Att_02_140P8421Q0068_Project_Specifications.pdf

TECHNICAL SPECIFICATIONS

TOPOGRAPHIC RESTORATION

AT MILLERTON NPS PARCEL

Prepared by:

National Park Service Point Reyes National Seashore

Marin County, California

April 2021

Millerton Parcel Restoration Technical Specifications

DIVISION 01 – GENERAL REQUIREMENTS

01 11 00 Summary of Work 01 14 19 Use of Site 01 27 00 Definition of Contract Line Items 01 29 73 Schedule of Values 01 31 13 Project Coordination 01 31 19 Project Meetings 01 33 00 Submittal Procedures 01 35 29 Health, Safety, and Emergency Response Procedures 01 35 91 Historic Treatment Procedures

01 42 16 Definitions 01 42 19 Reference Standards 01 45 16.13 Contractor Quality Control

01 50 00 Temporary Facilities 01 55 26 Temporary Traffic Control 01 56 00 Temporary Fencing, Barriers and Enclosures 01 57 00 Temporary Controls and SWPPP 01 66 00 Product Storage and Handling Requirements 01 71 13 Mobilization 01 77 00 Closeout Procedures

DIVISION 31 – EARTHWORK

31 11 00 Clearing and Grubbing 31 22 00 Grading

01 11 00-1

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL

1.1 DESCRIPTION

Point Reyes National Seashore (hereinafter referred to as Seashore), which manages the north district of Golden Gate National Recreation Area (GGNRA), is conducting a topographic restoration project on GGNRA lands along the eastern side of Tomales Bay near the town of Millerton (Figure 1). GGNRA owns a small land parcel that incorporates a former section of the historic railroad bed that once ran along the eastern side of Tomales Bay (project site). All of the railroad infrastructure has been removed, but the general topography and compacted soils associated with that former operation remain. At one point, this area (“Parking Lot Area”) along with roadside edge (“Berm”) was graded and graveled to try and provide some additional parking for the adjacent Tomales Bay Oyster Company (TBOC) retail operations, and vegetation was cut on the small bluff or mesa immediately adjacent to the Parking Lot Area (“Vegetation Cut Area”) along with on the East and West Banks (Figure 2). Parking was curtailed a number of years ago, and the National Park Service (NPS) worked on a plan to restore this area to a more natural topography and vegetation community. Most of the non-developed lands along the east side of Tomales Bay support a somewhat mesic scrub community composed of California bay (Umbellularia californica), coast live oak (Quercus agrifolia), toyon (Heteromeles arbutifolia), California blackberry (Rubus ursinus), coffeeberry (Frangula californica), coyotebrush (Baccharis pilularis), orange bush monkeyflower (Diplacus aurianticus), coastal sage (Artemisia californica), and mugwort (Artemisia douglasiana).

To improve success of restoration efforts, the Seashore has secured some floodplain soils from a restoration project along the upper watershed of Lagunitas Creek. These soils have been stored since early winter 2019 at the now defunct Martinelli Ranch facility.

Total amount of material to be hauled is estimated at 650 CY. Stockpiled topsoil quantities were determined based on estimates provided by number of truckloads made from origin site to Martinelli Ranch and independent estimate by construction firm involving in excavating and hauling soil, plus some potential for swell factor1. It is the Contractor’s responsibility to check and confirm estimate grading volumes as needed to prepare a bid. Plastic tarping would need to be removed from the stockpiled topsoils and disposed of an appropriate waste facility off-site. The stockpiled site will be graded to a level condition after all work is completed.

The existing soils in the 6,205-square foot former railroad bed would first be scarified to a minimum depth of 18 inches (with a variance of -1 inch allowed; Figure 3). The current topsoil layer is highly compacted with loosely embedded gravel and oyster shell.

1 Information from email from Preston Brown at SPAWN dated February 25, 2021

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Prior to work, at least seven (7) existing rock bollards located at the road entrance to the project site would need to be moved temporarily to one side and later replaced (Figure 3), and untrenched, stapled silt fencing will need to be installed at the southern end of the site closest to Tomales Bay (Figure 3). Salvaged soils would be rough graded across the former railroad bed area to an approximate equal depth estimated to be 2.25 feet, with variation in depth limited +/- 0.25 feet. Rough grading should ensure that there are no depressional areas to encourage ponding and slightly slope downwards (<2% grade) to the north to allow waters to sheetflow across the project site. A small erosional area on the east side of the former railroad bed cut would also be repaired, and erosion control blanket that meets approved Seashore specifications would be installed (Figure 3).

Access to the project site and Martinelli Ranch is off Highway 1 (Figure 4). At Martinelli Ranch, the Contractor would be required to stake out a temporary access road in the adjacent pasture and remove one section of temporary panel fencing to allow hauling trucks to maneuver within the ranch facility (Figure 4). Staking of access routes at Martinelli Ranch for haul trucks would be conducted by the Contractor in conjunction with the NPS. No other staking of work areas is anticipated to be needed. The gate leading into the pasture and the temporary panel fencing would need to be reestablished at the end of each workday and whenever the ranch facility is unattended to ensure that cows in the pasture don’t get into the ranch facility.

Soils would be hauled approximately 3.5 miles from the Martinelli Ranch to the project site along State Highway 1 (Figure 5). Truck entry and exit from the project site could be constrained by oncoming traffic on Highway 1 and the small size of the project site:

flaggers or construction personnel may be needed to manage haul truck logistics. The project site occurs directly adjacent to retail oyster operations: their retail or operational activities should not be impacted by hauling or other site work and associated parking of employees (Figure 3). No parking or staging is allowed by the Contractor at the oyster company site. The Contractor is responsible for obtaining all encroachment and other permits from the State of California and County of Marin.

Members of the public sometimes access the beach on Tomales Bay and the Vegetation Cut Area through the project site. While construction is going on during the work week, access to the beach and mesa will be discontinued. Signs should be posted saying that there will be no public access. However, when possible, public access should be reinstated on weekends.

Thirteen (13) potential option items would involve cutting some of the Eucalyptus (Eucalyptus sp.) trees in the Vegetation Cut Area (Figure 2); chipping cut Eucalyptus material; and hauling to an appropriate disposal location approved by the Seashore.

Appendix Figure B-3 shows location of trees that would be potentially cut, and a list of trees is provided in Appendix Table B-1. This action would need to be conducted before any of the earthwork at the project site was completed, because trucks would need access to that area before it is scarified, and salvaged topsoils are imported.

01 11 00-3

The proposed project is scheduled for implementation in late summer-early fall 2021. All construction is subject to timing and buffer restrictions, which are discussed in more detail later in this document. The Contractor would provide earthmoving equipment, hauling trucks, and erosion control materials, as well as equipment/vehicles for cutting/hauling Eucalyptus tree material should the any of the option items be exercised.

This component would include mobilization and demobilization of equipment, clearing and grubbing of any plants on topsoil piles or in former railroad bed area, in addition to activities described earlier in this section.

1.2. General Contract Considerations

A. A number of impact avoidance and minimization measures would be incorporated into this project.

– The project components would be conducted in late summer and fall to ensure that implementation does not overlap or only slightly overlaps with the end of breeding season for nesting birds (ends Aug. 1).

– An education program will be conducted for Contractors and their employees before the project begins and as needed throughout the duration of the project as staff changes occur or as conditions warrant. Emphasis of the education program will be on identification of the various species, their legal status and ESA protection, the measures being taken during the project to reduce adverse impacts to them, and conditions that will require stoppage of work, as well as cultural resource and public and worker safety concerns.

– Noise associated with construction will be as short as possible in duration.

– Fueling of any type or addition of oil or other vehicle or equipment chemicals must be done on either concrete, asphalt, or a tarp to eliminate any possibility of run-off.

– Fueling and servicing equipment at least 100 feet away from the shoreline of Tomales Bay.

– The Contractor must maintain a spill kit with boom and sorbent materials at all times during project implementation.

– The Contractor must check the equipment frequently for any fluid leaks and promptly fix any leaks.

– Trucks hauling salvaged topsoils from Martinelli Ranch to former railroad bed area must leave at least 1 foot of freeboard OR cover the truck to prevent soils from ending up on County of Marin roads.

– Stockpiled topsoils shall not be disposed of in any areas except those designated in the Specifications and Graphics.

– The Contractor will need to carefully organize truck hauling schedule to minimize impacts to the oyster retail operations and maintain public safety. A Traffic Safety Plan is required.

01 11 00-4

B. A NPS Contracting Officer’s Technical Representative (COR) will be responsible for inspecting and approving all control operations outlined in the statement of work.

C. Work conducted within the Contract Line Items includes:

1. Scarification of 6,205-square foot former railroad bed to a minimum depth of

18 inches (with an allowable variance of -1 inch; Figure 3). Prior to work start, at least seven (7) rock bollards present at the entrance to the project site would need to temporarily moved to one side to allow equipment and hauling trucks access and later replaced (Figure 3). Also, approximately 14 linear feet (LF) of untrenched, stapled silt fencing would need to be installed before scarification at the southern end of the grading area closest to Tomales Bay (Figure 3).

2. Hauling of an estimated 650 CY of soils from Martinelli Ranch to designed project area 3.5 miles away, with trucks allowing at least 1 foot of freeboard OR covering loads to avoid soils spilling onto County of Marin roads (Figures 4-5). Plastic tarping currently on top of salvaged topsoils would need to be removed from the stockpiled topsoils and disposed of an appropriate waste facility off-site. Lath would need to be installed by the Contractor in collaboration with the NPS to direct truck circulation, as trucks would need to cross into adjacent pasture and back onto ranch site for loading (Figure 4). At the completion of the hauling, the Contractor would need to grade the Martinelli stockpile site to a level condition.

3. Rough grading of an estimated 650 CY of soils to a depth of 2.25 with variation in final topography across the project site limited to +/- 0.25 feet (Figure 3). Rough grading should ensure that there are no depressional areas to encourage ponding and slightly slope downwards (<2% grade) to the north to allow waters to sheetflow across the project site.

4. Repair of one erosional scarp using heavy equipment to use slumped material at bottom of scarp to repair to approximately the same grade as adjacent slopes and then installation of erosion control blanket that meets NPS-approved specifications (Figure 3). Scarp measures 130.7 sq ft (13.2 ft X 9.9 ft; East Bank).

5. Close-out measures for project.

D. Work potentially conducted as Option Contract Line Items includes:

1. Cut anywhere from one to 13 Eucalyptus trees in Vegetation Cut Area (Figure 2); chip material on-site; and haul chipped material to appropriate disposal location. The 13 trees are shown in Appendix Figure B-3 and listed in Appendix Table B-1, with the DBH (diameter at breast height in inches) and number of stems. Each tree represents a separate Option Item. This action would need to be conducted before any of the earthwork at the project site

01 11 00-5 was completed, because trucks would need access to that area before it is scarified, and salvaged topsoils are imported. Detailed specifications relevant to these Option Items is provided in Appendix B.

E. All work as identified and described in the Graphics and Specifications. In the case that there are discrepancies between Graphics and Specifications, Specifications take precedence over Graphics.

F. All work will be performed under a single contract.

G. There is no revegetation work required under this contract.

1.2 LOCATION

A. The project is located on the west side of State Highway 1 near Millerton on the east side of Tomales Bay adjacent to the Tomales Bay Oyster Company (Figure 1).

1.3 ORDER OF WORK

A. All work associated with this contract must wait until the end of bird nesting season as of August 15, 2021. All work must be completed by October 31, 2021.

Soil scarification must proceed hauling of soils to the project site.

1.4 SPECIAL PROJECT IMPLEMENTATION REQUIREMENTS

A. Special Circumstances: No shutdown of the project site is anticipated. However, unforeseeable fire, geo-hazard conditions, heavy rains, weather, discovery of new cultural resource sites or objects, or presence of special status species not previously documented could prompt Contracting Officer to suspend project implementation activities for safety reasons at no cost to the Government or its representatives.

B. Work Dates: Work dates for construction would be from August 15, 2021, through October 31, 2021.

C. Work Sequencing: Certain elements of the project will need to be sequenced in a specific order or be timed to not occur before or after a certain date because of bird nesting restrictions. Also, should any or all of the Option items be exercised, all work involved with cutting of Eucalyptus would need to occur before scarification of the project site and importation of salvaged topsoils.

D. Hours of Work: The Contractor shall conduct all work between the hours of 7:00

AM and 6:00 PM, Monday through Friday, unless authorized by Contracting Officer. Contractor and crew shall not enter the site prior to 6:30 AM or leave the site after 6:30 PM, Monday through Friday. No equipment or other noise generating activities shall be started prior to 6:45 AM or continue past 6:15 PM, 01 11 00-6

Monday through Friday. Weekend and holiday work will only be conducted after prior authorization from the Contracting Officer.

E. Hours for Equipment Delivery: Equipment delivery, supply delivery and service/fueling vehicles shall only enter and exit site work areas by the approved access roads during normal working hours. Equipment delivery, supply delivery or service/fueling vehicles shall only occur between 7:00 AM and 6:00 PM, Monday through Friday.

F. Daily Communications: Contractor shall maintain frequent communications, at least daily, with the Contracting Officer to discuss details of implementation, order of work, methods of minimizing environmental impacts, and other relevant components of work. There will be communication with the Contracting Officer at least once per week either in a meeting or phone call.

G. Compliance with Regulatory Permits: The Contractor shall completely review, be familiar with and adhere to the terms of all permits and agency approvals for this project. The Government will be responsible for securing and providing to the Contractor via the Contracting Officer copies of permits, certifications, or authorizations. Copies of all permits are available from the Contracting Officer and will remain at the project site throughout the duration of the project.

H. Compliance with State, County and Local Permits: The Contractor shall be solely responsible for securing and complying with any permits or authorization required by the California Department of Transportation, the County of Marin, or other local agencies, including, but not limited to, for the proposed project implementation activities, including, but not limited to, traffic and encroachment permits related to the delivery and hauling of construction equipment and soils and traffic control measures required. A Traffic Safety Plan would need to be prepared and submitted to the CO for review and approval prior to project implementation.

I. Compliance with County of Marin COVID-19 Heath Policies: All Contractors must comply with County of Marin COVID-19 current health policies, including mask-wearing; social distancing; not coming to work when sick or having a fever;

and quarantining following exposure to people with COVID-19. The Contractors will be required to submit a plan on how they will comply with the County’s COVID-19 prevention policies.

J. Air Quality and Project Implementation Noise Restrictions: The Contractor shall implement measures to reduce project implementation noise including:

ensuring that all equipment has sound-control devices at least as effective as those originally supplied by the manufacturer and that no equipment with an unmuffled exhaust is operated; limiting work activities to specified times; and prohibiting unnecessary warming up, idling, or engine revving of gas or diesel powered equipment or vehicles.

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K. Air Quality and Dust Control Restrictions: Trucks used for off-site hauling are required to be covered or to have at least 1 foot of freeboard. If, while hauling on-site, Contractor leaves truck uncovered and observes material exiting the truck, Contractor is to stop hauling immediately and cover load in order to eliminate loss and spreading of material.

L. Off-Site Traffic Restrictions and Site Access: The Contractor may be required to secure permits from either the County of Marin or the State of California for hauling of equipment and excess soils. The Contractor must comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. A special permit will not relieve Contractor of liability for damage, which may result from moving of soils. Delivery and haulage access, including contractor mobilization and demobilization, will be scheduled to minimize impacts on traffic on area roadways, including Highway 1.

Flaggers or construction personnel may be necessary to adequately regulate entry and exit of trucks into the small project site, which is located directly adjacent to a parking lot for oyster retail operations. Truck entry and exit shall not interfere with adjacent retail operations. No Contractor parking or staging can occur in the oyster company parking lot. The Contractor must prepare a Traffic Safety Plan that will be submitted to the CO for review and approval prior to start of the project.

M. On-Site Traffic and Access Restrictions: There are no access restrictions within the project site, but as noted above, construction work on the project site cannot interfere with adjacent oyster retail operations.

N. Site Grades and Survey Control: Elevations – if incorporated -- are referenced to North American Vertical Datum 1988 (NAVD88) in feet. Northing and easting coordinate datum is State Plane (California Zone 3), North American Datum 1983 (NAD83) in feet.

O. Proposed Modifications to Graphics or Specifications: Any deviations from graphics and specifications need to be completed and/or approved by Contracting Officer prior to implementation.

1 .5 FIELD VERIFICATION

A. The contractor must field verify all new and existing dimensions affecting the work of this contract before ordering products.

1 .6 SALVAGED MATERIALS

A. In addition to materials specified in other sections, historic materials (as identified by the Contracting Officer) uncovered at any of the sites would remain the property of the Government.

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1.7 ADDITIONAL REPORTS

A. Certain environmental compliance permits or documents may have been prepared for the project.

B. If so, copies of these reports and permits would be available from the Contracting

Officer.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

END OF SECTION

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SECTION 01 14 19

USE OF SITE

1.1 USE OF SITE AND ACCESS ROADS

A. The Contractor shall:

1. Conduct all operations with the least possible obstruction and inconvenience to the public and adjacent oyster retail operations. No parking or staging is allowed in oyster operation’s parking lot (Figure 3).

2. To the extent possible, finish each section before beginning work on the next.

B. Work closely with the Contracting Officer to coordinate work activities (e.g. entry and exit of hauling trucks, etc.), with ongoing oyster retail operations.

C. Manage worker parking and access to avoid impeding access for emergency vehicles, park visitors, adjacent oyster retail operations, and local area residents.

D. Protect the rights of abutting oyster retail operations by:

1. Planning and conducting project operations so that the least inconvenience as possible is caused to adjacent oyster retail operations;

2. Prohibit access of staff and subcontractors to areas outside of the designated project site.

E. Access to Properties: No public road closure is expected for the Project however, if needed, the following is to be adhered to: Contractor shall maintain access for vehicular and pedestrian traffic on Highway 1. As noted earlier, flaggers or contruction personnel may be needed to ensure that the flow of traffic is not impeded on Highway 1 by entry and exit of haul trucks into the project site. A Traffic Safety Plan will need to be prepared by the Contractor and submitted to the CO for review and approval prior to project implementation.

F. The Contractor shall be responsible for providing adequate safeguards, safety devices, and protective equipment, and for taking any other needed actions to protect the life, health, and safety of the public, and to protect property in connection with the performance of the work covered by the Contract.

The Contractor shall perform any measures or actions the Contracting Officer may deem necessary to protect the public and property. The responsibility and expense to provide this protection shall be the Contractor’s, except that which is to be

01 14 19-2 furnished by the Owner as specified in other Sections of these Specifications:

G. The Contractor shall only stage materials and equipment in areas designated for staging and stockpiling. Absolutely, no staging or storage of materials shall occur on adjacent private property (oyster operations) or along Highway 1 (Figure 3). If needed, staging shall only occur in outside of the primary work areas following written authorization by the Contracting Officer. There are no areas other than the project site and Martinelli Ranch than can be used for staging and stockpiling of materials. Staging in project site or Martinelli Ranch areas shall be at the Contractor’s risk, and the Government, or their representatives, shall not be held liable for any damage to or loss of materials or equipment located within these areas or at any location on the project site(s).

H. Access to Worksite: Contractor and Contractor’s employees and subcontractors shall use certain access routes or entranceways as directed by the Contracting Officer. Contractor shall obtain written permission from the Contracting Officer prior to using any new access routes not previously identified.

The Contractor shall maintain access routes, roads, and gates in satisfactory condition during Contract time and repair damages attributable to work of the Project at intervals as needed. After demobilization and prior to final payment, Contractor shall repair any damage to gates, existing access routes, or roads, leaving them in as good or better condition than the condition at Notice to Proceed.

I. Use of Federal Property: Operations shall be confined to Federal or partner property to greatest possible extent and shall not encroach on areas other than those designated or approved for such use by the Contracting Officer.

J. Hauling Restrictions: The Contractor shall comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Contracting Officer. Information on County roads must be obtained from the County. A special permit will not relieve Contractor of liability for damage, which may result from moving of soils.

Delivery and haulage access, including contractor mobilization and demobilization, will be scheduled to minimize impacts on traffic on area roadways, including Highway 1. Flaggers or construction personnel may be necessary to adequately regulate entry and exit of trucks into the small project site, which is located directly adjacent to a parking lot for oyster retail operations (Figure 3). Truck entry and exit shall not interfere with adjacent retail operations.

As noted earlier, a Traffic Safety Plan will need to be prepared by the Contractor and submitted to the CO for review and approval prior to implementation.

K. Minimization of Impacts to Lessees: There are no lessees at either the project

01 14 19-3 site area or at Martinelli Ranch house complex. However, the Martinelli pasture is leased for beef cattle grazing. Hauling trucks will need to access a portion of the pasture for hauling trips. Whenever there are no people present, the gates from the pasture to the ranch facility must be closed to ensure that cows cannot get into the ranch facility. All gates also need to be closed at the end of the day.

L. Parking and Traffic Regulations: Persons involved in project operations shall comply with parking and traffic regulations for use of County/State streets, as enforced by County/State authorities, except for other arrangements as may be agreed to between Contractor and County authorities and approved by Contracting Officer. Speed limits are reduced in town areas such as Point Reyes Station, and the Contractor and its subcontractors are required to follow these speed limits. The Contracting Officer will notify the Contractor if the Government or any members of the public observe speeding by employees of the Contractor or the subcontractor.

M. Existing Improvements in/along Public/Private Roads: Existing street signs, electroliers, utility poles and overhead lines and pole supports, traffic signals, fire hydrants, underground valves and meter boxes, manholes, trees and other items occurring in sidewalk areas or in streets adjacent to the site shall be left undisturbed, unobstructed, and easily accessible at all times during the project, except as otherwise indicated or agreed to between Contractor and County authorities.

N. Covering, moving, trimming, or altering trees and other vegetation within or outside of the Project Area which may become necessary shall be done only with consent of and in cooperation with Contracting Officer and authorities or property owners that have jurisdiction. Contractor shall pay costs that may be incurred.

O. Construction Camp: Establishment of a camp within the park will not be permitted.

P. Residence trailers will not be allowed within the project site or Martinelli Ranch, except for security purposes, as approved by the Contracting Officer.

1.2 PROTECTION OF NATURAL FEATURES

A. The Contractor shall confine all operations to limits shown for the project and will, to the greatest practicable extent, prevent damage to natural surroundings.

Should the Contractor cause harm or damage to natural resources that was not authorized in the Specifications, Graphics, or by the Contracting Officer, the Contractor shall mitigate for these damages by restoring or paying for replacement or restoration of these habitats. Restoration of damaged areas shall occur at no additional expense to the Government.

B. Minimization of Threats to Public Health and Safety: The Contractor shall

01 14 19-4 perform actions that minimize threats to public health. In areas where public access has occurred historically or will occur during the project, Contractor shall not create or leave unattended any alternation to the landscape that will pose a risk to public safety, including, but not limited to large holes, debris, live power, etc., particularly in beach areas regularly accessed by the public.

C. Contamination Prevention Restrictions: The Contractor shall take preventative measures to avoid any spills or leaks on the site from petroleum products. The Contractor shall prepare a Spill Prevention and Response Plan that will be approved by the Contracting Officer. This must be implemented and adhered to by the Contractor. At a minimum, this Plan shall require that staging, storage, refueling areas and any equipment repair or similar activity take place when equipment is at least 100-feet from any Sensitive Resource Area, wetland, creek, pond, ocean, lagoon, or other waterbody or area subject to restriction due to special status wildlife. Refueling shall only occur in areas approved by the Contracting Officer. Staging and fuels and chemical storage areas shall occur only in designated areas: all staging or storage will require prior approval from the Contracting Officer. Protective tarps shall be used during storage, equipment refueling, or equipment repair or comparable method with prior approval of Contracting Officer. The Contractor shall inspect and fully clean up any such leaks or spills that occur on the site.

D. Cleaning of Equipment Prior to Deployment and Use: All hauling trucks, earthmoving equipment, and personnel vehicles shall be thoroughly cleaned, including tires, undercarriages, and body of vehicles prior to being deployed to West Marin, the project site, and Martinelli Ranch. NPS personnel will inspect vehicles prior to being used either at the project site or at Martinelli Ranch. If any of the trucks, earthmoving equipment, or vehicles still have mud, dirt, or vegetative materials or seeds, the equipment will be rejected and will need to be returned to the yard for additional cleaning. If equipment is taken off-site and then returned, it will also need to be re-inspected.

E. Vegetation Biomass Disposal Restrictions: Cut biomass material shall not be disposed of or stockpiled in any areas except those approved by Contracting Officer. No biomass disposal is permitted in wetland or estuarine areas, which are considered Sensitive Resource Areas.

F. Biological Restrictions – Sensitive Resource Areas: For the purposes of this project, Tomales Bay and the beach adjacent to the project site are designated as Sensitive Resource Areas. Because of the high potential for damage to these resources from treatment work, all treatment activities, access, storage, and staging are to remain within the designated Work Areas specifically designated and authorized by the Contracting Officer and shown as such on the Graphics.

Untrenched, but stapled silt fencing will be installed at the southern end of the grading Work Area to protect sensitive resources.

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G. Biological Restrictions – Wildlife: Biological restrictions related to wildlife primarily involve nesting birds. Impacts will be avoided by scheduling work after August 1. During all on-site activities, the contractor shall take all precautions to avoid disturbing, damaging, or killing wildlife such as late-nesting birds or frogs.

Any sightings of these species or nests shall be reported immediately to the Contracting Officer. Treatment within at least 100-feet of late-nesting birds shall be halted until the Contractor receives approval from the Contracting Officer to proceed.

1.3 PROTECTION OF PUBLIC, PROPERTY, AND LANDSCAPE

A. The Contractor shall preserve public and private property and protect monuments established for the purpose of perpetuating horizontal, vertical, property, or boundary control or monitoring station monuments set up for the purpose of long-term monitoring by the owner. When necessary to destroy a monument, the Contractor shall reestablish the monument according to applicable state statute or by the direction of the agency or individual who established the monument.

B. The Contractor shall not excavate, remove, damage, alter or deface any archeological or paleontological remains or specimens. The Contractor shall control the actions of employees and subcontractors on the project to ensure that protected sites are not disturbed or damaged. Should any of these items be encountered, suspend operations at the discovery site immediately, notify the Contracting Officer and continue operations in other areas. The Contracting Officer will inform the Contractor when operations may resume at the discovery site.

C. Existing Utilities: Approximately 48 hours before beginning work in an area, the

Contractor shall notify Underground Service Alert North (USA), at 811 or 800- 642-2444 or https://www.usanorth811.org/ to determine locations of existing utilities. The Contractor shall cooperate with utility owners to expedite the relocation or adjustment of their utilities to minimize interruption of service and duplication of work. The Contractor shall exercise care when working near existing utilities and shall be responsible for all damage, breaks and/or leaks. If damage occurs, the Contractor shall repair utility at no additional expense to the Government.

D. Public Access Safety and Closure: Members of the public sometimes access the beach on Tomales Bay or the mesa and bluff through the project site. While construction is going on during the work week, access to the beach and mesa or bluff will be discontinued. Signs should be posted saying that there will be no public access. However, when possible, public access should be reinstated on weekends.

E. Fencing: The Contractor shall maintain any temporary fencing to prevent pedestrians from entering the worksite and to preserve livestock, crops, or

01 14 19-6 property when working through or adjacent to ranchlands such as use of Martinelli pastures for access of haul trucks to salvaged topsoil at the adjacent ranch facility. Access to the pasture will involve opening of one gate and temporary removal of one section of temporary panel fencing (Figure 4). All removed materials should be retained on-site for later re-installation of the existing fence line by the Contractor. All existing fence line will be maintained in good working condition except where necessary to remove to allow access or to conduct work. The Contractor shall control or prevent animals from entering the Martinelli Ranch facility to the same degree that they were controlled prior to the start of work.

F. Livestock and Gate Control: The Contractor shall follow all Contracting Officer instructions regarding closure of existing gates and reinstallation of temporary panel fencing located at Martinelli Ranch. When hauling trucks are using the pasture for hauling at the Martinelli Ranch, the gate entering the pasture and the temporary panel fencing should be reestablished at the end of the day or when the ranch facility is unattended so that livestock from the pasture cannot enter the ranch facility. The Contractor is liable for all damages resulting from any and all improper gate closure or temporary panel fence reinstallation instructions.

01 27 00-1

SECTION 01 27 00

DEFINITION OF CONTRACT LINE ITEMS

PART I. GENERAL

1.1. DESCRIPTION AND SCOPE

A. Payment for the various items of the Bid Schedule, as further specified herein, shall include all compensation to be received by the Contractor for furnishing all tools, equipment, supplies, and manufactured articles, and for all labor, operations, and incidentals appurtenant to the items of work being described, as necessary to complete the various items of the Work all in accordance with the requirements of the Contract Documents, including all appurtenances thereto, and including all costs of permits and cost of compliance with the regulations of public agencies having jurisdiction, including Safety and Health Requirements of the California Division of Industrial Safety and the Occupational Safety and Health Administration of the U.S. Department of Labor (OSHA). No separate payment will be made for any item that is not specifically set forth in the Bid Schedule, and all costs therefore shall be included in the prices named in the Bid Schedule for the various appurtenant items of work.

B. Except where specified otherwise, payment for lump sum items shall be made for the completed work on a percentage basis of the detailed breakdown in the approved Schedule of Values, with the full amount to be paid to the Contractor upon completion of the work as specified and shown should all work on that item have been completed and to the satisfaction of the government.

C. The Contractor shall submit to the Contracting Officer within five (5) days of award of contract a Schedule of Values in accordance with Section 01 29 73, “Schedule of Values.” Supplementary work items required by the general conditions or the specifications such as periodic site clean-up and maintenance and related items may be included into the breakdown of distinct bid items or as agreed upon by the Contracting Officer.

1.2. BID SCHEDULE DESCRIPTION OF BID ITEMS

Unit bid items will be paid for at the unit prices named in the Bid Sheet(s) for the respective items of work. The quantities of work or material stated as unit price items on the Bid Sheet are best estimates of the general scope of work.

A. CONTRACT LINE ITEM NO. 1 – SCARIFICATION OF PROJECT SITE

1. This line item consists of scarification of 6,205-square foot former railroad bed to a minimum depth of 18 inches (with variation of -1 inch allowed; Figure 3). The current topsoil layer is highly compacted with loosely embedded gravel and

01 27 00-2 oyster shell. This line item must precede or occur before hauling of soils from Martinelli Ranch. Prior to work start, at least seven (7) rock bollards will need to be moved to one side to allow access for equipment and hauling trucks and later replaced once project is complete (Figure 3). Also, at least 14-LF of untrenched, but stapled silt fencing, must be installed at the southern end of the work prior to scarification (Figure 3). The Contractor shall furnish all necessary personnel, equipment, services, and facilities to scarify project site. Costs should include all mobilization, demobilization, and other support services required for scarification, preparation for scarp repair, hauling of topsoils, and rough grading. Work may not start until August 15, 2021, and must be concluded by October 31, 2021.

2. Payment will be made at the contract lump sum (LS) named in the Bid Schedule under Contract Line Item No. 1 for which the price shall constitute full compensation for completion of all work as required per the contract documents

B. CONTRACT LINE ITEM NO. 2 – HAULING OF SALVAGED TOPSOILS

FROM MARTINELLI RANCH TO PROJECT SITE

1. This line item consists of hauling of an estimated 650 CY of soils from Martinelli Ranch to the project site 3.5 miles away, with trucks allowing at least 1 foot of freeboard OR covering loads to avoid soils spilling onto County of Marin roads (Figure 5). Initial excavation and fill quantities were determined based on the number of original truck trips required to transport salvaged topsoil from its original site and estimates by the construction contractor. It is the Contractor’s responsibility to check and confirm estimate grading volumes as needed to prepare a bid. Prior to hauling, the Contractor will remove all plastic tarping on the salvaged topsoil and dispose of in an appropriate location off-site. The Contractor will establish through lath and flagging an established route in the pasture adjacent to the Martinelli Ranch for circulation of trucks for loading, as access to this area is constrained (Figure 4). Removal of temporary panel fencing will be required (Figure 4) and should be reestablished at the end of each workday or when the ranch facility is unattended. Due to limitations on entry and exit from the project site, and the need not to impact the adjacent retail oyster operations, the Contractor may need to provide flaggers or construction personnel at the project site for managing the hauling portion of the project. At the completion of hauling, the Contractor will grade the stockpile site to a level condition. The Contractor shall furnish all necessary personnel, equipment, services, and facilities to haul soils. Costs should include all mobilization, demobilization, and other support services required for hauling. Hauling must occur after scarification of project site. Hauling must be concluded by October 31, 2021.

2. Payment will be made at the contract lump sum (LS) named in the Bid Schedule under Contract Line Item No. 2 for which the price shall constitute full compensation for completion of all work as required per the contract documents.

C. CONTRACT LINE ITEM NO. 3 – ROUGH GRADING OF SALVAGED

TOPSOILS AT PROJECT SITE

01 27 00-3

1. This line item consists of rough grading of an estimated 650 CY of soils to a depth of 2.25 with variation in final topography across the project site limited to +/- 0.25 feet in the 6,205-square-foot project site (Figure 3). Rough grading should ensure that there are no depressional areas to encourage ponding and slightly slope downwards (<2% grade) to the north to allow waters to sheetflow across the project site. The Contractor shall furnish all necessary personnel, equipment, services, and facilities to conduct rough grading. Costs should include all mobilization, demobilization, and other support services required for grading.

This line item must follow after all hauling of salvaged soils from Martinelli Ranch is complete.

2. Payment will be made at the contract lump sum (LS) named in the Bid Schedule under Contract Line Item No. 3 for which the price shall constitute full

D. CONTRACT LINE ITEM NO. 4 – REPAIR OF SCARP AT PROJECT SITE

1. This line item consists of repair of one (1) small erosional scarp using heavy equipment to collect slumped material at base of slope and rough grade slopes to surrounding grade and then installation of erosion control blanket that meets NPS-approved specifications (Figure 3). The scarp on the east slope of the project site measures 130.7 sq ft (13.2 ft X 9.9 ft). The Contractor shall furnish all necessary personnel, equipment, materials, services, and facilities to conduct repair of the scarps and installation of NPS-approved erosion control material. Erosion control material should be biodegradable with no plastic netting and should be North American Green BioNet® SC150BN™ or an equivalent approved by the NPS.

Costs should include all mobilization, demobilization, and other support services required for this line item. This line item should be performed after hauling of soils from Martinelli Ranch is complete. It must be completed by October 31, 2021.

2. Payment will be made at the contract lump sum (LS) named in the Bid Schedule under Contract Line Item No. 4 for which the price shall constitute full

E. CONTRACT LINE ITEM NO. 5 – PROJECT CLOSEOUT

1. This line item consists of completing close-out measures for the project. It must be completed by October 31, 2021.

2. Payment will be made at the contract lump sum (LS) named in the Bid Schedule under Contract Line Item No. 5 for which the price shall constitute full

01 27 00-4

1.3. BID SCHEDULE DESCRIPTION OF OPTION ITEMS

Unit option items will be paid for at the unit prices named in the Contract Bid Schedule for the respective items of work. The quantities of work or material stated as unit price items on the Bid Sheet are best estimates of the general scope of work.

The line items listed below will be awarded should funds permit. Award of any option contract line items may occur concurrently with the Contract Line Items described above.

A. OPTION – CONTRACT LINE ITEM NOS. 6-18 – CUTTING OF

EUCALYPTUS TREES

1. These option line items consists of cutting anywhere from one (1) to up to 13

Eucalyptus tree in the Vegetation Cut Area (Figure 2), chipping cut material, and hauling chips to an appropriate disposal location. The 13 trees are shown in Appendix Figure B-3 and listed in Appendix Table B-1, with the DBH (diameter at breast height in inches) and number of stems. Each tree represents a separate Option Item. This line item must precede scarification or hauling of soils from Martinelli Ranch. Detailed specifications relevant to this Option Item work are provided in Appendix B. Any work under these line items would need to be coordinated with NPS, as herbicide would need to be applied immediately after cutting so that herbicide is translocated. The NPS would perform herbicide treatment and would be responsible for ensuring that the proper permits are obtained. The Contractor shall furnish all necessary personnel, equipment, services, and facilities to cut, chip, and haul material. Costs should include all mobilization, demobilization, and other support services required for cutting, chipping, and hauling of Eucalyptus material. Work may not start until August 15, 2021, and must be concluded by October 31, 2021. This action would need to be conducted before any of the earthwork at the project site was completed, because trucks would need access to that area before it is scarified, and salvaged topsoils are imported. The Government may exercise one, none, or any combination of option items at its sole discretion.

2. Payment will be made at the contract lump sum (LS) named in the Bid Schedule under each applicable Option Contract Line Item No. 6 - 18 for which the price shall constitute full compensation for completion of all work as required per the contract documents

Not Used.

END SECTION

01 29 73-1

SECTION 01 29 73

SCHEDULE OF VALUES

1.1 SUMMARY

A. Schedule includes: Requirements for preparation, format, and submittal of Schedule of Values.

B. Related Sections:

1. General Conditions

2. Section 01 33 00 Submittal Procedures

3. Section 01 31 13 Project Coordination

1.2 PREPARATION

A. The Contractor shall prepare a Schedule of Values identifying costs of Major Items of Work and other costs shown in sample included at end of this Section.

Note that the example shown does not necessarily identify all the necessary work activities and should be considered a minimum.

B. The major items of work, including the contract bid items, shall be further broken down into definable features of work. The Contractor shall assign prices to all features of work that aggregate the Contract Price. The Contractor shall base prices on costs associated with scheduled activities based on the Project Schedule for each Major Item of Work and associated features of work items.

1.3 SUBMITTALS

A. Within five (5) days of the Award of Contract, the Contractor shall submit a preliminary Schedule of Values in accordance with this Section.

B. Submit corrected Schedule of Values within 5 days upon receipt of reviewed

Schedule of Values but no later than 10 days prior to anticipated submittal of first Application for Payment, in accordance with the General Conditions.

C. Because the ultimate requirement is to develop a detailed Schedule of Values sufficient to determine appropriate monthly progress payment amounts, sufficient detailed breakdown shall be provided to meet this requirement. NPS and the Contracting Officer shall make determination of acceptable numbers, details, and description of values established. If, in the opinion of the Contracting Officer, a

01 29 73-2 greater number of Schedule of Values items than proposed by the Contractor is necessary, the Contractor shall add the additional items so identified by the Contracting Officer.

D. The Contractor and Contracting Officer shall meet and jointly review the detailed

Schedule of Values within five (5) days from the proposed date of Notice to Proceed. The value allocations and extent of detail shall be reviewed to determine any necessary adjustments to the values and to determine if sufficient detail has been proposed. Any adjustments deemed necessary to the value allocation or level of detail shall be made by the Contractor and a revised detailed Schedule of Values shall be submitted prior to the Notice to Proceed.

E. Upon request, support prices with data which will substantiate their correctness, including invoices, receipts, etc.

F. If activities are added or removed from the Progress Schedule, revise the

Schedule of Values and resubmit.

1.4 SAMPLE SCHEDULE OF VALUES

A. The following is an acceptable form for the Schedule of Values.

Price Sheet Activity Code1

Item of Work Description Value

Previous % Complete

Previous Payments

Current % Complete

Earned this Period

Total Earned to Date

% Remaining to Complete

CONTRACT LINE ITEM NO. 1

Scarification to minimum depth of 18 inches for 6,205-sf project site

CONTRACT LINE ITEM NO. 2

Hauling of estimated 650 CY of soil 3.5 miles from Martinelli Ranch to project site

CONTRACT LINE ITEM NO. 3

Rough grading of imported topsoil to uniform depth of 2.25 feet across 6,205-sf impact site.

CONTRACT LINE ITEM NO. 4

Repair of one small erosional scarp on the

East Bank adjacent to the project site.

OPTION - CONTRACT LINE ITEM NOS.

6 - 18

Cut medium to large Eucalyptus; chip cut material; and haul to appropriate disposal location. See Appendix B, including Table

B-1 and Appendix Figure B-3 for more information.

1…