Addendum One .pdf

COMMONWEALTH OF KENTUCKY

DEPARTMENT FOR FACILITIES AND SUPPORT SERVICES

DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION

INVITATION TO BID NO: RFB-45-24

FOR: Sam Wright- Phase II

AML Project Letcher County, Kentucky

DATE: August 29, 2023

ADDENDUM NO. One (1)

BIDDER SHALL CONFORM TO THE FOLLOWING CHANGES AS SAME SHALL BECOME BINDING

UPON THE CONTRACT TO BE ISSUED IN RESPONSE TO THIS INVITATION TO BID.

Item 1: Must use REVISED BID SCHEDULE in lieu of previously issued.

Item 2: Revised COR Documents.

END OF ADDENDUM

Invitation to Bid No. RFB-45-24 For: Sam Wright- Phase II

AML Project Letcher County, Kentucky

Susan Ward, Statewide Procurement Analyst II Division of Engineering and Contract Administration

NO. ITEM M.O.P. UNIT QUANTITY * Low APL UNIT PRICE TOTAL

1 MOBILIZATION L.S. L.S. 1 X NA ≤ NA = 12,500.00$

2 UTILITY RELOCATION/REPLACEMENT A.C.U. A.C.U. 1 X NA ≤ 250.00$ = 250.00$

3 60 KSI REINFORCING STEEL U.P. LBS 3,200 X $0.75 ≤ $ = $

4 CONCRETE- FORMED & FINISHED U.P. CY 40 X $200.00 ≤ $ = $

5 SILT BARRIER - BALES & FENCE U.P. LF 400 X $1.00 ≤ $ = $

6 EARTHWORK (PLAN QUANTITY) P.Q. CY 500 X $4.00 ≤ $ = $

7 CLASS II / III BACKFILL U.P. TON 550 X $20.00 ≤ $ = $

8 SUBDRAIN U.P. LF 200 X $15.00 ≤ $ = $

9 RESIDENTIAL SEEDING U.P. ACRE 1 X $500.00 ≤ $ = $

10 DENSE GRADE AGGREGATE U.P. TON 50 X $20.00 ≤ $ = $

11 ROADWAY STONE U.P. TON 100 X $20.00 ≤ $ = $

12 BITUMINOUS REPAIR U.P. TON 150 X $90.00 ≤ $ = $

13 STRUCTURE REMOVAL & DISPOSAL L.S. L.S. 1.0 X $1,000.00 ≤ N/A = $

BID TOTAL = $

23049AMLBAML SAM WRIGHT PHASE II (AML) RECLAMATION PROJECT

LETCHER COUNTY, KENTUCKY

BID SCHEDULE

NOTE: THE AUTHENTICATION OF BID AND STATEMENT OF NON-COLLUSION AND NON-CONFLICT OF INTEREST PAGE MUST BE PROPERLY EXECUTED FOR THE TOTAL BID

AMOUNT TO BE VALID.

* Any Unit Price outside the Allowable Price Limit (APL) range may be considered an unbalanced bid and may have to be justified in writing if such bid is deemed the low responsive bid.

REVISED BID SCHEDULE RFB-45-24

Revised 5/10/2023

COR & BID & BMP 1

23049AMLBAML SAM WRIGHT PHASE II (AML) RECLAMATION PROJECT

LETCHER COUNTY, KENTUCKY

Written Location Directions: From the Whitesburg, at the intersection of highway 15 and highway 119;

travel east approximately 3.0 miles on highway 119 until reaching highway 1862. Turn left onto highway

1862, travel 0.15 miles until reaching Book Drive. Turn on Book Drive, and travel 300 feet, which is the center of the reclamation site.

Basic Project Description: The Sam Wright Phase II AML Reclamation Project, with project limits boundaries enclosing approximately 1.0 acres, will create up to approximately 0.5 acre of disturbance.

This project will address additional work needed after the completion of the first project. The waste area as designed has some movement. Abatement will be to construct a Class III Rock Toe Buttress to stabilize the old waste area. Also proposed is a concrete ditch that will carry surface water off the slide area and stabilize the hillside. Bituminous Pavement is proposed under this Phase II, as the first project no pavement was placed due to the anticipated Phase II project. This is a replace in kind due to the damage to the pavement under normal reclamation activities. Both Dense Grade Aggregate and

Roadway Stone are included as needed for proper access.

A. STANDARD DOCUMENTS

The AML Standard Details, Technical Specifications, and Bid Item Descriptions are posted on the

Division’s website at https://eec.ky.gov/Natural-Resources/Mining/Abandoned-Mine-

Lands/Pages/default.aspx

Once on the web page, please click “Contractor Information” tab located on the right side. AML standard technical specification and detail are located under this tab. Contractors are strongly encouraged to review the complete AML website for additional information.

B. ALLOWABLE PRICE LIMIT

Allowable Price Limit (APL) is part of the contract documents and is stated on the Bid Schedule. The

Unit Price (UP) / Lump Sum Price (LS) has a low value defined for each item on the Bid Schedule. Any

Unit Price / Lump Sum Price outside this value may be considered an unbalanced bid and may have to be justified in writing if such bid is deemed the low responsive bid. The CONTRACTOR is also cautioned that other considerations for rejection, notwithstanding the APL, may be enforced (e.g.

total bid price being excessively over the ENGINEER’S ESTIMATE).

C. CONTRACT LENGTH

All work shall be completed within FORTY FIVE (45) calendar days from the effective date of the

Award of Contract. Within the bounds of prudent project performance, it shall be the responsibility of the

CONTRACTOR to plan and implement construction sequences which follow the intent of these

CONTRACT DOCUMENTS, particularly as, reflected in the Drawings and Special Conditions and to protect any portion of the contract which may be completed before others.

D. CONTRACTOR’S INFORMATION SHEET

https://eec.ky.gov/Natural-Resources/Mining/Abandoned-Mine-Lands/Pages/default.aspx https://eec.ky.gov/Natural-Resources/Mining/Abandoned-Mine-Lands/Pages/default.aspx

COR & BID & BMP 2

The AML CONTRACTOR/SUBCONTRACTOR INFORMATION FORM sheet must be filled out and submitted with the bid. Failure to submit the AML Contractor/SubContractor Information Form sheet with the bid will be the basis for declaring the bid “Non-Responsive”

E. SPECIAL CONDITIONS & PROJECT NOTES

- On occasion, a property owner may require a CONTRACTOR to add them on their General

Liability and/or Automobile Insurance as an “Additional Insured.” AML will inform the

CONTRACTOR when this requirement is being made by the property owner. In these cases, the

CONTRACTOR must submit to AML copies of their certificate of insurance documenting the

“Additional Insured” before they will be allowed to mobilize equipment and forces on to said properties. Any fees, rate increases, or other costs incurred by the CONTRACTOR for this requirement, if any, will be considered incidental to mobilization and as such no compensation will be made by AML. The “Additional Insured” must remain on the CONTRACTOR’s policy(s) for the full length of the contract.

- Add any special conditions, notes, exceptions to standard documents or write “None”.

- Add Bid Item descriptions that are contrary to standards notes.

F. PERMITS & FEES – AML will be responsible for obtaining any permits that are checked below.

(check all that apply)

☐KYTC Encroachment Permit

☐KY DOW Water Permits

☐USACE Permit

The CONTRACTOR is responsible for all other permits and/or fees necessary to begin the project. The

CONTRACTOR is advised that on occasion, other permits and/or fees may be required by federal, state, and local government(s). Other types of permits and/or fees are not the responsibility of AML and as such, these will be the complete and total responsibility of the CONTRACTOR to obtain. These must be obtained before AML will allow mobilization of equipment and forces on to said properties. All costs associated with other permits or fees will be the responsibility of the CONTRACTOR. Please refer to

“General Provisions” in the AML Technical Specifications.

COR & BID & BMP 3

BID ITEM DESCRIPTION

23049AMLBAML SAM WRIGHT PHASE II AML RECLAMATION PROJECT

LETCHER COUNTY, KENTUCKY

NO ITEM DESCRIPTION

1. MOBILIZATION This item consists of the mobilization and demobilization of the

CONTRACTOR’S forces and equipment in accordance with the

“Mobilization/Demobilization” AML Standard Technical Specification. The lump sum bid price is as stated on the bid schedule.

Measurement: Not Applicable.

Payment: Payment shall be made at increments set in the AML Technical

Specifications totaling the Lump Sum price.

2. UTILITY

RELOCATION /

REPLACEMENT

This consists of furnishing all materials, equipment, and labor necessary to replace utilities damaged by construction or relocate any utilities that are in the construction area in accordance with the “Utility Relocation” AML Standard

Technical Specification. The CONTRACTOR is required to supply the

ENGINEER with all documentation to support cost incurred to qualify for reimbursement.

Special Considerations: None

Major Incidentals: These will be listed in writing by the ENGINEER prior to beginning the work.

Measurement: Not Applicable.

Payment: Payment shall be made for Actual Documented Costs for

“UTILITY RELOCATION/REPLACEMENT” approved by the

ENGINEER. The payment shall be a direct reimbursement for actual documented costs to the CONTRACTOR in accordance with the “General

Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, and incidentals.

COR & BID & BMP 4

3. 60-KSI

REINFORCING

STEEL

This item consists of furnishing all materials, equipment, and labor necessary to properly installing 60 KSI reinforcing steel of various diameters and lengths as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Concrete” and “Steel” AML Standard Technical Specifications.

This bid item covers steel used for: reinforcement in concrete ditches (all types), footers, retaining walls, concrete piles & cap reinforcement, anchors, Special Considerations: See AML Technical Specification for overlap Steel

Item 2.2.6.

No splicing shall be permitted for length of steel less than 10 feet in length.

Splicing of lengths between 10 feet and 20 feet is allowed. No lengths less than

4 feet is allowed including the overlap.

For lengths greater than 20 feet splicing is allowed. Minimum length of steel shall be 10 foot including overlap.

Maximum of 10 % payment for overlap steel.

Major Incidentals: Coatings, excess steel, connections, cut-offs, testing, and waste materials

Measurement: Actual Quantities shall be measured as pounds of reinforcing steel placed and accepted by the ENGINEER. Actual Quantities may be obtained by using a CRSI chart that shows lbs/lf for each size bar and multiplying the length of each bar used.

Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “60-KSI REINFORCING STEEL” in accordance with the “General Provisions” AML Standard Technical Specification. Such payment as specified shall constitute full compensation for all labor, materials, equipment, and incidentals.

4. CONCRETE-

FORMED &

FINISHED

This item consists of furnishing all materials, equipment, and labor necessary to construct concrete field cast items as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Concrete” AML Standard

Technical Specification. This bid item covers concrete used for: concrete ditches (all types), retaining walls (all types), footers, caps, and any other purpose that requires formwork and/or finishing. All formwork, no matter the size/scale or changes are incidental, including increases in heights of walls.

Special Considerations: Excavation and Transportation of materials to construct the ditch (including Class II backfill void) will be considered incidental to this work effort.

Inspector Notes: Collect manufacturer certificates for each unit.

Major Incidentals: Formwork (including height/width increases), excavation, admixtures, finishing, materials testing.

Measurement: Actual Quantities shall be measured as the next whole cubic yard installed and accepted by the ENGINEER.

Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price for “CONCRETE- FORMED & FINISHED” in accordance with the “General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and incidentals.

COR & BID & BMP 5

5. SILT BARRIER–

BALES & FENCE

This item consists of furnishing all materials, equipment, and labor necessary to maintain silt control as depicted on the Drawings, AML Standard Details, and as directed by the ENGINEER in accordance with the “Silt Control” AML

Standard Technical Specification. Hay/straw bales shall be placed with an overlap equal to 0.4 bales per linear foot of silt control fencing. Silt fence shall be trenched and removed at the end of the project. Failure to remove silt control fence (geotextile fabrics) shall result in forfeiture of demobilization.

Special Considerations: None

Major Incidentals: Maintenance, silt fence trenching and removal

Measurement: Actual Quantities shall be measured as the next whole linear foot installed and accepted by the ENGINEER.

Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “SILT BARRIER - BALES & FENCE" in accordance with the “General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for materials, equipment, labor, and incidentals.

6. EARTHWORK

(PLAN QUANTITY)

This item consist of furnishing all materials, equipment, and labor necessary to accomplish the required excavation of material to the lines and grades as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Earthwork” AML Standard Technical Specification.

Special Considerations: None

Major Incidentals: Excavation, transportation, placement, compaction of all excavated materials including rock ditches constructed without hoe ram.

Measurement: No measurements will be made unless the ENGINEER significantly revises the dimensions of the work area(s).

Payment: Payment shall be the product of the Plan Quantity Volume

(Excavation) and the Unit Price bid for “EARTHWORK” in accordance with the “General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and other items necessary to complete the work—this includes all transportation and gradework efforts associated with designated waste areas.

COR & BID & BMP 6

7. CLASS II BACKFILL This item consists of furnishing all materials, equipment, and labor necessary to place Class II aggregate as depicted on the Drawings and as directed by the

ENGINEER in accordance with the “Crushed Aggregate and Channel Lining”

AML Standard Technical Specification.

Special Considerations: FILTER FABRIC PLACEMENT IS

CONSIDERED INCIDENTIAL; NO SEPARATE PAYMENT WILL BE

MADE FOR FILTER FABRIC.

Measurement: Actual Quantities shall be measured based on weigh tickets supplied to the ENGINEER as ton(s) of each type of aggregate installed and accepted by the ENGINEER.

Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “CLASS II BACKFILL" in accordance with the “General constitute full compensation for all labor, materials, equipment, and incidentals.

8. SUBDRAIN This item of work shall consist of furnishing all materials, equipment, and labor necessary to install subsurface drains as depicted on the Drawings, AML

Standard Details, and as directed by the ENGINEER in accordance with the

“Crushed Aggregate and Channel Lining”, “Filter Fabric”, and “Subsurface

Drains” AML Standard Technical Specifications.

Special Considerations: None

Major Incidentals: Excavation to depth of 3’, pipe, filter fabric, aggregate backfill to depth of 3’.

Measurement: Actual Quantities shall be measured as the next whole linear foot installed and accepted by the ENGINEER. Subdrains requiring more than the incidental quantity of rock will be paid from the No. 2 Stone bid item or

Roadway Stone if a No. 2 Stone bid item is not listed. All excavation is incidental to the earthwork.

Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “SUBDRAIN” in accordance with the “General

COR & BID & BMP 7

9. RESIDENTIAL

SEEDING

This item shall consist of furnishing all materials, equipment, and labor for the purpose of revegetation of the disturbed areas as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Revegetation” AML

Standard Technical Specification.

Special Considerations: None

Major Incidentals: Seedbed preparation, agriculture limestone, fertilizer, seed, and mulch

Measurement: Actual Quantities shall be measurement as the next tenth of an acre seeded as approved by the ENGINEER.

Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “RESIDENTIAL SEEDING” in accordance with the

“General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and incidentals.

10. DENSE GRADE

AGGREGATE

This item shall consist of furnishing all materials, equipment, and labor necessary to place, and compact dense grade aggregate (DGA) as depicted on the Drawings and as directed by the ENGINEER in accordance with “Crushed

Aggregate and Channel Lining” AML Standard Technical Specification.

Special Considerations: This item is for temporary paved roadway repairs and base preparation prior to bituminous repair. DGA for pipe backfill is incidental to the pipe.

Measurement: Actual Quantities shall be measured based on weigh tickets supplied to the ENGINEER as ton(s) of aggregate installed and accepted by the

ENGINEER.

Payment: Payment shall be the product of the Actual Accepted Quantities and

Unit Price bid for "DENSE GRADE AGGREGATE FOR ROADWAYS” in accordance with the “General Provisions” AML Standard Technical

Specification. Such payment shall constitute full compensation for all labor, equipment, materials, and incidentals.

11. ROADWAY STONE This item shall consist furnishing all materials, equipment, and labor necessary to place and compact as necessary the various gradations of stone as depicted on the Drawings and as directed by the ENGINEER in accordance with the

“Crushed Aggregate and Channel Lining” AML Standard Technical

Specification.

Special Considerations: None

Measurement: Actual Quantities shall be measured based on weigh tickets supplied to the ENGINEER as ton(s) of each type of channel lining, and/or aggregate installed and accepted by the ENGINEER.

Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “ROADWAY STONE” in accordance with the “General

COR & BID & BMP 8

12. BITUMINOUS

REPAIR

This item shall consist of furnishing all materials, equipment, and labor necessary to repair bituminous surfaces damaged by construction activities as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Bituminous Repair” AML Standard Technical Specification.

Removal and disposal of old materials are covered under the site preparation bid item.

Special Considerations: None

Major Incidentals: DGA, subgrade preparations, materials, placement

Measurement: Actual Quantities shall be measured based on weigh tickets supplied to the ENGINEER as ton(s) of bituminous placed and accepted by the

ENGINEER.

Payment: Payment shall be the product of the Actual Accepted Quantities and

Unit Price bid for “BITUMINOUS REPAIR” in accordance with the “General

13. STRUCTURE

REMOVAL &

DISPOSAL

This item represents the ENGINEER'S best estimate of removal/replacement cost of designated qualifying structural features “in kind” to facilitate normal construction activities as depicted on the Drawings and as directed by the

ENGINEER in accordance with the “Structure Removal / Replacement” AML

Standard Technical Specification. The CONTRACTOR is required to supply the ENGINEER with all documentation to support cost incurred to qualify for reimbursement. The metal structure dimensions are approximately 10’x12’ by height.

Special Considerations: There is NO replacement of this structure; only demolition and proper off-site disposal (see technical specifications.) Some of the contents in the structure the owner may wish to keep. The OWNER with AML representative present will identify these items; these will be set aside on the property. The rest of the contents will be properly disposed of along with the structure.

Inspector Notes: Inventory of structures, pictures, and dimensions, before construction starts. Any structures that are removed shall be accompanied by pictures.

Major Incidentals: Equipment, Transportation, Labor, and Disposal Fees.

Measurement: None

Payment: Payment shall be lump sum price bid for “STRUCTURE

REMOVAL & DISPOSAL” approved IN ADVANCE by the ENGINEER.

Such payment shall constitute full compensation for all labor, equipment, materials, and incidentals.

Erosion and Sediment Control

COR & BID & BMP 9

Best Management Practices (BMP) Plan

January 2017

COR & BID & BMP 10

OVERVIEW

This Best Management Practices (BMP) plan is a guide for Kentucky Division of Abandoned

Mine Lands (DAML) projects. It contains information regarding preventing, reducing and controlling erosion, sediment, and pollutant runoff from Abandoned Mine Land (AML)

Reclamation and Acid Mine Drainage (AMD) Abatement project construction sites. The information in this BMP will aid DAML staff and contractors in selecting, installing, and maintaining erosion prevention and sediment control measures during the different stages of construction. This BMP plan, in accordance with DAML Technical Specifications and Standard

Drawings, is intended to protect Kentucky’s streams from potential water quality impacts resulting from DAML projects.

This general BMP document is to outline the various pollution prevention measures used on

AML Reclamation or AMD Abatement Projects. The primary sources of pollutants are solids mobilized during storm events and precipitants from mineralized mine drainage. Other sources of pollutants include oil/fuel/grease from servicing and operating construction equipment, concrete washout water, sanitary wastes, and trash/debris.

EROSION PREVENTION AND SEDIMENT CONTROL MEASURES

Plans for Reclamation and AMD abatement construction projects will include erosion control measures on the planview sheets when possible, and will depict Disturbed Drainage Areas

(DDAs) and related information. The construction notes and project description may describe other control measures. The Contractor and Engineer may select an additional BMP for the project as the project changes and construction progresses. Projects that do not have DDAs annotated in the plans will employ the same concepts selecting and implementing this general

BMP plan.

Address disturbed areas or sources of sediments by the most effective means in the specific work area. Direct non-storm water discharges to sediment basins/traps or to a filter fence enclosure in a flat vegetated infiltration area or filtered via another approved commercial product. All deep mine and surface impoundment water will be tested and treated, when as necessary, to meet the

DAML Water-Treatment and Disposal Technical Specification unless stricter limitations are listed in an existing Total Daily Maximum Load (TMDL) limit.

PERMITS

The DAML shall review each project during project development to determine whether any permits are required to implement the project work. When a permit is required, DAML will make every effort to obtain the permit prior to letting the project for bidding. Permit specific conditions shall trump any standard conditions and/or practices. All permits must be maintained onsite and produced when requested by regulatory authorizes inducing representative of the permitting authority.

Common permits types for DAML projects:

COR & BID & BMP 11

• 401 Water Quality Certification (WQC) o Issued by the KY Division of Water

• 402 KY Pollution Discharge Elimination System (KPDES) o DAML activities are covered under the AML KPDES General Permit

• 404 US Army Corps of Engineers (USACE) o Issued by the US Army Corps of Engineers- Nashville District, Louisville District, or Huntington District (Depending upon major drainage basin)

• KY Stream Construction (Floodplain) o Issued by the KY Division of Water

• Local Floodplain Permit o Issued by the County/Municipality

• Local Storm Water Construction o Issued by the County/Municipality

A) Field Review Walk-Thru:

The DAML will conduct a project review between the Project Engineer, Construction Branch

Personnel, Project Design Technician, and Field Office Staff, to review the construction plans and identify any changes needed prior to letting the project for bidding. The group will evaluate the locations and types of site specific BMP and any other erosion prevention and sediment control measures chosen for incorporation into the final design plans.

B) Site Visit Meeting

DAML will present the project specific BMP and permit requirements/conditions to the potential contractors during the site visit meeting.

C) Pre-Construction Conference

Prior to the actual beginning of the project, DAML will hold a pre-construction conference between representatives of the DAML, the Contractor, including any Subcontractors, as well as other interested agencies and parties. Items discussed will include the time and sequence for construction, planned methods of operation, payment, and other relevant questions including any permit requirements and the erosion and sediment control plan.

D) Construction Access

This is the first land-disturbing activity. Construction entrances shall be a minimum of twenty

(20) feet wide by fifty (50) feet long, measured from the shoulder of the public road, and consist of No. 2 aggregate over a heavy weight non-woven filter fabric base. As soon as construction begins, stabilize bare areas with gravel and temporary mulch and/or vegetation.

E) Clearing and Grubbing

Use the following techniques for clearing and grubbing activities:

COR & BID & BMP 12

1) Leave areas undisturbed when possible.

2) Construct silt basins to provide silt volume for large areas.

3) Construct Silt Trap(s) Type A for small areas.

4) Construct Type B silt traps for areas with rapid runoff and sediment-laden runoff.

5) All silt traps should have a 3:1 flow length to width ratio. Add spreader bars, baffles, or turbidity curtains to maintain the flow path ratio when site conditions require traps sizes smaller than the standard detail dimensions.

6) Install geotextile bags and/or rock checks in front of existing drop inlets.

7) Construct diversion ditches to catch sheet runoff and carry it to basins or traps or to divert it around areas to be disturbed.

8) Maintain brush and/or other barriers to slow and/or divert runoff.

9) Construct silt fences/hay bales to catch sheet runoff on short slopes. For longer slopes, multiple rows of silt fence/hay bales may be considered.

10) Apply temporarily mulch to area not actively being disturbed or for any area left undisturbed for fourteen (14) days.

11) Employ non-standard or innovative methods.

F) Stream Crossings / Work Along Streams

1) Temporary low-water stream crossings follow the guidelines included in the DAML

Technical Specifications and those established by the KY Division of Water Floodplain

Management Section. Removal of a temporary crossing may be required to accommodate large storm events.

2) Do not completely block stream flow (even temporary). Instead, utilize some form of pass thru mechanism during all AML projects.

3) Work within a stream channel shall not cause flooding of properties upstream, downstream or within the project area or cause downstream water quality degradation. Minimize equipment contact time with the stream water by diverting water around equipment working in or along streams.

4) No flowing water will interact with any uncured concrete placed in the stream channel.

5) Divert all stream water around the work areas in accordance to methods listed in the DAML

Stream Protection & Relocation technical specification, AML Standard Details Section 60, and as by the appropriate permit guidelines.

6) Temporary out of channel stream diversion must use one of the three approved methods:

pipe diversion, sandbag/stone channel diversion, and/or fabric-based channel diversion.

Do not construct any temporarily diverted channel on bare, erodible soil. No temporary diversion shall be permanent without a 401, 404, and other appropriate permits.

COR & BID & BMP 13

G) Deep Mine and Surface Water Impoundments

The DAML Resident Inspector will test the mine water from deep mines and surface impoundments on the project area to determine the pH and total iron content. Treat the water until it meets the DAML Water-Treatment and Disposal Technical Specification or an existing TMDL, whichever is stricter, before release through a silt control structure(s).

Monitoring & Recording

The DAML Inspector will maintain a log of the pH and total iron content results prior to releasing and during each release day. Perform a minimum of two (2) tests downstream each day to ensure the maintenance of water quality during release and is not degrading the receiving stream.

Types of structures/facilities include:

1) Silt Traps Type A (20’L x 5’W x 2’D min dugout)

2) Silt Traps Type B (20’L x 5’W x 2’D min dugout with rock berm)

3) Silt Check - Rock checks with filter fabric core lining installed in channels and in front of pipes

4) Temporary silt control fence with Class II filter berm

5) Sediment collection bags

H) Cut and Fill and Placement of Drainage Structures

Areas at final grade will be seeded and mulched within five (5) days. Soil stock piles and areas that are not at final grade but where construction will cease for a period of fourteen (14) days or longer, shall receive temporary mulch no later than fourteen (14) days from the last construction activity in that area.

Types of structures/facilities include:

1) Silt Traps Type B (20’L x 5’W x 2’D min dugout with rock berm)

2) Silt Checks - Bags in front of pipes after they are placed

3) Channel lining

4) Erosion control blanket

5) Temporary mulch and/or seeding for areas where construction activities will be ceased for

14 days or more

6) Non-standard or innovative methods

I) Temporary Shutdown

Items to be completed prior to shutdown include:

1) Clean out behind, repair or replace silt fence and/or hay bales

2) Clean out all silt traps

COR & BID & BMP 14

3) Apply temporary mulch and track into the soil

4) Sow cover crop (weather permitting)

J) Finish Work

1) Establish permanent seeding and protection

2) Remove non-permanent silt checks from ditches and drains if protected with other BMPs sufficient to control erosion and vegetation is established.

3) Remove non-permanent silt traps and basins.

4) Remove geotextile silt fence.

5) Planting trees and/or shrubs where they are included in the project.

6) Clean out behind, repair, and/or replace bale silt barriers

7) Clean out all permanent silt traps and basins

K) Post-Construction

The Contractor shall assume responsibility for all workmanship and materials for a period of one year from the date of final payment, as directed by the Contract Documents. Any work found to be defective due to failure to comply with the provisions and intent of the Contract Documents shall be corrected at the Contractor's expense. Problems determined not to be created by the landowner or due to the Contractor will be addressed by the DAML for a period of up to three years, pending available funding.

OTHER CONTROL MEASURES

L) Solid Materials

No solid materials, including rock and building materials, shall be discharged into waters of the

U.S. except as authorized by the Clean Water Act (CWA) Section 401 and Section 404 permits.

M) Waste Materials

Collect and store waste materials that may leach pollutants (paint and paint containers, caulk tubes, oil/grease containers, liquids of any kind, soluble materials, etc.) in appropriate covered waste containers. Remove waste containers from the project site frequently as to not allow wastes to become a source of pollution. Instruct all personnel regarding the correct procedure for waste disposal and dispose of wastes in accordance with appropriate regulations.

N) Hazardous Waste

Manage and dispose of hazardous waste materials in the manner specified by local or state regulation. Notify the Resident Inspector if there are any hazardous wastes generated, and provide a plan for the management and disposal of such materials. Instruct site personnel with regard to proper storage and handling of hazardous wastes when required and use the practices to reduce the risks associated with all hazardous materials. Keep products in original containers

COR & BID & BMP 15

unless they are not re-sealable with the original labels and material safety data sheets (MSDS) will be reviewed and retained.

O) Spill Prevention

Use good housekeeping and material management practices to reduce the risk of spills or other exposure of materials and substances to the weather and/or runoff. Manufacturers' recommended methods for spill cleanup will be maintained on site and readily available upon request. Make personnel aware of procedures and the location of the information and cleanup supplies.

Equipment and materials will include as appropriate, brooms, dust pans, mops, rags, gloves, oil absorbents, sand, sawdust, and plastic and metal trash containers.

Clean up all spills immediately after discovery. Keep the spill area well ventilated. Personnel will wear appropriate protective clothing to prevent injury from contract with a hazardous substance. Report spills of toxic or hazardous material to the appropriate state/local agency as required by KRS 224 and applicable federal law. Wastes from spill cleanup will be disposed of in accordance with appropriate regulations. The spill prevention plan will be adjusted, as needed, to prevent spills from reoccurring and improve spill response and cleanup.

P) Petroleum Products

Monitor vehicles and equipment fueled and maintained on site for leaks, and receive regular preventative maintenance to reduce the chance of leakage. Protect petroleum products onsite will be stored in tightly sealed, clearly labeled containers from exposure to weather. The

CONTRACTOR shall not have a total of over 1,300 gallons of petroleum products on site at any given time.

Q) Fertilizers

Store fertilizers in a covered area away from water. Transfer the contents of any partially used bag of fertilizer to a sealable plastic bin to avoid spills. Once applied, work into the soil and apply mulch to limit exposure to storm water.

R) Concrete Truck Washout

Concrete truck mixers and chutes will not be washed on pavement, near storm drain inlets, or within seventy (75) feet of any ditch, stream, wetland, lake, or sinkhole. Where possible, discharge excess concrete and wash water to areas prepared for pouring new concrete, flat areas to be paved that are away from ditches or drainage system features, or other locations that will not drain off site. Where this approach is not possible, excavate a shallow earthen washbasin away from ditches to receive the wash water.

INSPECTIONS

Use inspection and maintenance practices to maintain erosion and sediment controls:

COR & BID & BMP 16

1) The Contractor and DAML Resident Inspector will inspect all erosion prevention and sediment control measures at least once each week and following any rain of 0.1 inch or more.

2) The DAML Resident Inspector will record the silt control inspections by in their daily report.

3) Silt fences/hay bales will be inspected for bypassing, overtopping, undercutting, depth of sediment, tears, and to ensure attachment to secure posts.

4) Inspect silt traps and basins for depth of sediment, and built-up sediment and clean out when it reaches 50% of the design capacity and at the end of the job.

5) Inspect diversion dikes and berms and promptly repaired any breaches. Repair areas that are eroding or scouring and re-seeded / mulched as needed.

6) Inspect temporary and permanent seeding and mulching for bare spots, washouts, and healthy growth. Repair bare or eroded areas as needed.

7) Inspect all material storage and equipment servicing areas that involve the management of bulk liquids fuels and bulk solids weekly for conditions that represent a release or possible release of pollutants to the environment.

MAINTENANCE

Maintain all measures in good working order; initiate corrective actions within twenty-four (24) hours of being reported and completed with five (5) days, address critical failures immediately unless site conditions are too dangerous. Remove Built-up sediment from behind the silt fence/hay bales before it has reached halfway up the height of the fence.

ENFORCEMENT

At all times, representatives from DAML and enforcement agencies will have access to the project site. The ENGINEER reserves right to stop work until erosion prevention and sediment control problems are addressed to his/her satisfaction.