportation Plan establishing the procedures the Contractor will use to comply with requirements for identifying, classifying, locating, excavating, stockpiling, transporting, and placing (or disposing) of material containing aerially deposited lead and providing quantities of Roadway Excavation (Hazardous Material) prior to excavating hazardous material.  The plan shall conform to the regulations of the DTSC and Cal-OSHA.  The sampling and analysis portions of the Excavation and Transportation Plan shall meet the requirements for the design and development of the sampling plan, statistical analysis, and reporting of test results contained in USEPA, SW 846, "Test Methods for Evaluating Solid Waste," Volume II: Field Manual Physical/Chemical, Chapter Nine, Section 9.1.  The plan shall contain, but not be limited to the following elements:

A.   Excavation schedule (by location and date),

B.   Temporary locations of stockpiled material,

C.  Sampling and analysis plans for areas after removal of a stockpile,

1.   Location and number of samples,

2.   Analytical laboratory,

            D.  Sampling and analysis plan for soil cover,

            E.   Sampling and analysis plan for post excavation

F.   Dust control measures,

G.  Air monitoring,

1.   Location and type of equipment,

2.   Sampling frequency,

3.   Analytical laboratory,

H.  Transportation equipment and routes,

I.    Method for preventing spills and tracking material onto public roads,

J.   Truck waiting and staging areas,

            K.  Site for disposal of hazardous waste,

            L.   Example of Bill of Lading to be carried by trucks transporting lead contaminated material.  The Bill of Lading
                  shall contain: US DOT description including shipping name, hazard class, and ID number; handling codes;
                  quantity of material; and volume of material.  Copies of the bills of lading shall be provided to the Engineer
                  upon placement of material in its final location.  Trucks carrying lead contaminated material shall not leave the
                  highway right of way.

M.  Spill Contingency Plan for material containing aerially deposited lead.

DUST CONTROL
Excavation, transportation, placement, and handling of material containing aerially deposited lead shall  result in no visible dust migration.  The Contractor shall have a water truck or tank on the job site at all times while clearing and grubbing and performing earthwork operations in work areas containing aerially deposited lead.

STOCKPILING
Stockpiles of material containing aerially deposited lead shall not be placed where affected by surface run-on or run-off.  Stockpiles shall be covered with plastic sheeting 13 mils minimum thickness or one foot of nonhazardous material.  Stockpiles shall not be placed in environmentally sensitive areas.  Stockpiled material shall not enter storm drains, inlets, or waters of the State.

MATERIAL TRANSPORTATION
Prior to traveling on public roads, loose and extraneous material shall be removed from surfaces outside the cargo areas of the transporting vehicles and the cargo shall be covered with tarpaulins or other cover, as outlined in the approved Excavation and Transportation Plan.  The Contractor shall be responsible for costs due to spillage of material containing lead during transport.

The Department will not consider the Contractor a generator of the hazardous material, and the Contractor will not be obligated for further cleanup, removal, or remedial action for such material handled or disposed of in conformance with the requirements specified in these special provisions and the appropriate State and Federal laws and regulations and county and municipal ordinances and regulations regarding hazardous waste.

DISPOSAL
Surplus material for which the lead and petroleum hydrocarbon content is not known shall be analyzed for aerially deposited lead and TPH as motor oil by the Contractor prior to removing the material from within the project limits.  The Contractor shall submit a sampling and analysis plan and the name of the analytical laboratory to the Engineer at least 15 days prior to beginning sampling or analysis.  The Contractor shall use a laboratory certified by the California Department of Health Services.  Sampling shall be at a minimum rate of one sample for each 200 cubic yards of surplus material and tested for lead using EPA Method 6010 or 7000 series.

Materials containing aerially deposited lead shall be disposed of within California.  The disposal site shall be operating under a permit issued by the appropriate California Environmental Protection Agency board or department.

The Contractor will obtain the Environmental Protection Agency Generator Identification Number for hazardous waste disposal.  The Engineer will sign all hazardous waste manifests.  The Contractor shall notify the Engineer 5 days before the manifests are to be signed.

The Contractor will obtain the State of California Board of Equalization Identification Number for hazardous waste disposal.  The Engineer will sign all hazardous waste manifests.  The Contractor shall notify the Engineer 5 days before the manifests are to be signed.

Sampling, analyzing, transporting, and disposing of material containing aerially deposited lead excavated outside the pay limits of excavation will be at the Contractor’s expense.

MEASUREMENT AND PAYMENT

Quantities of roadway excavation contaminated by aerially deposited lead or petroleum hydrocarbons will be measured and paid for by contract price.  The County does not, expressly or by implication, agree that the actual amount of work will correspond therewith, and reserves the right to increase or decrease the amount thereof as may be deemed necessary or advisable by the Engineer.

Full compensation for preparing an approved Excavation and Transportation Plan, sampling, analysis, classifying Roadway Excavation (Hazardous Material) as Class I, Class II or Class III, reporting results, stockpiling, transporting and disposing of material containing aerially deposited lead or petroleum hydrocarbons at Class I, Class II or Class III Landfill Facilities and other related work shall be considered as included in the contract price paid for the items of Roadway Excavation (Hazardous Material) Class I, Roadway Excavation (Hazardous Material ) Class II, and Roadway Excavation (Hazardous Material) Class III and no additional compensation will be allowed therefore.

I.   Section 10-1.20A(1), " Erosion Control Blanket (Ditch Lining)," beginning on page SP-58 through the first paragraph on Page SP-59 is renumbered as Section 10-1.20C, "Erosion Control Blanket (Ditch Lining)," and now follows Section 10-1.20B.

J.  Paragraph six of Section 10-1.31, "Fences," is corrected to reference Section 75-1.05, "Galvanizing," of the Standard Specifications.

K.  The last paragraph of Section 10-1.40, "Relocate and Install Water Line," is  replaced with:

"Payment for constructing the complete new water pipe as specified in this section and shown on the plans and connecting the new pipe, including all trenching for the 12-inch conduit under River Road, backfilling, disconnect and removal of existing water pipes and appurtenances, building permit fees, labor, materials, and any other costs associated with completion of this item of work are included in the contract lump sum price paid for relocate and install water line and no additional payment will be allowed therefore."

E.  An additional item titled "Roadway Excavation (Hazardous Material) Class I" with a quantity of 75 cubic yards is added.

F.  An additional item titled "Roadway Excavation (Hazardous Material) Class II" with a quantity of 75 cubic yards is added.

G. An additional item titled "Roadway Excavation (Hazardous Material) Class III" with a quantity of 200 cubic yards is added.

H.  Item No. 20, "Subgrade Enhancement Fabric," is deleted from the Engineer's Estimate.  The fabric is included in the item of work for "Place Asphalt Concrete (Miscellaneous Area)."

The addition and deletion of new items in the Engineer's Estimate has caused some of the items to renumber.  Please refer to the revised estimates.

Please replace pages SP-3, -4, and BB-3, -4, -15, -16, -17 with Add2 Rev. SP-1, -2, and Add2Rev. BB-3, -4, -15, -16, -17 to reflect the changes.

Please fill out the Addendum Acknowledgment sheet on page BB-5 of the Bidder's Book verifying your receipt of this Addendum and submit with your bid.

     ORIGINAL SIGNED                         

Levi Gurule
Senior Civil Engineer

Attachments: ( Requires Acrobat Reader)

• Add2 Rev. SP-1, -2
• Add2 Rev. BB-3, -4
• Add2 Rev. BB-15, -16, and -17
• Chemical Examination Report