Technical_Specifications_11-8-23.pdf

TECHNICAL

SPECIFICATIONS

Technical Provisions Sarasota County Standard Specifications

Supplement to FDOT Specifications

TECHNICAL SPECIFICATIONS

TABLE OF CONTENTS

Central County Solid Waste Disposal Complex

North Borrow Area

SPECIFICATIONS

SECTION DESCRIPTION

00106 WILDLIFE EDUCATION AND PROTECTION

00600 PREVENTION, CONTROL, & ABATEMENT OF EROSION & WATER

POLLUTION

01026 MEASUREMENT AND PAYMENT

01051 SURVEY

01200 PROJECT MEETINGS

01300 SUBMITTALS

01301 SCHEDULE OF VALUES

01310 CONSTRUCTION PROGRESS SCHEDULES

01380 CONSTRUCTION PHOTOGRAPHS

01500 TEMPORARY FACILITIES AND CONTROLS

01505 MOBILIZATION/DEMOBILIZATION

01650 TESTING, ADJUSTING, AND CLEAN-UP

01700 PROJECT CLOSEOUT

02050 DEMOLITION

02140 DEWATERING

02161 SHEETING AND SHORING

02222 TRENCHING, BACKFILLING AND COMPACTION

02722 DRAINAGE PIPE AND STRUCTURES

02813 HYDRO-SEEDING/MULCHING

TC-1

02817 CLEARING AND GRUBBING, EXCAVATION, FILLING (EMBANKMENT)

GRADING AND STABILIZED SUBGRADE

02818 UNSUITABLE MATERIALS

02938 SODDING

02960 RESTORATION OF SURFACE IMPROVEMENTS

TC-2

Section 00106 WEP- Page 1 of 12

SARASOTA COUNTY

SECTION 00106

WILDLIFE EDUCATION AND

PROTECTION

PART 1 – GENERAL

The work specified in this Technical Provision consists of adherence to federal and state regulations concerning protected species and critical habitat and all specific measures for this project agreed upon between the COUNTY and federal and state agencies. Specifically included in this work is the implementation of a wildlife education plan and measures to avoid direct impacts to Threatened and Endangered or otherwise protected species that are either known to occur or have potential to occur within the limits of this project, including but not limited to gopher tortoises (Gopherus polyphemus), eastern indigo snakes (Drymarchon couperi), bald eagles (Haliaeetus leucocephalus), wood storks (Mycteria americana) and Florida sandhill cranes (Antigone canadensis pratensis). The CONTRACTOR shall use extreme caution during the entire construction period to avoid threatening, harming or harassing state and federal listed and protected species. The CONTRACTOR shall immediately stop work and contact the COUNTY if any federal or state protected species is encountered during construction activity.

If activities are determined to result in adverse impacts to Threatened and Endangered species, clearing activities will be discontinued and/or redirected until proper measures have been taken to ensure protection of the affected wildlife as applicable. Species that require specific attention, as well as measures for their protection, are described in the remainder of this section.

The CONTRACTOR will implement wildlife monitoring and protection methods that will include the following elements:

A clearly defined project team communication structure

Permitting and compliance requirements

A wildlife education plan for all on-site staff

Species-specific protection measures that will be implemented during construction activities

Reporting protocols and submittal requirements

Species-specific monitoring for listed wildlife that may potentially be encountered on or in the immediate vicinity of the project area will be conducted by the COUNTY.

The following subsections detail each of these elements as designed specifically for this project to comply with applicable State and Federal wildlife regulations, project permit conditions, and project technical specifications to ensure the protection of fish and wildlife resources on the project site and adjacent to the project area.

Section 00106 WEP- Page 2 of 12

1.1 COMMUNICATION STRUCTURE

A clearly defined communication structure is critical to the implementation of a successful wildlife monitoring and protection plan. The CONTRACTOR will consult with the COUNTY during the design and implementation of pre-construction surveys and during the implementation of protective measures for any documented wildlife. The COUNTY or its representative will consult with State and/or Federal wildlife agencies as needed.

A. CONTRACTOR’s Chain of Command

The CONTRACTOR has also established a clearly defined chain of communication for the distribution of educational information to all personnel and the timely reporting of any incident involving wildlife. The CONTRACTOR will ensure that staff receives the required educational materials.

B. State and Federal Agency Communication

State and federal wildlife laws and project permits require that agency representatives be contacted immediately following any incident resulting in the injury or death of protected wildlife. If an incident occurs that may involve injury or death to a listed species, all work in the area will be immediately suspended and the CONTRACTOR or SUBCONTRACTOR personnel will immediately notify the COUNTY. The incident will be investigated and reported immediately and will include the following information:

A written summary of the conditions under which the incident occurred

The time and date of the incident

Photo documentation

The location of the incident plotted on project plans and logged by GPS

Following the required investigation and documentation, the COUNTY will notify the appropriate wildlife agencies. A written summary of the incident will be provided to the COUNTY for forwarding to the appropriate wildlife agencies within 24 hours of the incident. The COUNTY will coordinate all communication between project and agency representatives which will be clearly documented in a Wildlife Log and will include:

The date and time

The parties involved

Any agency direction regarding actions that should be taken in response to the incident The CONTRACTOR’s personnel will not handle or transport any dead or injured wildlife.

Dead or injured wildlife will be recovered by the appropriate wildlife agency staff, or another authorized individual as directed by the U.S. Fish and Wildlife Service (USFWS) and/or the Florida Fish and Wildlife Conservation Commission (FWC), in accordance with project permits and applicable state and federal regulations.

Section 00106 WEP- Page 3 of 12

1.2 PERMITS AND COMPLIANCE

The USFWS is the federal agency responsible for review and issuance of authorizations pertaining to federally listed wildlife and enforcing protection of federally listed wildlife pursuant to the Endangered Species Act. At the time of this RFP solicitation, the USFWS has not required nor issued any federally listed wildlife authorizations for the North Borrow Area Project. However, this does not preclude the COUNTY or their CONTRACTORS from abiding by laws mandated under the Endangered Species Act. In addition to these laws, the CONTRACTOR will comply with any permit conditions pertaining to protection of federally listed wildlife included in the State 404 Program Individual Permit provided by the COUNTY and issued by the Florida Department of Environmental Protection (FDEP).

The USFWS also administers the federal Migratory Bird Treaty Protection Act of 1918, which protects most birds and their nests from unauthorized impact. The COUNTY is committed to compliance with this Act and has developed programmatic measures to monitor and protect nesting birds during project construction. The CONTRACTOR will follow these measures during construction of the project to preclude the need for project permitting pursuant to the Migratory Bird Treaty Act of 1918.

The FWC is the state agency responsible for the protection of listed species. A 100 percent gopher tortoise survey must be conducted within phase limits prior to the commencement of each phase. The COUNTY will initiate coordination with the FWC to obtain authorization to relocate gopher tortoises to an approved offsite recipient site, if necessary. Other than the potentially necessary gopher tortoise authorization, no other permits have been required by FWC to address state listed species on the project site. If any other state or federally listed species are observed during pre-construction surveys, agency coordination and permitting will be addressed by the COUNTY as needed to address state-listed and federally listed species.

The CONTRACTOR is committed to implementing all necessary protection measures to ensure that construction activities do not adversely impact listed species and non-listed wildlife species.

1.3 LISTED SPECIES EDUCATION PROGRAM

CONTRACTOR will provide educational materials (e.g., presentations, posters, pamphlets) pertaining to project requirements for the protection of listed wildlife for distribution and presentation to all project construction personnel. The wildlife educational materials will address species known to occur on the project, such as the bald eagles, gopher tortoises and various migratory birds. The educational materials will also address species that have not been documented in the project area but could potentially be discovered there, such as the eastern indigo snake, the wood stork, and the Florida sandhill crane.

The wildlife education materials should include:

Methods for identifying each listed species that could potentially occur in the project area

Civil and criminal penalties for harming, harassing or killing listed species

Section 00106 WEP- Page 4 of 12

Measures to be taken if listed species are observed within or immediately adjacent to construction areas

Reporting and communication procedures for any listed wildlife observations or incident

Bi-lingual materials in English and Spanish

The CONTRACTOR will present and provide educational materials to all construction staff at a pre-construction meeting prior to the start of any work on-site. The educational materials will be provided in both English and Spanish translations. The CONTRACTOR will also prominently display materials during the life of the project, and regularly re-enforce the materials during construction personnel meetings. The CONTRACTOR will take appropriate actions to enforce compliance with the listed species protection requirements presented in the education program.

1.4 WILDLIFE BIOLOGIST

CONTRACTOR will coordinate with the COUNTY’s representative who will serve as the onsite monitor for state and federally listed species, lead the gopher tortoise relocation efforts and assist with educating construction personnel.

1.5 GENERAL BEST MANAGEMENT PRACTICES FOR ALL WILDLIFE

CONTRACTOR will implement the following best management practices for all wildlife on the project site:

No person will feed, chase, harass, capture or kill any animal or bird on the project site.

Feeding of alligators will be strictly prohibited in accordance with Florida law.

All vehicles operating on the project site will obey project speed limits.

The job site will be kept free of trash. All food waste will be disposed of in appropriate closed receptacles.

Construction personnel will immediately notify the Project Manager and the wildlife monitor of any observations of injured or dead wildlife.

Vegetation clearing and grubbing activities will be conducted in a manner that minimizes the disturbance to wildlife by providing natural escape corridors.

1.6 PROTECTION OF MIGRATORY BIRD SPECIES

The COUNTY’s wildlife biologist will keep construction activities under surveillance, management, and control to prevent adverse impacts to migratory birds and their nests. Migratory bird species monitoring will be conducted during the migratory bird nesting season, which occurs from February 1st to June 30th. Due to the size of the project, completion of all clearing and grubbing outside of the migratory bird nesting season may not be possible.

A. Applicable Law

All construction personnel will be advised that migratory birds are protected by the USFWS

Section 00106 WEP- Page 5 of 12 pursuant to the Migratory Bird Treaty Act of 1918. The CONTRACTOR acknowledges that they will be held responsible for harming or harassing birds, their eggs, or their nest as a result of construction activities.

B. Migratory Bird Monitoring

The COUNTY’s wildlife biologist will be responsible for monitoring of the project area during construction activities throughout the migratory bird nesting season, which occurs from February 1st to June 30th. Daily monitoring will be conducted during dawn or dusk hours by the wildlife biologist. The wildlife biologist will take caution to avoid disturbance to the nesting birds. The wildlife biologist will maintain a log that documents documenting observations and nesting activities of listed bird species.

C. Nesting Activity Notification

Any nesting activity observed by the COUNTY’s onsite wildlife biologist will be reported immediately, which may result in work stoppages, creation of a buffer area, or restart of construction activities.

D. Migratory Bird Presence/Absence Survey

The COUNTY’s onsite wildlife biologist will conduct numerous site inspections for migratory birds during the migratory bird nesting season.

E. Nesting Within Construction Area

If nesting is documented within the project footprint, the CONTRACTOR will implement the following measures.

A temporary, 200-foot buffer will be created around the nests and clearly marked with signage to avoid entry by construction personnel. The signage will be approved by the COUNTY.

The area will be left undisturbed until nesting is completed or terminated, and the chicks fledge.

The decision to allow construction in a former nesting site will be determined by the COUNTY in consultation with the USFWS and the FWC.

Access to the nesting sites will be limited unless accompanied by the wildlife monitor, the COUNTY, or wildlife agency staff.

A notice will be placed on the bulletin board in the CONTRACTOR’s field office and will be maintained by the CONTRACTOR. The notice will clearly identify the bird nesting areas and will clearly state "BIRD NESTING AREAS ARE PROTECTED BY THE FLORIDA

THREATENED AND ENDANGERED SPECIES ACT AND THE FEDERAL MIGRATORY

BIRD TREATY ACT".

If construction activities in a given area of the project site cease for any period of time, nesting may occur before work can resume. Consequently, construction will be altered or suspended to

Section 00106 WEP- Page 6 of 12 avoid impacts to the nesting birds. If nesting has not yet commenced on the project site, the CONTRACTOR will take the necessary actions as needed to alter and make areas that may potentially be suitable for nesting undesirable to the birds.

F. Potential Listed Birds

The following species of birds are known to exist in areas either within or adjacent to the project site and may potentially be observed during construction activities.

1. Bald Eagles

No bald eagle (Haliaeetus leucocephalus) nests have been documented directly in the project footprint. However, one active nesting territory (SA-084) was documented immediately adjacent to the project site. The locations of known eagle nests in the vicinity of the project are shown on the construction plans along with their primary and secondary protection zones. Given the proximity of this nest and other nearby nests, incidental sightings of bald eagles are expected. No excavation within the 600-foot protection zone of the SA-084 nests is proposed. A section of the project haul route crosses the outer portions of the secondary 660-foot protection zone of the nests.

Although no longer classified as threatened at the State or Federal levels, bald eagles remain protected pursuant to the Migratory Bird Treaty Act of 1918, the Bald and Golden Eagle Protection Act, and Florida law. Bald eagle educational materials will be distributed to construction personnel during the listed species educational training. The wildlife biologist will advise construction personnel on how to identify bald eagles and nests and the actions that should be taken in the event a new nest is documented at the project site. Monitoring activities will be particularly vigilant during the October to May bald eagle nesting season for the potential evidence of nesting activities by bald eagles on or immediately adjacent to the project. If any new nesting activity is observed, all work within 660 feet of the potential nest will be suspended, and the COUNTY will notify the USFWS in accordance with the communication structure. In the event new nests are documented, the COUNTY will initiate consultation with the USFWS to determine if additional measures are required to protect the new nest.).

A section of the project haul route crosses portion of the 660-foot eagle nest protection zone. Site work for haul road improvements between 330 and 660 feet from the nests are recommended to be completed outside of the October to May bald eagle nesting season. Travel by dump trucks through the 660-foot nest protection zone of an eagle nest may occur during the non-nesting season (May – September) and during the October to May nesting season with concurrence from the USFWS. If concurrence is not obtained from the USFWS to haul through the 660-foot nest protection zone during the nesting season, the CONTRACTOR shall use an alternate haul route. The CONTRACTOR should also use caution to minimize noise and limit activity within the 660-foot protection zone during the nesting season.

Construction or hauling activities may occur within the 660-foot eagle nest protection zone during

Section 00106 WEP- Page 7 of 12 the nesting season if nest monitoring, following the Bald Eagle Monitoring Guidelines (USFWS 2007d), confirms that eagles have not returned to the nest by 1 October, or that nestlings have fledged before 15 May. In either situation, the COUNTY will notify the USFWS. Managers of any project that follows these guidelines and use nest monitoring to allow construction within 660 feet during the nesting season must provide monitoring reports to the USFWS. In addition to ensuring that the eagles are not disturbed while nesting, this will also provide data to analyze the appropriateness of the protective measures.

2. Wood Storks and Wading Birds

Wood storks (Mycteria americana) are state and federally protected in accordance with Chapter 68A-27, F.A.C. and the Endangered Species Act of 1973. A number of regionally common state listed wading birds are also protected under Chapter 68A-27, F.A.C. Both wood storks and wading birds are also protected under the Migratory Bird Treaty Act of 1918.

Endangered wood storks have not been documented to nest within the project footprint but the project is located within the 18.6-mile Core Foraging Area (CFA) of four known rookeries. In addition to these known rookeries, wading bird rookeries have also been documented within 0.75 miles of the project site. Given the number of wetlands and surface waters in the project area, it is likely that wood storks and other listed wading birds forage within the project when site conditions are suitable. Educational materials specific to wood storks and wading birds will be distributed to construction personnel during the listed species educational training. The wildlife biologist will advise construction personnel on how to identify wood storks and other wading birds (and their nests) and the actions that should be taken in the event that a nest is documented at the project site.

Management guidelines specific to wood storks are outlined below based on the USFWS’s Habitat Management Guidelines for the Wood Stork in the Southeast Region published in January 1990.

The CONTRACTOR must adhere to management zones and guidelines for wood stork feeding sites and nesting colonies as outlined in the guidelines referenced above. Wood stork nests and trees are protected year-round and will not be disturbed or removed.

Disturbance to actively foraging wood storks will be avoided. Construction activities in areas with actively feeding wood storks will be suspended until the storks vacate the area. Monitoring activities will be particularly vigilant during the January to June wood stork nesting season.

Evening monitoring events will search for potential roosting sites on or immediately adjacent to the project. No human intrusion will be allowed within 300 feet of an active nesting or feeding colony. In some cases, a 750-foot buffer must be maintained for foraging wood storks where no vegetation screen exists. Nesting sites have a higher level of protection with restrictions established for both the primary (500-1500 feet outside of colony) and secondary zones (1500-2500 feet outside of colony). If wood storks are observed on the project site, all construction activities within 300 feet of an active nest colony or within 500-1000 feet of an active roost will be suspended and the COUNTY will contact the USFWS, and the FWC, as necessary.

Section 00106 WEP- Page 8 of 12

Dewatering activities on the project are likely to create conditions that attract wood storks and other wading birds to the site for foraging. To the extent practicable, dewatering ditches and holding cells will be located away from haul routes and active construction areas so as to maintain a buffer of 300 feet between foraging wood storks and construction activities. If the wildlife biologist observes congregations of wading birds near active roadways and construction areas, the CONTRACTOR will consult with the COUNTY to attempt to develop a dewatering plan that does not attract wading birds, if practicable. If modification of the dewater system is not practicable, warning signs and/or reduced speed limits will be implemented, as deemed appropriate.

3. Florida Sandhill Cranes

The Florida sandhill crane (Antigone canadensis pratensis) is a State threatened species protected under Chapter 68A-27, F.A.C. and is also protected pursuant to the Migratory Bird Treaty Act of 1918. No Florida sandhill crane nests have been documented within the project footprint. However, Florida sandhill cranes have potential to utilize the wetlands within the project area and surrounding lands.

Florida sandhill crane educational materials will be distributed to construction personnel during the listed species educational training. The wildlife biologist will advise construction personnel on how to identify Florida sandhill cranes and nests and the actions that should be taken in the event that cranes or a nest is documented at the project site.

Sandhill cranes select nest sites flooded by shallow water to protect the incubating cranes and eggs from predators. Typically, the nest is constructed on a platform of vegetation surrounded by water within an herbaceous wetland. Because sandhill cranes will sometimes nest in artificial conditions created by construction and dewater activities, the CONTRACTOR will design and implement construction activities to minimize the likelihood that sandhill cranes will be attracted to and nest on the project site. Particular care will be taken to avoid the creation of islands in areas flooded by shallow water within dewatering effluent storage area as this situation may attract nesting sandhill cranes and a number of other migratory birds. Monitoring will be particularly vigilant for nesting activities by sandhill cranes during the January to April sandhill crane nesting season.

If nesting sandhill cranes are discovered, the COUNTY will consult with FWC biologists regarding nest buffer requirements. In some cases, 400-foot buffers have proved adequate to protect nests.

However, it should be noted that buffers of more than 400 feet may be required in some cases.

Conversely, some sandhill cranes may select nest sites less than 400 feet from potential sources of disturbance and successfully nest there. If construction activities are required closer than 400 feet from a nest, monitoring will be provided to ensure the activity does not result in nest abandonment or disturbance of incubating adults.

During incubation, adults may be expected to be continuously present at the nest. If monitoring determines that adults are not present at a nest with eggs for two consecutive 15-minute periods or are exhibiting agitated behavior or vocalization, the surrounding construction activities will be

Section 00106 WEP- Page 9 of 12 evaluated to identify and immediately correct the cause of incubation disruption.

If adult sandhill cranes and chicks are documented on or adjacent to the project site, signs will be posted along project access or haul roads to alert drivers and machine operators about the potential presence of foraging cranes. Adult cranes with chicks are particularly susceptible to vehicle collisions because they typically walk instead of fly. If adults and chicks are discovered on the project, construction activities will be monitored to ensure that implemented protection measures are adequate to protect cranes and to document efforts to ensure protection of cranes. If construction activities occur within 1,500 feet of documented nesting cranes, escape routes will be maintained to allow cranes to avoid construction activities and move to alternative wetland and upland habitats for foraging and roosting.

1.7 PROTECTION OF GOPHER TORTOISES

The COUNTY will keep construction activities under surveillance, management, and control to prevent impacts to gopher tortoises and their burrows. The CONTRACTOR acknowledges that they will be held responsible for any gopher tortoises harmed, harassed, or killed as a result of construction activities. Prior to construction commencement, the COUNTY will be responsible for obtaining a gopher tortoise relocation permit in accordance with the rules, regulations, and requirements outlined under Chapter 68A-27, F.A.C. specific to gopher tortoise protection, if gopher tortoises are found within the project area. The COUNTY will be responsible for delineating the project construction limits prior to performing a 100% census. The COUNTY will be responsible for relocating gopher tortoises (and their commensals) under the direction of their wildlife biologist prior to initiation of construction activities. All gopher tortoise surveys, permitting, and relocation activities on the project will be supervised by an FWC approved Gopher Tortoise Authorized Agent.

A. Applicable Law

All construction personnel will be advised that gopher tortoises are listed by the State of Florida as a Threatened species and protected by Chapter 68A-27, F.A.C. The CONTRACTOR acknowledges that they will be held responsible for taking, harming, or harassing gopher tortoises, their eggs, or their burrows as a result of construction activities. Preliminary surveys for the tortoise and its burrows revealed low density populations of tortoises which will need to be relocated prior to initiation of construction activities if they are still present immediately prior to construction. The COUNTY will be responsible for conducting a 100% gopher tortoise census in support of the FWC’s gopher tortoise permitting requirements within 90 days of the commencement of construction in a given phase. A copy of the FWC permit will be provided to the CONTRACTOR along with supporting information. The CONTRACTOR will implement a wildlife education program to educate construction personnel so they are able to identify gopher tortoises and their burrows as well as commensal species.

B. Relocation Requirements

Section 00106 WEP- Page 10 of 12

Prior to commencement of construction, the COUNTY will be responsible for relocating gopher tortoises in accordance with the conditions of a FWC permit and criteria outlined in the FWC’s Gopher Tortoise Permitting Guidelines revised on July 2020).

1.8 PROTECTION OF EASTERN INDIGO SNAKES

No eastern indigo snakes were identified within the project area. However, the species utilizes a wide variety of habitats in peninsular Florida and are difficult to detect because of their cryptic nature. The project area and lands immediately surrounding the project area contains what is considered suitable habitat for the species. Therefore, eastern indigo snakes may be expected to occupy the project site and may be accidently injured or killed during site clearing and construction activities.

The CONTRACTOR will instruct all personnel associated with the project of the potential presence of and the need to protect eastern indigo snakes. The COUNTY’s wildlife biologist will be onsite during clearing and grubbing and construction activities to monitor for the presence of eastern indigo snakes.

The CONTRACTOR must comply with the technical provisions outlined below to minimize adverse impacts to eastern indigo snakes.

A. Applicable Law

All construction personnel will be advised that there are civil and criminal penalties for harming, harassing, or killing eastern indigo snakes, which are protected under the Endangered Species Act of 1973. The CONTRACTOR acknowledges that they will be held responsible for any eastern indigo snakes harmed, harassed, or killed as a result of construction activities. The CONTRACTOR will strictly comply with the USFWS’s Standard Protection Measures for the Eastern Indigo Snake as conditioned by the FDEP State 404 Program Individual Permit and acknowledges that failure to do so could result in civil and criminal penalties. The CONTRACTOR will also implement an education plan and additional conservation measures as outlined below.

B. Eastern Indigo Snake Education Plan

The COUNTY will provide a qualified wildlife biologist to serve as the onsite eastern indigo snake observer. The CONTRACTOR will provide educational materials pertaining to project requirements for the protection of the eastern indigo snake. These materials will be provided to the CONTRACTOR to distribute and present to all project construction personnel. The educational materials will consist of a combination of posters or videos, pamphlets, and lectures and will include, at a minimum, the following information:

Description of the indigo snake, its habits, and protection under Federal Law Instructions not to injure, harm, harass, or kill eastern indigo snakes

Directions regarding who to notify if an eastern indigo snake is observed

Directions regarding the actions to take if an eastern indigo snake is observed including suspending construction activities in the vicinity of the observation until the snake has had

Section 00106 WEP- Page 11 of 12 sufficient time to move away from the site on its own accord

Directions that only a qualified individual, who has been either authorized by a Section 10(a)(1)(A) permit issued by the USFWS, or designated as an agent of the State of Florida by the FWC for such activities, is permitted to come in contact with an eastern indigo snake

Telephone numbers of pertinent agencies to be contacted if a dead indigo snake is encountered

Instructions that, if necessary, indigo snakes will be held in captivity by a qualified and authorized individual only long enough to transport them to a release site and at no time will two snakes be kept in the same container during transportation

C. Eastern Indigo Snake Protection Methods

The CONTRACTOR will implement additional conservation measures in an effort to minimize adverse impacts to eastern indigo snake populations. The CONTRACTOR will implement the following general protection methods to minimize adverse impacts to eastern indigo snakes:

Pre-construction surveys and monitoring of clearing activities and the demolition of any onsite structures will be performed to note any eastern indigo snake locations

Standard Protection Measures for the eastern indigo (according to the USFWS) snake will be implemented during all construction activities

Speed limits of 25 miles per hour or less will be posted for all onsite vehicular traffic.

Eastern indigo snake educational information will be made available to construction personnel.

All personnel will be notified of the possibility that eastern indigo snakes could be present in the project area and the procedure to take if a snake is seen.

Only authorized individuals will be allowed to come in contact with an eastern indigo snake

The COUNTY will submit an eastern indigo snake monitoring report to the USFWS Project Biologist within 60 days of the conclusion of clearing. The report will include any sightings of eastern indigo snakes or not and any other obligation as stipulated by the FWC.

The following sections summarize additional requirements the CONTRACTOR shall comply with to minimize adverse impacts to eastern indigo snakes.

D. Eastern Indigo Snake Monitoring

The COUNTY will provide a qualified wildlife biologist to be present during all construction activities to document any eastern indigo snake observations.

E. Eastern Indigo Snake Reporting and Submittal Requirements

The CONTRACTOR will provide a bi-monthly report to the COUNTY’s wildlife biologist of all eastern indigo snake sightings. This report will contain the location (latitude and longitude), dates, times, prevailing environmental conditions, and the circumstances surrounding all sightings of

Section 00106 WEP- Page 12 of 12 eastern indigo snakes and the disposition of all eastern indigo snakes found. A site map with observation locations will also be included in this report. If no snakes are encountered, a report will be submitted indicating that fact.

PART 2 – PRODUCTS (NOT USED)

PART 4 – EXECUTION (NOT USED)

PART 4 – METHOD OF MEASUREMENT AND PAYMENT

This item is incidental to Mobilization/Demobilization and will be included in the Mobilization/Demobilization bid item. No measurement or separate payment shall be made for this item.

END OF SECTION

Section 00600 PCAEW- Page 1 of 5

SECTION 00600

PREVENTION, CONTROL, & ABATEMENT OF EROSION & WATER POLLUTION

PART 1 – GENERAL

1.01 DESCRIPTION OF REQUIREMENTS

A. The CONTRACTOR shall provide an erosion control plan for approval by the ENGINEER. The plan shall incorporate Best Management Practices in the use of erosion control methods, complete and in place prior to the start of construction, in accordance with the contract documents, and as directed by the ENGINEER.

B. Prevention, Control and abatement of erosion and water pollution shall conform to the Best Management Practices Plans, Best Management Practices Details, and this section and shall produce end results as required by the rules of the Department of Environmental Protection (FDEP) and other regulatory agencies having jurisdiction.

C. Prevention, control and abatement of erosion and water pollution shall be the responsibility of the CONTRACTOR and produce end results as required by the rules of the applicable Federal, State and County regulatory agencies having jurisdiction.

D. The CONTRACTOR is required to present his schedules for construction of the project at the preconstruction conference as required. This schedule shall include a complete outline for the proposed construction of any and/or all of the pollution responsible for the implementation of the schedule after approval by the COUNTY.

E. Where certain thresholds are met relative to the amount of area disturbed by the Work, a National Pollutant Discharge Elimination System (NPDES) permit will be required to be obtained by the CONTRACTOR, in accordance with the Contract Documents.

F. The CONTRACTOR shall prepare a Stormwater Pollution Prevention Plan (SWPPP) in accordance with Chapter 62-621, F.A.C. CONTRACTOR shall complete the necessary permit forms and pay the applicable fees for Notice of Intent and Notice of Termination, and comply with weekly inspection requirements as noted in the generic permit. The SWPPP shall be presented to the COUNTY at the preconstruction conference. The SWPPP shall conform to the guidelines contained in The Environmental Protection Agency “Storm Water Management for Construction Activities – Developing Pollution Prevention Plans and Best Management Practices – Summary Guidance”.

1.02 CONTRACTOR SUBMITTALS

A. Submittals shall be in Accordance with Specification Section 01300, Submittals.

Section 00600 PCAEW- Page 2 of 5

B. Product Data: Manufacturer’s catalog sheets on geo-textile fabrics.

PART 2 – PRODUCTS

This item of work may include staked silt fence, floating turbidity barrier, temporary retention/detention areas, and other methods, material, and equipment necessary for the prevention, control, and abatement of erosion and water pollution that could result from the construction activities.

Work shall also include all labor, preparation of a stormwater management plan, and all monitoring, record keeping or reporting required by the rules of the applicable State and County regulatory agencies having jurisdiction.

2.01 FABRIC

A. Fabric may be woven or non-woven, made from polypropylene, polyethylene, or polyamide, and shall contain sufficient UV inhibitors so that it will last for two years in outdoor exposure.

B. Fabric shall have the following properties:

Parameter Standard Method Value

Grab tensile strength

ASTM D4632, Standard Test Method for Grab Breaking Load and Elongation of Geotextiles

100 lb.

Burst strength

ASTM D 3786, Standard Test Method for Bursting Strength of Textile Fabrics- Diaphragm Bursting Strength Tester Method

200 psi

Apparent opening size

ASTM D4751, Standard Test Method for Determining Apparent Opening Size of a Geotextile between 200 and 70 sieve size

C. Fabric Manufacturer: Mirafi, or equal

2.02 POSTS

Posts shall be wood, at least 2”X2”, at least 6’ long.

Section 00600 PCAEW- Page 3 of 5

2.03 FENCING

Woven wire fabric fencing shall be galvanized, mesh spacing of 6”, maximum 14-gauge, at least 30” tall.

2.04 FASTENERS

Fasteners to wood posts shall be steel, at least 1 ½” long.

PART 3 – EXECUTION

3.01 PREPARATION

A. CONTRACTOR shall implement and maintain those measures necessary to prevent, control, and abate any erosion of the ground surface or shoreline banks caused by the work. The use of best management practices shall be used for this portion of the work.

B. The CONTRACTOR shall provide the ENGINEER with a detailed plan, including sketches and written description of the erosion control measures he/she plans to utilize for this project for review and approval. Any adjustments to the plan recommended by the ENGINEER shall be implemented by the CONTRACTOR.

C. The CONTRACTOR shall not commence clearing, grubbing, grading, dredging, or other construction activities which may cause erosion until the erosion control plan is in place and approved by the ENGINEER.

D. The CONTRACTOR shall maintain the approved stormwater management plan at the Jobsite. The CONTRACTOR shall regularly inspect, maintain, and repair or replace damaged components of the storm water management system, as required. The CONTRACTOR shall maintain the system until final acceptance. Any modification to the plan must be approved by the COUNTY. The plan shall incorporate best management practices in the use of erosion, sediment, and storm water control methods, be complete, and be in place prior to the start of construction as directed by the

COUNTY.

E. Once construction of the project has been completed and all disturbed areas stabilized, the CONTRACTOR shall remove all temporary erosion control facilities promptly.

F. Dust Abatement:

1. Dust abatement shall consist of applying, when ordered, water or dust palliative for abatement of dust nuisance originating within the project limits. The methods, materials, and procedures for dust abatement shall be subject to approval by the COUNTY. Dust abatement operations shall be performed by the CONTRACTOR at the time, location, and in the amount ordered by the COUNTY. Dust abatement operations shall be on-call for operation on a 12- hour per day, 7-day per week basis, as necessary.

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2. Water used for dust control shall be furnished and applied by means of vehicle mounted tanks equipped with suitable sprinkling devices and in the quantities ordered by the COUNTY. The water used for dust abatement may be obtained from any approved pond, lake, stream or municipal water system.

The water shall be free of excess silt, excess and harmful chemicals, acids, alkalis, or any substance which might be obnoxious to traffic or might be harmful to plant growth. Salt water shall not be used.

3. The vehicle for applying water for dust abatement shall be equipped with an approved metering device, installed at such a point on the vehicle as to measure the water at the time of its application. The vehicle may be equipped with a calibrated tank when approved by the

COUNTY.

3.02 INSTALLATION

A. The CONTRACTOR shall construct and install all temporary and permanent erosion and sedimentation control features as required at the project site and staging/stockpile area(s). Erosion and sediment control measures such as berms, dikes, drains, sediment traps, sedimentation basins, grassing, sodding, mulching, straw bales, and silt fences shall be properly installed and maintained until the completion of the work. Payment for this work shall be incidental to the bid item for which it is required.

B. Barrier systems shall be installed in such a manner that surface runoff will percolate through the system in sheet flow fashion and allow sediment to be retained and accumulated.

C. Attach the woven wire fencing to the posts that are spaced a maximum of 6’ apart and embedded a minimum of 12” deep. Install posts at a slight angle toward the source of the anticipated runoff.

D. Trench in the toe of the filter fabric barrier with a spade or mechanical trencher so that the downward face of the trench is flat and perpendicular to the direction of flow. Lay fabric along the edges of the trench; backfill and compact.

E. Securely fasten the fabric materials to the woven wire fencing with tie wires.

F. Reinforced fabric barrier shall have a height of 18”.

G. Provide the filter fabric in continuous rolls and cut to the length of the fence to minimize the use of joints. When joints are necessary, splice the fabric together only at a support post with a minimum 6” overlap and seal securely.

H. Provide temporary sod and grass areas where shown on the approved erosion control plan.

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3.03 MAINTENANCE

A. Remove sediment deposits when silt reaches a depth of 6” or half the height of the barrier, whichever is less. Dispose of sediments on the site, if a location is acceptable to the ENGINEER and COUNTY, or at a site arranged by the CONTRACTOR, and approved by the ENGINEER, which is not in or adjacent to a stream or floodplain.

B. Regularly inspect and repair or replace damaged components of the barrier. Unless otherwise directed, maintain the erosion control system until final acceptance; then remove the temporary erosion and sediment control systems promptly.

C. The CONTRACTOR shall maintain sodded and vegetated areas of the staging/dewatering site under a warranty period of six months beyond final acceptance of the project, or as otherwise agreed to, in writing, with the COUNTY. Replant areas as necessary and as directed by the COUNTY during the six-month maintenance period.

PART 4 –MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASUREMENT

The quantity to be paid for under this section shall be incidental to the work, excluding installation of silt fence and floating turbidity barrier which shall be paid by the linear foot, and included in the clearing, grubbing, excavation, filling and grading line item to furnish, install and maintain floating turbidity barrier and silt fence, or other material or equipment necessary for the prevention, control and abatement of water pollution, labor; preparation of a storm water pollution prevention plan; and all monitoring, record keeping or reporting required under the SWPPP or permit conditions as provided by law or specifically identified in the Contract.

4.02 BASIS OF PAYMENT

Payment for installation of silt fence and floating turbidity barrier is by the liner foot as specified on the Bid Form. Other items are incidental to the work and no measurement or separate payment shall be made for these items.

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SECTION 01026

MEASUREMENT AND PAYMENT

PART 1 – GENERAL

A. SCOPE OF WORK

B. Measurement and payment criteria applicable to the Work performed under lump sum and unit price payment methods.

C. List of unit price and lump sum pay items.

D. Schedule of value requirements for lump sum pay items.

E. Defect assessment and non-payment for rejected Work.

1.02 AUTHORITY

A. Measurement methods delineated in the individual specification sections are intended to complement the criteria of this section. In the event of conflict, the requirements of the individual specification section shall govern.

B. The CONTRACTOR, unless specified elsewhere shall take all measurements and compute final quantities, for final payment. The ENGINEER will verify measurements, quantities and Certified As- Builts.

1.03 UNIT QUANTITIES NOT SPECIFIED

A. Quantities and measurements indicated in the Bid Form are for bidding and contract purposes only.

Actual quantities are measurements supplied or placed in the Work are expected to vary and payment will be determined based on measurements obtained/verified by the ENGINEER.

B. If the actual Work requires more or fewer quantities than those quantities indicated, provide the required quantities at the bid unit prices.

1.04 MEASUREMENT OF QUANTITIES

A. Measurement Devices:

1. Weigh scales: inspected, tested, and certified by the applicable Florida Bureau of Weights and Measures Department within the prior year.

2. Platform scales: of sufficient size and capacity to accommodate the conveying vehicle.

3. Metering devices: inspected, tested, and certified by the applicable Florida Bureau of Weights and Measures Department within the past year.

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B. Measurement by volume: Measured by cubic dimension using mean length, width, and height or thickness.

1. Measurement and payment of excavations and fill placement will be limited to the lines and grades shown on the Drawings, or to the most practicable lines, grades and dimensions as established by the ENGINEER in writing. No measurement will be made of over excavation of over build beyond design lines and grades.

2. Quantities shall be measured based on CONTRACTOR’s survey taken before and after the work, unless otherwise noted by individual measurements and payment description. Quantities shall be computed, in accordance with the unit of measure shown on the Bid Form, to either the nearest cubic foot or nearest cubic yard. The volume of prismoids shall be computed using digital terrain modeling (DTM). All quantities shall be measured to the lines and grades shown on the Drawings unless otherwise specified.

C. Measurement by area: Measured by square dimension using mean length and width or radius. Items, which are measured by the acre square yard or similar units, such as revegetation, shall be measured horizontally, and for vertical features such as the cutoff walls, will be measured vertically.

D. Linear Measurement: Measured by linear dimension, at the item centerline or mean chord. Items which are measured by the lineal foot, such as pipe culverts, toe drains, fence, etc., shall be measured parallel to the base or foundations upon which the items are placed, unless otherwise specified in the plans or specifications.

E. Stipulated sum/price measurement: Items measured by weight, volume, area, or linear means or combination, as appropriate, as completed items or units of the Work.

F. Lump sum items shall not be measured for payment. However, measurements may be made to monitor work progress.

1.05 MEASUREMENT AND PAYMENT

A. Payment includes: Full compensation for furnishing all work required, including all labor, materials, products, tools, equipment, plant, transportation, services, incidentals, erection, applicable or installation of an item of the Work; and all other costs of whatsoever nature for the items of work complete and in place, will be included in the prices for the various bid items; overhead and profit.

B. Final payment for Work governed by unit prices will be made on the basis of the actual measurements and quantities accepted by the ENGINEER multiplied by the unit price for Work which is incorporated in or made necessary by the Work.

C. Measurement and payment for Bid Items listed in Bid Form shall be as defined in the following paragraphs:

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Bid Item 1: Mobilization/Demobilization: Includes mobilization of all personnel, equipment, and temporary construction facilities to the project site and their subsequent demobilization, providing temporary utilities; pre and post construction photographs and video, monthly progress construction photographs or drone video, wildlife protection and education, preparing and updating detailed construction schedules, site access control during the duration of the Construction Contract, all required permits, all project specific overhead, costs of bonds, and insurance. If contractor elects to use drones, they shall adhere to the current Sarasota County drone use policy (FAA licensing and insurance). All Work for this item will be in accordance with Section 01505 and Section 01700.

The cost of all work, unless specifically covered in other bid items, will not be paid separately, but shall be included in the price for Bid Item 1. No measurement for payment will be made for this item.

Payment for this item will be based on percent of completion of the lump sum unit price in the Bid Form. Payment for mobilization will be made at such time when the CONTRACTOR has completed mobilization and will not exceed 75% of the Schedule of Values item for Mobilization/Demobilization. Payment for demobilization will be made at such time when the CONTRACTOR has completed demobilization.

Bid Item 2: Survey: The CONTRACTOR shall employ a professional land surveyor licensed in the State of Florida, for construction stakeout for the project as indicated on drawings and specified in Section 01051 and to layout the work from the benchmarks, grades, dimensions, points, and lines noted on the working drawings, established at the site or supplied by the COUNTY. Pre and postconstruction survey shall be furnished by the CONTRACTOR’s surveyor for the purposes of calculating earthwork volume and other quantities. Intermediate survey will be provided by the CONTRACTOR’s surveyor for each pay application to verify quantities of completed work.

Payment for this…