PROJECT MANUAL

New Sand Mound Septic System

Newtowne Neck State Park

St. Mary’s County

Project Number: P-078-160-010

April 1, 2025

For the State of Maryland Department of Natural Resources

Engineering and Construction Division Josh Kurtz, Department Secretary

State of Maryland Board of Public Works Wes Moore, Governor

Brooke E. Lierman, Comptroller Dereck E. Davis, Treasurer

TABLE OF CONTENTS

I. Detailed Specifications

A. Scope B. Qualifications of the Contractor C. Site Inspection D. Schedule of Work E. Standards and Codes F. Materials and Supplies G. Method of Work H. General Requirements I. Warranty and Guarantee J. Method of Payment

II. Alternates, Unit Prices, and Allowances III. Drawings & Attachments

I. DETAILED SPECIFICATIONS

A. SCOPE:

1. This project consists of the Contractor providing all labor, equipment, materials, supplies, insurance, etc., necessary to abandon two septic tanks and drainfields and install a new BAT Sand Mound Septic System at 21308 Newtowne Neck Road, Leonardtown, St. Mary’s County, MD 20650.

2. The proposed project shall include, but is not limited to the following:

a. Review the approved MDE Erosion and Sediment Control permit (attached). Install the required Stabilized Construction Entrance (SCE) and Silt Fence (SF) in the locations identified on the permit. Identified Staging and Stockpile Area must be created and used during construction.

b. Notify the St. Mary’s County Health Department prior to starting construction to coordinate necessary inspections and reviews.

c. Excavate for and install new BAT tank and pump chamber with pump in the location identified on the Septic Permit (rear of the house).

d. A Service Pro Electrical Control is to be mounted in a NEMA Rated

Enclosure for outdoor use near the rear of the house. Electric for pump chamber shall be connected to panel inside of the Russel House.

e. Excavate for and install approximately 400’ LF of new 3” PVC force main from new pump chamber to location of new sand mound drainage. New line shall be installed with marking tape.

f. Excavate for and install new sand mound system as identified on the

Septic Permit. Connect new sand mound to new waste line.

g. Excavate for and install a new septic tank and pump chamber with pump in the rear of the block shop building as shown on the Septic Permit as “Alternate #1”. This work is included in this projects Base Bid and is not an alternate. Electric for pump chamber shall be connected to panel inside of shop building.

h. Excavate for and install a new 1.5” HDPE drain line from new shop pump chamber to waste line existing the Russel House, approximately 350’ LF.

Connection to be made between Russel House and septic tank. Where line goes under roadway, a 3” PVC sleeve shall be installed, approximately 80’ LF. New line shall be installed with marking tape.

i. Cap new PVC line directly behind the block shop. A new bathroom will be constructed inside the building in an upcoming project. Ensure line is sealed and will not allow infiltration into the new septic system.

j. Properly remove existing waste lines inside the Russel house. Install new waste pipe in the crawlspace to ensure all effluent exits in a single line to the new septic system.

k. Test new septic systems for proper operation.

l. Arrange for St. Mary’s County Sanitarian to inspect new systems.

m. Properly pump, abandon, and cap two existing septic tanks adjacent to the

Russel House and abandon the associated drainfields. Waste lines leaving Russel house are to be disconnected and abandoned in place.

n. Provide maintenance inspections as per manufacturer’s recommendation for a period of 5 years from completion date.

o. Remove and properly dispose of excess materials and debris off State property.

Note: The accuracy of all applicable dimensions and quantities associated with the work is the responsibility of the Contractor. All information is to be confirmed to the Contractor’s satisfaction prior to bidding.

The State will not be held responsible for the Contractor’s failure to do so.

B. CONTRACTOR QUALIFICATIONS:

A. The Contractor shall be licensed in the State of Maryland as a General Contractor to perform work associated with this project.

B. The Contractor shall have a minimum of three (3) years of experience performing construction work of a similar nature.

C. The Contractor shall be registered by St. Mary’s County to perform work associated with this project.

D. All electrical and plumbing work shall be performed by a licensed contractor approved to perform work in St. Mary’s County

C. SITE VISIT:

A. Prior to preparation of this bid, it is recommended that each bidder make a personal inspection of the site work, site access, and existing structures and note all conditions which may affect this project. All prospective bidders are encouraged to attend the pre-bid conference and familiarize themselves with all requirements for the project. Failure to do so will not relieve the successful bidder from complying with all the requirements of these specifications at no additional cost to the state.

B. Please notify the Facility Manager Dawn Letts at 301-373-9614 prior to any site visit other than the pre-bid conference.

D. SCHEDULE OF WORK:

A. All work shall be coordinated with the Park Manager and DNR Project Engineer at the work initiation meeting.

B. Work shall be accomplished during normal park hours of 8:00 a.m. to 4:30 p.m., Monday through Friday unless permission is given in writing to do otherwise.

C. Work shall be performed and completed within 90 calendar days of Notice to

Proceed.

E. STANDARDS AND CODES:

A. All work shall be performed in a top-quality workmanship manner in accordance with the standards of the trade.

B. The Contractor shall comply with OSHA (Occupational Safety and Health Administration) and MOSH (Maryland Occupational Safety and Health Administration) regulations regarding construction safety and health standards throughout the duration of the Project.

C. All work shall be performed in accordance with the applicable code requirements and standards as defined by the Maryland Code Administration “Maryland Building Performance Standards” (MBPS) and the latest editions of:

- International Code Council (ICC)

- Maryland Building Performance Standards (MBPS)

- Code of Maryland Regulations (COMAR)

- Maryland Department of Labor (DLLR)

- License Regulations

- Maryland Occupational Safety and Health Administration (MOSHA)

- Maryland Department of Environment (MDE)

- International Building Code (IBC)

- International Residential Code (IRC)

- International Plumbing Code (IPC)

- International Mechanical Code (IMC)

- National Electric Code (NEC)

- International Energy Conservation Code (IECC)

- Maryland Accessibility Code (MAC)

- National Fire Protection Association Code (NFPA)

- Maryland Department of Transportation-State Highway Administration’s

(SHA) “Standards Specifications for Construction and Materials

D. The Contractor shall be required to obtain an Electrical Inspection Certificate from a non-governmental inspection agency approved by the State Fire Marshal’s office. All fees for said Inspection Certificate shall be paid by the Contractor.

Upon completion of the project, prior to final payment, the Contractor shall provide an approved electrical inspection certificate for all electric work performed under this project.

E. Electric wiring, grounding, devices, and fixtures shall be color-coded and installed in accordance with the latest edition of the National Electric Code.

F. MATERIALS AND SUPPLIES:

A. General:

1. All materials shall be as specified or approved equal by the DNR Project Engineer. In the event the Contractor would like to substitute materials other than those that have been specified, the Contractor shall submit to the DNR Project Engineer all pertinent data to determine the or-equal status.

2. All materials shall be new and where applicable shall be delivered to the job site with labels intact and legible.

3. The Contractor shall be responsible for the coordination, off-loading, and proper storage of all materials and supplies up until the time of final inspection.

4. Materials shall be stored in a safe area out of the way of traffic. Any on-site storage shall be approved by the Facility Manager prior to the storage of any materials on-site. All materials shall be stored up off the ground surface and should be protected from the weather with a waterproof covering. Any special storage instruction required by the material’s manufacturer shall be performed by the Contractor as specified herein.

5. Once the Project has been awarded, and prior to any purchasing and installation of any material, the contractor shall provide information regarding the material submittals, in accordance with DNR requirements.

6. All work shall be performed in a top-quality workmanship-like manner in accordance with the standards of the trade.

7. All work shall be performed in accordance with the latest edition of applicable code requirements. These include but are not limited to the following: (IBC) International Building Code, (MBPS) Maryland Building Performance Standards, (DLLR) Maryland Department of Labor, License Regulations, (MOSH) Maryland Occupational Safety and Health Administration Maryland Department of Environment (MDE).

8. All work, equipment, and materials under this project shall be subject to St. Mary’s County Health Department Regulations.

9. All work shall be performed in accordance with applicable sections of the latest National Electric Code (NEC). All electric work shall be inspected and approved by a non-governmental inspection company, and approved by the State Fire Marshall, such as the Middle Department. All fees for said inspection shall be paid by the CONTRACTOR.

B. Specific.

1. Septic Tanks: This will be a pre-cast concrete unit. Tank to be constructed from properly reinforced 5000psi, 28 days compression strength precast concrete. All castings shall be complete units with external and internal walls incorporated into each section. To be supplied with proper inlets and outlets. To be supplied with a Bio-Static Sludge return. To be supplied with an electric motor and all necessary controls etc. to enable Mechanical Aeration of effluent. Time of aeration cycle to be set by Sanitarian. BAT system to be Singular TNT Advanced Treatment Unit Model TNT 750 GPD as manufactured by Norweco or approved equal. Other tanks to be as described by approved St. Mary’s Health Department permit drawings.

2. Pump for 1000 Gal: Shall be 115 Volt Effluent Pump, manufactured by Zoeller or an approved equal. Pump shall be 1 horsepower.

3. Pump for 1500 Gal: Shall be 230 Volt Effluent Pump, Model D165, manufactured by Zoeller or an approved equal. Pump shall be ½ horsepower.

4. PVC Pipe, Couplings, and Fittings:

a. Manufactured from virgin rigid PVC (polyvinyl chloride) vinyl compounds with a cell class of 12454 as identified in ASTM D 1784 All pipe and fittings shall be manufactured in the United States.

b. Approved manufacturers include Charlotte Pipe, JM Eagle, Diamond Plastics, and Advanced Drainage Systems.

c. PVC Schedule 40 pipe shall be utilized from the house to the septic tank and at all clean-outs and the two observation ports. Piping to conform to ASTM D 1785. Injection molded PVC Schedule 40 fittings shall conform to ASTM D 2466. Pipe and fittings shall be manufactured as a system and be the product of one manufacturer.

d. PVC SDR 35 Gravity Sewer Pipe and fittings shall be installed from the septic tank to the drain field except for the cleanouts. The pipe shall be manufactured from virgin rigid PVC (polyvinyl chloride) vinyl compounds with a cell class of 12364 as identified in ASTM D 1784. PVC SDR 35 pipe shall conform to ASTM D 3034 for a gasket or solvent-weld pipe with a minimum pipe stiffness of 46. Gaskets shall conform to ASTM F 477.

e. PVC SDR 35 Perforated Sewer Pipe to be the same manufacturer.

Provide transition couplings from SDR 35 to Schedule 40 PVC piping at observation ports.

f. Solvent cement joints shall be made in a two-step process with primer conforming to ASTM F 656 and solvent cement conforming to ASTM D 2564.

g. Contractor shall provide all piping, couplings, fittings, temporary caps, and appurtenances needed for testing, temporarily protecting, and providing a complete system that is fully functional as intended by the scope of the project.

h. Drainage pipe: for the drain field, to be PVC perforated pipe.

i. Drain pipework: other than the drain field, shall be schedule 40 PVC 4” in diameter.

5. Sand Mound Gravel: shall be mean washed and have a minimum size of

¾” and a maximum size 11/2”. Gravel is to be in accordance with St.

Mary’s County Health Department regulations.

6. Fabric Filter Cloth: Shall be an approved filter blanket manufactured for the purpose.

7. Pipe Bedding Material: shall be SHA-approved #10 stone dust or sand.

8. Backfill Material for Non-Paved Areas: existing excavated material that is free of rocks, limbs, etc.

9. Electrical conduit shall be Schedule 40, PVC, UL approved, electrical conduit to include necessary couplings, adapters, fittings, etc. necessary for a complete and satisfactory installation. As Manufactured by Allied

Conduit or approved equal.

10. Conductors shall be THHW copper conductors, #12AWG minimum, properly color-coded at both ends in accordance with NEC requirements.

Each conductor shall be a continuous length with no splices.

11. Marking Tape: Shall be a detectable underground utility tape marking tape. The tape shall consist of a minimum 5 mil overall thickness, with a 50 gauge (0.0005) solid aluminum foil core. All tape is uniform color-coded for each utility. The construction is 2 mil clear film reverse printed laminated to aluminum foil laminated to 2 mil clear film as produced by Pro-line Safety Products Contractor, West Chicago, IL., or approved equal.

12. Topsoil: Shall be natural, friable, surface soil obtained offsite that is uniform in color and texture and in accordance with SHA SSCM

920.01.02. Certification of topsoil being of the proper texture, particle size, organic matter, pH, and other parameters shall be required with delivery tickets.

13. Grass Seed: Shall be a Maryland Department of Agriculture approved blend. Product shall be reviewed by the Facility Manager prior to being purchased and installed.

G. METHOD OF WORK:

A. General:

1. All work shall be performed in a top-quality workmanship manner in accordance with the standards of the trade. Any work completed that does not conform to the standards of the trade shall be corrected at the request of the Project Engineer. This work shall be completed at the contractor’s expense.

2. All materials shall be installed in accordance with the manufacture’s specifications and any applicable building code.

3. The Contractor shall coordinate all work with the various traders and suppliers in order to complete the project expeditiously and within the time limits of the contract.

4. All work shall be performed in accordance to applicable code requirements. These shall include but are not limited to IBC, NSPC, IMC, State, and Local Health Department requirements.

5. All work shall be performed in the best and most professional manner by mechanics skilled in their respective trades.

6. The Contractor shall maintain the job site in a safe, neat, and orderly manner throughout the entire project. Upon completion of the project, the Contractor shall dispose of, legally, all excess materials and debris and leave the entire area clean and in an acceptable condition.

7. Any work that has not been specifically mentioned but is necessary for the safe and satisfactory completion of the project shall be performed by the Contractor as specified herein.

8. At the end of each day, open areas of excavation shall be properly backfilled and compacted.

NOTE: Prior to performing any excavation work, the Contractor shall notify Miss Utility to mark all underground utilities. In addition, the Contractor shall hire a third-party locator to locate other state-owned utilities. If the need is required, the Contractor shall perform excavation adjacent to existing utilities by hand.

B. Specific:

1. Review the approved MDE Erosion and Sediment Control permit (attached). Install the required Stabilized Construction Entrance (SCE) and Silt Fence (SF) in the locations identified on the permit. Identified Staging and Stockpile Area must be created and used during construction.

2. Notify St. Mary’s County Health Department prior to starting construction to coordinate necessary inspections and reviews.

3. The Contractor shall perform necessary clearing and grubbing of the work site. Clearing and grubbing shall be kept to a minimum. Debris generated from this activity may be neatly piled along the job site in an area identified by the Facility Manager.

4. Excavate for and install new BAT tank and pump chamber with pump in the location identified on the Septic Permit (attached).

a. Excavate, prepare, and line excavation with filter cloth in accordance with the MDE and Septic Permit.

b. Install pea gravel or #57 stone to allow for the correct level for the tank and the slope on the pipe work.

c. Tank to be installed in accordance with manufacturer’s recommendations and SMC Health Department requirements.

NOTE: Do not schedule excavation work when bad weather is anticipated, when materials are frozen, saturated, or standing water interferes with procedures. All materials shall be consolidated as much as possible into piles to limit movement of silt. Use all suitable excavated material for backfill. Do not waste excavated material without approval. Prior to using excavated material as backfill, remove boulders, logs, and other unsuitable materials.

5. A Service Pro Electrical Control is to be mounted in a NEMA Rated

Enclosure for outdoor use near the rear of the house. Electric for pump chamber shall be connected to panel inside of the Russel House.

a. Electric from new enclosure to new septic tank and pump chamber is to be run in PVC conduit embedded in stone dust or sand (minimum 3” on all sides). All joints shall be properly sealed and glued.

b. The contractor shall then install the specified marking tape as per NEC requirements and as per the manufacturer’s instructions.

c. Compact backfill with mechanical tamper in 6” lifts.

6. Excavate for and install approximately 400’ LF of new 3” PVC force main from new pump chamber to location of new sand mound drainage.

a. Pipe Trench Detail can be found on Sheet SC.4 of the Sediment Control Plan.

i. Trenches shall receive gravel bedding, suitable backfill, and the specified marking tape as identified in the Detail.

b. Do not drop or dump pipes, fittings, valves, or other water line material into the excavations. Remove fins and burrs from pipes and fittings. Before placing them in position, clean pipes, couplings, fittings, valves, and accessories and maintain them in a clean condition. Dry-fit piping prior to assembly with sealant to ensure proper direction and elevation.

c. Field cut piping square and in-plane to length established at the site. Support pipe at proper elevation and grade, and secure with firm, uniform support. Provide anchors and support where necessary for fastening work into place.

d. Keep trenches free of water until joints have been properly made.

e. At the end of each workday, close the open ends of pipes temporarily with wood blocks or bulkheads. Joining of pipe shall be done in accordance with the pipe manufacturer’s instructions.

f. Pipes shall be tested after installation to ensure there are no leaks and that slopes have been achieved.

7. Excavate for and install new sand mound with drainage system as idented on the Septic Permit. Connect new sand mound lines to new septic system waste line. See drawings for sections and details of desired sand mound system and manifold distribution network.

8. Excavate for and install a new septic tank and pump chamber with pump in the rear of the block shop building as shown on the Septic Permit as “Alternate #1”. This work is included in this projects Base Bid and is not an alternate.

a. The Contractor shall protect existing structure from the excavation practices, open excavations, and demolition activities. Sheet, shore, brace, and support all excavation contiguous to the existing shop building to prevent settlement, movement, or damage to the structure. Photo documentation of the shops masonry structure and finishes in the area of the improvements prior to and during the operations is encouraged.

b. Excavate, prepare, and line excavation with filter cloth in accordance with the MDE and Septic Permit.

c. Install stone dust to allow for the correct level for the tank and the slope on the pipe work.

d. Tank to be installed in accordance with manufacturer’s recommendations and SMC Health Department requirements.

e. Penetrate the exterior wall closed to the electrical panel to install conduit through the wall. Electric to be run in proper conduit from new septic until entering structure. Properly seal the location to prevent water ingress, etc. Install a new conduit in the interior wall of the shop to tie into the existing panel box from the wall penetration on the exterior wall. Repair interior wall finish as necessary. Install new breaker in the panel box per the manufacturer’s instructions for new septic system and per NEC code requirements.

9. Excavate for and install a new 1.5” HDPE drain line from new shop pump chamber to waste line existing the Russel House, approximately 350’ LF.

a. Where line goes under roadway, a 3” PCV sleeve shall be installed, approximately 80’ LF. Pipe must be a minimum of 18” deep and be backfilled with gravel (Cr-6).

b. The contractor shall then install the specified marking tape as per

NEC requirements and as per the manufacturer’s instructions.

10. Cap new line from shop septic to shop directly outside of shop block wall.

Line should include a Schedule 80 PVC (to prevent lawn-mower damage) vertical cleanout near the rear of the building. Line stubbed outside of building will be used to connect shop bathroom during a follow-up project. Line must be sealed so that nothing infiltrated the new septic system.

11. Properly remove existing waste lines below finished floor inside the

Russel house. Install new waste pipes in the crawlspace to ensure all effluent converge and exit in a single line to the new septic system.

Connect new house waste line to new septic system.

12. Test new septic systems for proper operation.

13. The contractor shall have the two existing septic tanks pumped by a licensed septic service. Pierce the bottoms in a minimum of six (6) locations and collapse the walls so that all concrete and piping is a minimum of 2’ below grade. Backfill the tank structures using suitable fill material. Properly compact materials to within 4” of grade. Install 4” of topsoil, seed, and straw area.

a. It is the contractor’s responsibility to account for all contaminated water/water remaining in the tanks prior to placing their bid.

b. Waste lines leaving Russel house are to be disconnected and abandoned in place.

c. Properly locate and remove the existing distribution boxes.

d. Properly locate and abandon the existing drain field according to

County regulations.

14. Work on the permits relating to the existing sump pit located in front of the block shop building is not part of this contract. That work will take place when a new bathroom is constructed inside of the block shop and new septic system is connected. See Sheet SC.2 for details.

15. Provide maintenance inspections as per manufacturer’s recommendation for a period of 5 years from completion date.

16. All disturbed turf areas shall be stabilized withing 24 hours of backfill placement. Stabilization shall include topsoil, seed, and straw in accordance with the MDE permit. Hand-rake topsoil to match adjacent contours.

17. Excess materials and debris shall be removed and properly disposed of by the contractor off State property. MDE Inspector is to be notified of the location of excess backfill materials.

18. Prior to final acceptance, coordinate the removal of the silt fence with

MDE Inspector.

19. Prior to final acceptance, coordinate any inspections as required by the St.

Mary’s County Health Department.

H. GENERAL REQUIREMENTS:

1. All work shall be coordinated with the Facility Manager and DNR Project Engineer at the work initiation meeting.

2. Work shall be accomplished during normal work hours of 8:00 a.m. to 4:30 p.m., Monday through Friday unless permission is given in writing by the Facility Manager to do otherwise.

3. The Project Manager will identify the requirements for documentation, Administrative Submittals, Progress Meetings, Change Orders, completion reporting, payment application, and any special requirements of these specifications.

4. The Contractor shall forward Administrative Submittals to the Project Manager, and receive written approval of said submittals, prior to mobilizing or ordering materials. Administrative Submittals shall include, if applicable, permits, certifications, resumes, project schedule, licenses, schedule of values, subcontractor information, and safety procedures.

5. The Contractor shall provide product data, shop drawings, manufacturer’s installation instructions, samples, etc. as requested by the Project Manager.

Work associated with submittals shall not commence prior to approval.

6. The Contractor shall provide temporary controls to limit disturbances beyond the areas necessary to perform the work and workers, employees, and the public’s exposure to potential hazards during the progress of work. Controls may include tarps, taped plastic containment areas, filter covers, fans, signage, fencing, cones, barriers, traffic control services, etc.

7. The Contractor shall provide a bar chart, or list of dates, proposing the construction schedule from the anticipated start date until completion without interruption. The schedule shall show all steps or stages of the project that are dependent on other work being in place. Additionally, work by subcontractors or changes in the division of construction shall be shown. The Contractor shall immediately notify the Project Manager of any anticipated delays, such as long lead items.

8. Project Progress Meetings shall be scheduled biweekly or monthly, as required by the Project Manager, throughout the duration of the project. The Contractor shall provide updates on work activities, the construction schedule, submittals, quality control, safety, security, etc. on a biweekly basis regardless of the meeting schedule.

9. When the Contractor believes the work in place satisfies the contract requirements and can be utilized by the facility for its intended purpose, the Contractor shall request a Substantial Completion Inspection. If determined substantially complete, the Project Manager will provide the inspection report, list any items observed incomplete and/or in need of correction, and shall identify the warranty start date.

10. The Contractor shall provide closeout documents at the time of the Substantial

Completion including the Contractor’s two-year warranty specific to the project.

The Contractor shall also provide any manufacturer’s warranties, operation and maintenance manuals, final inspection reports, facility training information, loose accessories, keys, attic stock, etc., and As-Built Drawings, if applicable to the project.

I. WARRANTY & GUARANTEE:

1. The Contractor shall provide to the Project the manufacturer’s warranty and guarantees for the materials used in this project.

2. The Contractor shall guarantee the work for a period of two (2) years against faulty workmanship from the date of acceptance. Any defects found within the warranty period shall be repaired or replaced by the Contractor at no additional cost to the State.

3. The contractor shall also be responsible for maintaining the OSDS treatment equipment in proper working condition and shall be responsible for maintenance and monitoring in accordance with the MDE/ Bay Restoration Fund requirements for a period of five (5) years.

J. METHOD OF PAYMENT:

1. Payments shall be made in accordance with General Conditions, Terms and Conditions.

1. After satisfactory completion of the work the Contractor shall submit an invoice to the DNR Project Manager for processing and payment.

II. ALTERNATES AND UNIT PRICES

1. Alternates:

A. None

2. Unit Prices:

N/A

NOTE: The contractor shall incorporate all costs associated with transportation, fuel, maintenance of equipment, employee salary, benefits, overhead, profit etc. in the Unit Price. Unit Prices will be used to increase/decrease the contract price based on actual quantities installed, in accordance with the instructions to Bidders for Construction Projects (3.B.3)

III. DRAWINGS AND ATTACHMENTS

1. The following drawings and attachments are attached and should be considered part of these specifications as if specified herein:

A. Maryland Department of the Environment - Erosion and Sediment Control Permit

B. St. Mary’s County Health Department – Septic Permit