Exhibit C. Maryville Water Phase II Specs.pdf

WATER SYSTEMS STANDARD SPECIFICATIONS

FOR

Maryville Watermain Improvements Phase II

City of Georgetown, South Carolina

Prepared for:

City of Georgetown

2377 MAYBANK DRIVE

GEORGETOWN, SOUTH CAROLINA 29440

(843) 545-4501

Prepared by:

ROWE Professional Services Company

4502 US Highway 17 Bypass South Myrtle Beach, South Carolina 29588

(843) 444-1020

07-25 WATER MAIN

SECTION 33 11 00 – PAGE 1

SECTION 33 11 00

WATER MAIN

PART 1 - GENERAL

Work Included

The Contractor shall install water main and appurtenances in accordance with this specification.

This work includes excavation, pipelaying, backfilling, and testing.

The Contractor shall protect existing utilities during construction, whether the existing utilities are shown on the plans or not. Utilities damaged by construction shall be repaired in a manner satisfactory to the Engineer and at the Contractor's expense. The Contractor shall call Palmetto Utility Protection Service (888-721-7877) for staking and locating the existing utilities.

The City of Georgetown water department will assist the Contractor in locating existing water service leads and mains.

The Contractor shall contact the City of Georgetown water department to schedule work that may interfere with existing water service.

The Contractor shall develop a construction sequencing plan and submit to the Engineer and Owner for approval. The construction sequence shall minimize interruption of service.

References

Where materials or methods of construction are listed as being in conformance with a standard specification, it shall refer to the latest edition of the standard specification or any interim revision.

A. ANSI A21.4/AWWA C104 – American National Standard for Cement-Mortar Lining for Ductile- Iron Pipe and Fittings for Water

B. ANSI A21.5/AWWA C105 – American National Standard for Polyethylene Encasement for Ductile-Iron Pipe Systems

C. ANSI A21.11/AWWA C111 – American National Standard for Rubber-Gasket Joints for Ductile- Iron Pressure Pipe and Fittings

D. ANSI A21.50/AWWA C150 – American National Standard for Thickness Design for Ductile-Iron Pipe

E. ANSI A21.51/AWWA C151 – American National Standard for Ductile-Iron Pipe, Centrifugally Cast, for Water

F. ANSI A21.53/AWWA C153 – American National Standard for Ductile-Iron Compact Fittings for Water Service

G. AWWA C110 – Ductile-Iron and Gray-Iron Fittings

H. AWWA C115 – Flanged Ductile-Iron Pipe With Ductile-Iron or Gray-Iron Threaded Flanges

SECTION 33 11 00 – PAGE 2

I. AWWA C500 – Metal-Seated Gate Valves for Water Supply Service

J. AWWA C502 – Dry-Barrel Fire Hydrants

K. AWWA C504 – Rubber-Seated Butterfly Valves

L. AWWA C509 – Resilient-Seated Gate Valves for Water Supply Service

M. AWWA C512 – Air Release, Air/Vacuum, and Combination Air Valves for Water and Wastewater Service

N. AWWA C515 – Reduced-Wall, Resilient-Seated Gate Valves for Water Supply Service

O. AWWA C600 – Installation of Ductile Iron Water Mains and Their Appurtenances

P. AWWA C605 – Underground Installation of Polyvinyl Chloride (PVC) and Molecularly Oriented Polyvinyl Chloride (PVCO) Pressure Pipe and Fittings

Q. AWWA C651 – Disinfecting Water Mains

R. AWWA C800 – Underground Service Line Valves & Fittings

S. AWWA C900 – Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings, 4 In. Through 60 In. (100 mm Through 1,500 mm), for Water Transmission and Distribution

T. AWWA C904 – Crosslinked Polyethylene (PEX) Pressure Tubing, 1/2 In. (13 mm) Through 3 in.

(76 mm) for Water Service

U. AWWA C906 – Polyethylene (PE) Pressure Pipe and Fittings, 4 In. Through 65 In. (100 mm Through 1,650 mm), for Waterworks

V. AWWA C908 – Standard for PVC Self-Tapping Saddle Tees for Use on PVC Pipe

W. AWWA C909 – Molecularly Oriented Polyvinyl Chloride (PVCO) Pressure Pipe, 4 In. (100 mm) and Larger

X. ASTM B88 – Standard Specification for Seamless Copper Water Tube

Y. ASTM B251 – Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube

Z. ASTM C443 – Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets

AA. ASTM C478 – Standard Specification for Circular Precast Reinforced Concrete Manhole Sections

BB. ASTM D1248 – Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable

CC. ASTM D2657 – Standard Practice for Heat Fusion Joining of Polyolefin Pipe and Fittings

DD. ASTM D3035 – Standard Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Controlled Outside Diameter

EE. ASTM D3139 – Standard Specification for Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals

SECTION 33 11 00 – PAGE 3

FF. ASTM D3350 – Standard Specification for Polyethylene Plastics Pipe and Fittings Materials

GG. ASTM F714 – Standard Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Outside Diameter

HH. ISO 9002 – Model for Quality Assurance in Production, Installation and Servicing

II. CSA B137.5 - Crosslinked Polyethylene Tubing Systems for Pressure Applications

JJ. DIPRA – Polyethylene Encasement Installation Guide

KK. DIPRA – Thrust Restraint Design for Ductile Iron Pipe

LL. NSF/ANSI Standard 14 – Plastics Piping System Components and Related Materials

MM. NSF/ANSI Standard 61 – Drinking Water System Components-Health Affects

NN. Plastic Pipe Institute TR-3/2021/HDB/HDS/PDB/SDB/MRS/CRS Policies

Submittals

Submit shop drawings or manufacturer's data to the Engineer for review and approval prior to ordering for the following:

A. Hydrants

B. Valves

C. Pipe, including fittings and joints

D. Restraints

E. Curb stops, corporation taps, and curb stop boxes

F. Tracer wire and splice connections

G. Casing pipe

H. Manholes, manhole adjusting rings, and castings

I. Directional Bore

Work Plan Prior to beginning work, the Contractor shall submit to the Engineer a work plan detailing the procedure and schedule to be used to execute the project. The work plan should include a description of all equipment to be used, a schedule of work activity, a safety plan (including MSDS of any potentially hazardous substances to be used), an environmental protection plan, and contingency plans for possible problems. The work plan should be comprehensive, realistic, and based on actual working conditions for this particular project. The work plan should document the thoughtful planning required to successfully complete the project.

Equipment Submit specifications on directional drilling equipment to be used to ensure that the equipment will be adequate to complete the project. Equipment shall include, but not be

SECTION 33 11 00 – PAGE 4

limited to: drilling rig, mud system, mud motors (if applicable), downhole tools, guidance system, and rig safety systems. Calibration records for guidance equipment shall be included. Specifications for any drilling fluid additives that the Contractor intends to use or might use shall be submitted.

Quality Assurance and Quality Control

A. Leakage The completed pipeline shall be subjected to a hydrostatic pressure test in accordance with Section 3.17.

B. Bacteriological Following disinfection, a bacteriological test shall be completed in accordance with Section 3.17.

Local Standards

The Owner’s standards for materials are shown on the plans. Where there is a conflict between the Owner’s standards and the specifications, the Owner’s standards prevail.

Directional Bore Contractor’s Qualifications and Experience

All directional boring operations shall be done by a qualified directional boring Contractor, with at least five years of experience involving work of a similar nature to the work required of this project.

Notify the Owner and Engineer a minimum of three days in advance of the start of work.

All work shall be performed in the presence of the Owner or Engineer.

PART 2 - PRODUCTS

Materials

A. Pipe Pipe may be any of the following materials, except where a specific material is indicated on the plans or in the proposal.

Ductile Iron Pipe (Class 350) Ductile iron pipe shall meet ANSI A21.51/AWWA C151. Pipe shall be cement lined and shall meet ANSI A21.4/AWWA C104. Pipe wall thickness shall conform to ANSI A21.50/AWWA C150 and shall be of the following thicknesses, unless specifically noted otherwise on the plans or in the proposal:

Pipe Diameter

(inches) Pipe Class

(psi) 4 52 6 52 8 52

SECTION 33 11 00 – PAGE 5

Pipe Diameter (inches)

Pipe Class (psi)

10 52 12 52 14 54 16 54 18 54 20 54 24 54

The pipe manufacturer and class shall be marked on each length of pipe.

Joints for buried pipe shall be either mechanical type or push-on type, in accordance with ANSI A21.11/AWWA C111. Working pressure shall be 350 psi. Provide electrical conductivity at each joint.

Joints for piping in structures shall be flanged.

Joints for directionally bored pipe shall be snap lock gasket style manufactured by Griffen, or as approved by the Engineer.

Polyvinyl Chloride (PVC) Pipe PVC pipe shall meet the requirements of AWWA C900. Pipe shall have a ratio of diameter to wall thickness (DR) of DR 18 (Pressure Class 150) for pipe diameters 4” – 12”. Pipes smaller than 4” shall have a standard dimension ratio (SDR) of SDR 21 (Pressure Class 200), unless noted otherwise on the plans or on the proposal.

Pipe shall meet both NSF/ANSI Standard 61 and NSF/ANSI Standard 14. Pipe shall be marked with “NSF-PW” to indicate its compliance with these standards.

The pipe manufacturer and class shall be marked on each length of pipe.

Joints for pipe shall be push-on type with elastomeric gaskets meeting the requirements of ASTM D3139.

The use of solvent-weld PVC pipe or fittings in water mains 4 inches and larger is prohibited.

Polyethylene (PE) Pipe for Directionally Bored Construction HDPE pipe shall meet the requirements of AWWA C906. Pipe shall have a ratio of diameter to wall thickness of 13.5 (DR 13.5) with a DR 17 casing, unless noted otherwise on the plans or on the proposal.

Pipe shall meet both NSF/ANSI Standard 61 and NSF/ANSI Standard 14. Pipe shall be marked with “NSF-PW” to indicate its compliance with these standards.

SECTION 33 11 00 – PAGE 6

The pipe manufacturer and class shall be marked on each length of pipe.

Joints for pipe shall be by thermal butt fusion per ASTM D2657.

B. Fittings Fittings shall be mechanical joint or push-on type, either cast iron or ductile iron as follows:

Cast iron fittings shall meet the requirements of AWWA C110 and shall be rated for 350 psi working pressure. Ductile iron fitting shall meet the ANSI A21.53/AWWA C153 and shall be Class 350. Fittings shall be cement lined in accordance with ANSI A21.4/AWWA C104. Rubber gasket joints shall meet ANSI A21.11/AWWA C111. Natural rubber or other materials which will support microbiological growth may not be used for any gaskets, O-rings, and other products used for jointing pipes, setting meters or valves, or other appurtenances which will expose the material to the water. Electrical conductivity shall be provided at each joint.

C. Gate Valves Gate valves shall meet the Owner’s standards for manufacturer, style, and opening direction.

Gate valves shall be iron body, non-rising stem, resilient wedge type meeting the requirements of AWWA C509. Gate valves shall be designed for direct bury application.

Resilient seated valves shall meet the requirements of AWWA C509, thick wall valves shall meet AWWA C515.

D. Hydrants Hydrants shall meet or exceed AWWA C502. Unless otherwise noted, hydrants shall meet the City of Georgetown standards.

Nozzle caps shall be securely chained to the barrel. Hydrants shall be of the breakable flange type, such that neither barrel nor stem are damaged upon impact and that no water is lost.

Hydrants shall be designed so that the direction of the nozzles can be changed by rotating the above-ground section.

Hydrant color shall be approved by Owner.

Hydrants shall be provided with a drain, which is plugged at the time of delivery. Hydrants are to be of the "dry top" design to prevent freezing.

If removal of the seat valve requires a special wrench, one shall be provided. The wrench shall operate the valve stem at the point of removal of the above-ground section.

Operating nut size, shape, opening direction and model shall be in accordance with the Owner's standards.

E. Copper Pipe Copper pipe shall be constructed of Type K, soft temper copper tubing for underground use, in accordance with ASTM B88 and B251. The manufacturer and pipe type shall be marked on the outside of the pipe. The weight per foot of copper tubing shall meet or exceed that specified by ASTM B251, Table II.

SECTION 33 11 00 – PAGE 7

F. Stops and Fittings Corporation stops, curb stops, and fittings shall be fabricated of brass and shall be lead free.

For PVC pipe, any taps 2 inches or less shall be Style 202B saddle with stainless steel bands, as manufactured by Ford Brass or approved equal.

G. Service Boxes Water services boxes shall be of a style conforming to the Owner's standard. Boxes shall be adjustable, a minimum of 6 inches above and below finish grade.

H. Valve Boxes Valve boxes shall be made of good quality cast iron and shall be of the sectional type. The lower section shall be a minimum of 5 inches in diameter, enlarged at the base to fit around the bonnet of the valve. The upper section shall be arranged to slide or screw down over the adjoining lower section and shall be full diameter throughout. Valve boxes shall be provided with cast iron lids or covers. Lids or covers shall be marked "WATER". The over-all length of valve boxes shall be sufficient to permit the top to be set flush with the final ground surface grade.

I. Materials for Gate Wells The manhole base, sections, and reducer shall be manufactured in accordance with ASTM C478, with rubber gasket conforming to ASTM C443. The manhole sections shall be provided with an 8-inch pre-cast base slab. Integrally cast wall and slab sections are required.

Adjusting rings shall be manufactured in accordance with ASTM C478.

Manhole steps shall be copolymer polypropylene plastic steps with a steel reinforcement bar, with a minimum diameter of ½-inch, a minimum width of 10 inches center to center of wall anchor, and complete with anti-skid side plates conforming to ASTM D4101. Steps shall be manufactured with the manhole wall and spaced at a maximum of 16 inches on center. Gray iron castings shall be heavy duty classification and shall conform to ASTM A48 Class 35B coated with asphalt coating.

Manhole frames and covers shall be EJ No. 104014 with 1040 AGS cover and covers shall be stamped “WATER” with 2-inch raised letters, or approved equal.

J. Tracer Wire Tracer wire shall be designed and manufactured for the purpose of detecting buried utilities.

Tracer wire shall be 12 AWG (minimum) copper wire coated with a 30 mil (minimum) blue polyethylene jacket. The Contractor shall use larger wire, when necessary, for installation without damage during bored installations. Tracer wire shall be terminated at a valve box or meter box. All water mains shall be detectable within 3 feet with electronic locating equipment.

K. Polyethylene Encasement Polyethylene encasement shall be in tube and sheet form, fabricated from either linear low-density polyethylene film having a thickness of at least 8 mils or high-density, cross-laminated polyethylene film with a thickness of at least 4 mils.

SECTION 33 11 00 – PAGE 8

PART 3 - EXECUTION

Alignment and Grade

The water mains shall be constructed at the alignment and grades indicated in the plans and specifications, except where changes are directed or approved by the Engineer. Installation of water mains and appurtenances shall be conducted in accordance with Section C of AWWA Standards and/or manufacturer’s recommended installation procedures. Fittings, valves, hydrants, and service connections shall be installed at the locations indicated on the drawings or in the specifications, except where field conditions warrant changes which are directed and approved by the Engineer.

Valves and hydrants shall be installed plumb. Valve operating stems shall be installed in a manner to allow for their proper operation.

Investigation

Prior to excavation, the Contractor shall call Palmetto Utility Protection Service and shall contact utility agencies which are not part of the Palmetto Utility Protection Service system to make arrangements for identifying the location of existing utilities in the project area. Where potential conflicts are suggested by the plans and/or the utilities’ locations, the Contractor shall excavate and expose the existing utilities at least 100 feet in advance of pipelaying operations. Where the existing utilities may conflict with the proposed alignment and construction, the Contractor shall make such appropriate modifications to the alignment and grade, as necessary, to prevent a conflict. Changes to the alignment and grade shall be as directed and approved by the Engineer.

Changes to the alignment and grade shall be completed by the Contractor at no additional cost to the project.

Excavation

The Contractor shall excavate all materials to the depths necessary to construct the water main as shown on the plans. Excavation shall include the removal of rock, dirt, abandoned pipelines, old foundations, stumps and roots, and similar materials encountered. Excavation of whatever material encountered shall be included in the contract unit prices for water main installation and will not be paid for separately.

Bedding

A continuous and uniform bedding shall be provided in the trench for all buried pipes.

Back-fill material shall be tamped in layers around the pipe and to a sufficient height above the pipe to adequately support and protect the pipe. Stones, other than crushed bedding, shall not come in contact with the pipe and shall be not be within 6 inches of the pipe.

Pipe Handling

Pipe shall be handled in such a manner as to prevent the ends from splitting, damages to the protective coatings, and other undesirable conditions. Pipe shall not be dropped, skidded, or rolled into other pipe. Repairs to damaged pipe must be approved by the Engineer.

SECTION 33 11 00 – PAGE 9

Any pipe, solder, or flux which is used in the installation or repair of any public water system, used in any plumbing which provides water through connection to a public water system, for human consumption, shall be lead free. Lead free, for solder and flux, means those containing not more than 0.2% lead. Lead free, for pipes and pipe fittings, as those containing not more than 8.0% lead.

Leaded joints necessary for the repair of CIP shall be exempt from the above.

Pipe Cutting

Pipe cutting shall be done in a neat and workmanlike manner, without damage to the pipe or lining, and as to leave a smooth end at right angles to the axis of the pipe. Cutting shall be done by an approved mechanical saw or cutter. Hydraulic squeeze cutters are not acceptable.

Pipelaying

Installation of water man shall be conducted in accordance with the manufacturer’s recommended installation procedures.

Pipe located inside structures shall be rigidly supported.

Pipe laid underground shall be uniformly supported through its entire length on a 4-inch cushion of sand. A depression shall be carved out of the sand cushion to accommodate the pipe bells.

Pipe shall be inspected for defects, debris, or dirt while suspended in a sling prior to lowering it into the trench. Defective pipe shall be removed from the project site immediately. Lumps, blisters, and excess coal tar coating shall be removed from inside the bell and outside the spigot.

These areas shall be wire-brushed and wiped clean with a dry oil-free rag. No debris, tools, clothing, or other materials shall be allowed in the pipe.

Pipe shall be laid in a dry trench, with bell ends facing in the direction of laying. After placing a length of pipe in the trench, and after installing the gasket and applying the gasket lubricant, the spigot end shall be centered in the bell, and the pipe pushed home and brought to the correct line and grade. Lubricants which will support microbiological growth shall not be used for slip-on joints. The use of vegetable shortening is prohibited. The pipe shall be secured in place by tamping sand around it. Precautions shall be taken to prevent soil from entering the joint space.

A watertight plug shall be inserted in the open end(s) of the pipe to prevent water, soil, animals, or other foreign matter from entering the pipe during the construction phase.

When it is necessary to deflect pipe from a straight line, either horizontally or vertically, the deflection shall not exceed the following values:

Nominal Pipe Size (inches)

PVC & PVCO “Push on” Joint Maximum

Deflection (inches/18-foot length)

Ductile Iron “Push on” Joint Maximum

Deflection (inches/18-foot length)

Ductile Iron Mechanical Joint Maximum

Deflection (inches/18-foot length)

4 4 19 27 6 4 19 27

SECTION 33 11 00 – PAGE 10

Nominal Pipe Size (inches)

PVC & PVCO “Push on” Joint Maximum

Deflection (inches/18-foot length)

Ductile Iron “Push on” Joint Maximum

Deflection (inches/18-foot length)

Ductile Iron Mechanical Joint Maximum

Deflection (inches/18-foot length)

8 4 19 20 10 4 19 20 12 4 19 20 14 0 11 13 16 0 11 13 18 0 11 13 20 0 11 11 24 0 11 9

Jointing

A. Fittings Fittings and appurtenances shall be conducted in accordance the manufacturer’s recommended installation procedures.

Mechanical and "push on" joints shall be installed in accordance with the joint manufacturer's recommendations. Copies of such recommendations shall be furnished to the Engineer prior to the start of construction.

Flange faces of flanged joints shall be thoroughly cleaned with a wire brush and the pipe carefully aligned. The gasket shall then be inserted between the flanges and the bolts and nuts installed. Tightening of the bolts shall be done evenly around the flange so as to uniformly distribute the stress carried by the bolts.

B. Butt Fusion Joints for pipe shall be by thermal butt fusion per ASTM D2657. All joints shall be performed in accordance with the procedures recommended by the manufacturer.

Tracer Wire

A tracer wire shall be laid along the crown of any plastic pipes. The wire shall be attached to the top of the pipe in such a manner that it will not become displaced during construction and backfilling. Tracer wire shall be continuous (without splices) over each separate run. If wire is damaged or broken during installation, a new wire shall be installed by the Contractor. The wire shall be terminated at a valve box or meter box as approved by the City of Georgetown.

Separation and Cover

All water main shall be provided with a minimum of 36 inches of cover.

Where the proposed water main crosses under an existing utility, the proposed water main shall be deflected above or below the existing utility in accordance with the following:

A. Maintain a minimum depth of cover over top of proposed water main as shown on the drawings.

SECTION 33 11 00 – PAGE 11

B. Maintain at least 18 inches of vertical separation and 10 feet of horizontal separation between the outside of the proposed water main and the outside of a sewer, drain pipe, or catch basin lead.

C. Maintain at least 1 foot of vertical separation between the outside of the proposed water main and the outside of an existing utility other than a sewer, drain or catch basin lead.

D. When crossing an existing sewer, drain pipe, or catch basin lead, construct the proposed water main so that its joints are equidistant from the utility being crossed.

E. Chambers, pits or manholes containing valves, blow-offs, meters, air relief valves, or other such appurtenances to a distribution system, shall not be connected directly to any storm drain or sanitary sewer.

Hydrants and Valves

A. General Hydrants and valves shall be located as shown on the plans or as otherwise directed by the Engineer. Failure by the Contractor to locate said hydrants or valves, as called for, may result in Contractor correcting the error at their own expense.

B. Setting Hydrants Hydrant bowls shall be set on aggregate or concrete slab and braced to resist thrust. Hydrants shall be set perfectly plumb. Hydrant valves shall be located according to the details on the plans or by the Engineer.

Excavations for the construction of hydrants and hydrant leads shall be backfilled with sand and compacted. That portion of the excavation outside the 1:1 influence of an existing or proposed roadway, sidewalk, driveway, parking lot, structure, or railroad, and at least 12 inches above the pipe, may be backfilled with suitable excavated material, and compacted.

Hydrants shall be supplied with the correct bury height needed at each location. If the water main is deeper than the minimum bury depth for constructability purposes and the hydrant lead pipe elevation cannot be adjusted, the hydrant bury height will need to be increased or the hydrant shall have an extension installed accordingly.

C. Setting Valves Valves shall be examined by the Contractor prior to lowering in the trench. All nuts and bolts shall be checked to assure tightness.

Valves shall be installed with the valve closed, supported on two 2-inch by 6-inch by 18-inch hardwood blocks and vertically plumb. The valve box shall be set plumb and its axis shall be in line with the stem. Valve boxes shall have the ability for future adjustments of up to 6 inches, above or below grade.

D. Cutting-in Valves Where shown on the plans or directed by the Engineer, the Contractor shall install a new valve on an existing line. The existing main shall be uncovered by the Contractor. A section of the existing main shall then be cut out. The length will vary depending on the valve and sleeve

SECTION 33 11 00 – PAGE 12

dimensions. A suitable mechanical joint cutting-in sleeve shall be slid over one end of the pipe, and a gate valve installed over the other end. After the gate valve is in the "home" position, the sleeve shall be slid into the gate valve. The gaskets shall be positioned and the mechanical joints shall be tightened to the manufacturer's specifications. The valve shall be plumb.

Provide support under the valve by placing two 2-inch by 6-inch by 18-inch hardwood boards.

The completed installation shall be visually inspected for leaks before the pipe is covered. The valve box shall be installed over gate valve and adjusted to the proposed grade. The excavation shall be backfilled with sand and compacted. That part of the excavation that is not within the 1:1 influence of an existing or proposed roadway or railway, and at least 6 inches above the water main, may be backfilled with suitable excavated material and compacted.

E. Cross Connection Control (Backflow Prevention Devices):

There shall be no connection between the distribution system and any pipes, pumps, hydrants, or tanks whereby unsafe water or other contamination materials may be discharged or drawn into the system.

No bypasses shall be allowed, unless the bypass is also equipped with an equal, approved back-flow prevention device.

High hazard category cross connections require an air gap separation or an approved reduced pressure backflow preventer.

Reduced pressure principal backflow prevention assemblies shall not be installed in any area location subject to possible flooding. This includes pits or vaults which are not provided with a gravity drain to the ground’s surface that is capable of exceeding the discharge rate of the relief valve. Generally, if installed in a pit, the drain line shall be 2 times the size of the line entering the backflow prevention device. The drain cannot empty into any type of ditch, storm drain, or sewer, which could flood water back into the pit.

All piping up to the inlet of the backflow prevention device must be suitable for potable water. The pipe must be AWWA or NSF approved. Black steel pipe cannot be used on the inlet side of the device.

Fire line sprinkler systems and dedicated fire lines, except those in high hazard category shall be protected by an approved double check valve assembly.

Thrust Restraint

All tees, plugs, bends, hydrants, offsets, and similar fittings shall be mechanically restrained or braced to undisturbed ground by use of concrete thrust blocks.

Concrete for use as thrust blocks shall have a 28-day compressive strength of not less than 3,000 psi. The thrust block shall be placed so that the pipe, valve, hydrant, or fitting joints are accessible for repair. Details of placement of thrust blocks are shown on the plans. Vertical bends will require blocking and strapping as shown on the plans.

Restrained joints for PVC and PVCO pipe shall be as follows:

A. MEGALUG by EBAA Iron, Series 19MJ00 or approved equal for mechanical joint restraints.

SECTION 33 11 00 – PAGE 13

B. MEGALUG by EBAA Iron, Series 1900 or approved equal for push joint/bell restraints.

Restrain all mechanical joints with retainer glands. Restraint all joints within length(s) according to restraint schedule, as determined using EBAA Iron Restraint Length Calculator.

Restrained joints are considered included in work of water main construction and will not be paid for separately.

Connection of Polyethylene to Fixed Appurtenances for Fittings

All connections where PE water main is transitioned to a different type of piping material or fitting, the pipe shall be anchored in concrete at the connection of the PE to the existing or proposed line or fitting. Concrete for use as anchor blocks shall have a 28-day compressive strength of not less than 3,000 psi. A flanged HDPE fitting shall be butt fused at the location of the transition of differing materials and encased in concrete.

Water Services

Water services shall be constructed where shown on the plans or where directed by the Engineer.

Water service pipe shall be connected to the water main through a brass corporation stop.

Water service pipe shall be connected to the water main through a service clamp or saddle (except where direct tapping is permitted) and brass corporation stop. The water main shall be under pressure during the tapping process. The pipe shall be drilled and tapped to the appropriate size for the connection being installed. The service clamp or saddle shall provide full support around the circumference of the pipe, and have a bearing area of sufficient width along the length of the pipe so that the pipe will not be distorted when the saddle is tightened. U-bolts will not be permitted.

PVC pipe shall not be direct tapped. Services 2 inches and under shall utilize a service saddle.

The maximum service connection for PVC pipe is 2 inches.

After tapping the main and installing the corporation stop, the tap shall be tested by turning the corporation on and off. Any leakage detected visually shall be corrected by the Contractor.

The water service pipe shall be constructed of HDPE 200 PSI pipe. The pipe shall be laid such that it follows the details on the plans and according to the City of Georgetown standards.

After the pipe is in place and connected to the curb stop, the line shall be visually checked for leaks by closing the curb stop and opening the corporation stop.

The Contractor shall leave the corporation stop in the open position, unless directed otherwise by the Engineer.

The excavation resulting from water service pipe construction or reconnections and within the 1:1 influence of a roadway, driveway, sidewalk, parking lot, railroad, or other structures shall be

SECTION 33 11 00 – PAGE 14

backfilled by the Contractor with sand and compacted. Excavations not within the 1:1 influence of structures or paved surfaces may be backfilled with suitable native soils and shall be compacted.

Water service pipe shall be buried to the depth shown on the plans for water main depth, unless otherwise directed by the Engineer.

Water mains shall be located out of contaminated areas, unless using pipe materials that will protect (i.e., DIP with chemical resistant gaskets). Re-route line if possible.

Conflicts with Existing Utilities Excavation shall be made sufficiently in advance of pipelaying operations so that water main alignment can be adjusted to go above, below, or around existing pipes, structures, cables, or other obstacles that are encountered. Where such minor adjustments are made to the water main alignment, no additional compensation will be due to the Contractor.

Where existing electric cables, telephone cables, gas mains, or services are damaged, repairs shall be at the Contractor's expense. The repairs shall be made by the appropriate utility.

Where sewer leads are damaged, they shall be repaired by the Contractor at no charge to the Owner. Sewer leads shall be repaired with a section of schedule 40 PVC pipe of the size encountered. Pipe of the same material as that encountered can also be used. The damaged pipe shall be cut square and the "connection" area shall be thoroughly cleaned. Rubber gasketed sleeve couplings, suitable for connecting the pipe sizes and materials encountered, shall be furnished and installed by the Contractor for each reconnection or repair joint.

Conflicts with Proposed Utilities

This work consists of relocating a portion of existing water main or water service to avoid a conflict with a proposed utility. This work includes furnishing all labor, equipment, and materials required for excavation, installation, disinfection, and backfilling as shown on the plans and specified within this specification.

Restoration

Areas disturbed by construction activities shall be restored by the Contractor.

Testing and Disinfection

A. Hydrostatic Pressure Testing for Water Main Any pressure and leakage tests must be conducted in accordance with AWWA Standard C600 or the latest revision and the City of Georgetown standards. All visible leaks shall be repaired regardless of the amount of leakage.

Water main shall be hydrostatically tested immediately after the section to be tested is installed. The Contractor shall provide all labor, equipment, and materials to perform the test, including pumps, gauges, plugs, corporations, water, miscellaneous pipes and fittings, and a

SECTION 33 11 00 – PAGE 15

means of measuring lost water. The testing equipment shall be approved by the Engineer.

The Contractor shall fill the main through hydrants or corporations. After completion of the tests, corporations made for the purpose of testing shall be plugged. Water shall be added to the line and air expelled to provide a pressure of 150 psig. When the Contractor has verified that all air is expelled and that the test pressure is maintained, the Contractor shall notify the Engineer to witness the test. The Engineer shall be given at least a 24-hour notice. The test duration shall be two hours. Water shall be added during the test period, as required, to maintain the required pressure to the highest point in the system throughout the test period.

The amount of water required to maintain the test pressure is the actual leakage.

The actual leakage shall not exceed the allowable leakage as tabulated below:

Pipe Size (inch)

Allowable Leakage per 1,000 feet of Water Main

(gallons/2 hours) 6 1.00 8 1.32

10 1.66 12 1.98 16 2.64 20 3.32 24 3.98

If unsatisfactory results are obtained, the Contractor shall locate and repair the leak and the system shall be retested.

B. Tracer Wire Continuity The Contractor shall demonstrate continuity of the installed tracer wire to the Engineer.

C. Disinfection The Contractor shall flush the water main with potable water until discharge from the main runs clear. Prior to sampling, the chlorine residual must be reduced to normal system residual levels or be non-detectable in those systems not chlorinating. The main shall be chlorinated in accordance with AWWA C651-14 or the latest revision and the City of Georgetown standards. After the chlorination procedure is completed, the water main shall be flushed again until the chlorine content is equal to that of the water being supplied. Sixteen hours or longer after the flushing, the Contractor may begin collecting samples for bacteriological analysis. If the membrane filter method of analysis is used for the coliform analysis, non-coliform growth must also be reported. If the non-coliform growth is greater than eighty (80) colonies per one hundred (100) milliliters, the sample result is invalid and must be repeated.

Samples shall be collected at 24-hour intervals until two consecutive satisfactory results are obtained. All samples must be analyzed by a State certified laboratory. The chlorine residual must also be measured and reported. Samples shall be collected at the end opposite the chlorine injection, except that in long lines or where contamination is suspected, the Engineer may require other sampling points. Sampling shall be performed under the observation of the Engineer. No flushing device shall be directly connected to any sewer.

SECTION 33 11 00 – PAGE 16

Where satisfactory results are not obtained, the main shall be reflushed, redisinfected, and retested. Heavily chlorinated water shall be disposed of properly.

Abandoning Water Mains

Existing water main shall be abandoned where shown on the drawings or directed by the Engineer.

Water main that is to be abandoned shall be disconnected from the existing main which is to remain in service. A suitable sized plug or cap shall be installed on the existing main to remain in service, together with suitable thrust restraint.

Where directed, the existing water main, together with any fittings and appurtenances, shall be removed in their entirety. The Contractor shall fill the excavation resulting from the excavation and removal of the pipe.

If the abandoned water main is to remain in place, the open ends of the pipe (or fittings) shall be bulkheaded. When designated on the plans or by the Engineer, the existing pipe shall also be filled with a lean grout mixture (flowable fill). The Contractor shall provide suitable openings in the pipe to fill the pipe and prevent the trapping of air. Fill shall be placed evenly to avoid displacing pipes or structures. Pipes and conduits within the fill area shall be secured to resist any movement resulting from buoyant forces.

***END OF SECTION***

MARYVILLE WATER DISTRIBUTION

IMPROVEMENTS

PHASE II

PERMITS

info@des.sc.gov | des.sc.gov | 803.898.3432

June 17, 2025

Orlando Arteaga City of Georgetown 2377 Maybank Drive Georgetown, SC 29440

RE: Maryville Water Improvements Phase II, Georgetown County

NPDES Coverage Number: SCR10ZHT7

Dear Orlando Arteaga:

The South Carolina Department of Environmental Services (Department or SCDES) has approved the Stormwater Pollution Prevention Plan (SWPPP) for the referenced project on June 17, 2025 WITHOUT REVIEW. Based on your submission of the Notice of Intent (NOI) and in accordance with the NPDES General Permit for Stormwater Discharges from Construction Activities SCR100000 (CGP), this project has been granted coverage under the CGP. This project’s general permit coverage number is SCR10ZHT7. The total disturbed area for this site is 1.4 acres.

See attached SCDES Bureau of Coastal Management (SCDES-BCM) certification dated June 9, 2025 for additional conditions related to the Coastal Zone Consistency determination.

The CGP can be downloaded at the following website:

https://des.sc.gov/sites/des/files/media/document/BOW_NPDESStormwaterDischargesGP_01292021_0.pdf.

You are responsible for ensuring your contractor(s) complies with the approved SWPPP and the minimum requirements of the CGP. Also, you are responsible for overall compliance with the Storm Water Management and Sediment Reduction Act of 1991 (1991 Act), SC Pollution Control Act, and the Federal Clean Water Act (CWA). Failure to comply with the approved SWPPP or applicable statutes and regulations may result in enforcement actions.

You must notify the local SCDES Bureau of Regional and Laboratory Services (BRLS) office prior to starting any land-disturbing activity. The address and telephone number are as follows:

Pee Dee EA Myrtle Beach 927 Shine Avenue Myrtle Beach, SC 29577

(843) 238-4378

Inspections of this site must be performed by qualified personnel as described in Section 4.2.E of the CGP.

https://des.sc.gov/sites/des/files/media/document/BOW_NPDESStormwaterDischargesGP_01292021_0.pdf

You should be aware that this approval is only applicable for the SWPPP that was submitted for this project.

Any additional construction or land disturbing activity beyond the scope of the approved plans is not authorized. Any future work for this project not shown on the stamped, approved plans will require that you submit another site plan for review and approval. All major modifications require review and approval by the Department. Minor modifications to the approved SWPPP may be made by the SWPPP preparer and do not require review and approval by the Department; these changes should be signed and dated by the SWPPP preparer. If you have a question about whether a modification is major or minor, contact the Coastal Stormwater Permitting Section at (843) 953-0200.

A copy of the stamped, approved SWPPP (including a copy of the CGP, contractor certifications, inspection records, rainfall data, etc.), NOI, and CGP coverage letter from SCDES must be retained and available at the construction site (or accessible within 30 minutes during normal business hours) from the date of commencement of construction activities to the date of final stabilization. If an on-site location is unavailable to store the SWPPP when no personnel are present, notice of the plan’s location must be posted near the main entrance at the construction site.

All contractors who will conduct land-disturbing activities at the site must complete a Contractor Certification Form. You are also responsible for listing all contractors in the SWPPP and for holding a pre-construction conference with each contractor before they can conduct land-disturbing activity at the site.

The Department may conduct periodic inspections of your site. Any violations found during these inspections may result in enforcement action.

This NPDES coverage should be terminated by the permittee when the conditions listed in Section 5.1 of the CGP have been met. You must submit a Notice of Termination (NOT) to cancel your NPDES coverage under the CGP. Please see section 5.1 of the CGP for additional information required to be submitted with the NOT.

You are responsible for obtaining any other federal, state, or local permit that may be required for this project. In particular, any permits through the U.S. Army Corps of Engineers for the placement of fill material in Waters of the United States. Please note we have not sent a copy of this letter to any county or city building official. You must send a copy of this letter to these agencies, if necessary.

If material excavated during construction activities leaves the site, a mine operating permit may be needed. You are responsible for contacting the Mining and Reclamation Section to determine if a mining permit is required for the site. The Mining and Reclamation Section can be reached at (803)898-1362 or via e-mail at AskMines@des.sc.gov.

S.C. Code Ann. § 48-6-30(D)(2) provides, “Within thirty calendar days after the mailing of a decision [pursuant to S.C. Code Ann.§ 48-6-30(D)(1)], an applicant, permittee, licensee, certificate holder, or affected person desiring to contest the department decision may request a contested case hearing before the Administrative Law Court, in accordance with the Administrative Procedures Act.”

mailto:AskMines@des.sc.gov

If you have any questions or cannot access the referenced websites, please email me.

Sincerely, Sine, Stephanie M., Environmental/Health Manager III Coastal Stormwater Permitting Section ec: Ryan Harvey, ROWE Professional Services Company Michele Hartung, Pee Dee EA Myrtle Beach

Water Supply Construction Permit Bureau of Water

Permission is Hereby Granted To: GEORGETOWN CITY OF

1134 N FRASIER ST

GEORGETOWN SC 29440

For the construction of a distribution system in accordance with the construction plans, specifications, design calculations and the SCDES Construction Permit Application signed by Ryan Harvey, Professional Engineer, S.C.

Registration Number: .

Project Name: MARYVILLE WATER DISTRIBUTION IMPROVEMENTS PH 2 County: Georgetown

Location: MORRISON ST, ELIZABETH ST, OAK ST

Project Description: UPGRAGE 2" WATER LINES WITH 4,379 LF OF 6" PVC WATER MAINS WITH NEW WATER

SERVICES, INCREASED FLOW, AND SYSTEM PRESSURE. ADD 6 FIRE HYRANTS FOR FIRE PROTECTION.

Service By: Water will be provided by the Georgetown City Of (System Number: 2210001).

Special Conditions:

None

In accepting this permit, the owner agrees to the admission of properly authorized persons at all reasonable hours for the purpose of sampling and inspection.

NOTE: This is a permit for construction only and does not constitute State Department of Environmental Services approval, temporary or otherwise, to place the system in operation. No written approval shall be issued to place a drinking water project into operation until approval is obtained to place any associated wastewater project into operation. An Approval to Place in Operation is required and can be obtained following the completion of construction by contacting the MYRTLE BEACH EQC OFFICE. Additional permits may be required prior to construction (e.g., stormwater).

Permit Number: 38735-WS

Date of Issue: July 24, 2025

Expiration Date: Construction must be completed and the Approval to Place in

Operation granted prior to July 24, 2028 or this permit will expire.

RSM

Douglas B. Kinard P.E, Director

Drinking Water and Recreational Waters

Protection Division

Coastal Zone Consistency Determination

To: Pamela D. Winkler, BOW Coastal Stormwater Permitting Section

Melanie Barnes, BOW Construction Permitting Section

From: Tess E. Gray, BCM Coastal Zone Consistency Section

Applicant: Orlando Arteaga, City of Georgetown

Project Name: Maryville Water Improvements Phase II

Finding: Conditionally Consistent with the SC Coastal Zone Management Program

Site Location: Morrison Street, Elizabeth Street, & Oak Street, Georgetown, Georgetown County, South Carolina

(TMS#: N/A)

Reference #: HQB-YPR9-P66TT, WS not yet assigned

Date: June 9, 2025

The staff of the Bureau of Coastal Management (BCM) reviewed the above referenced Coastal Zone Consistency project request for land disturbance associated with water supply.

Construction activities include upgrading the watermain and associated infrastructure. Stormwater management includes existing roadside swales. No wetland impacts permitted. The total area of disturbance will be 1.4 acres of a 1.4 acre project site.

We hereby certify that the above referenced project is Conditionally Consistent with the Guidelines for Evaluation of All Projects as well as the Public Services and Facilities (Water Supply) and Stormwater Management (Runoff) policies contained in the S.C. Coastal Zone Management Program provided the following conditions are included in the permits and adhered to by the applicant.

1. In the event that any historic or cultural resources and/or archaeological materials are found during the course of work, the applicant must notify the State Historic Preservation Office and the South Carolina Institute of Archaeology and Anthropology.

Historic or cultural resources consist of those sites listed in the National Register of Historic Places and those sites that are eligible for the National Register. Archaeological materials consist of any items, fifty years old or older, which were made or used by man.

These items include, but are not limited to, stone projectile points (arrowheads), ceramic sherds, bricks, worked wood, bone and stone, metal and glass objects, and human skeletal materials.

2. The project must be consistent with State Stormwater Permitting requirements during and post construction for protection of water quality.

3. All construction BMPs must be installed, inspected and maintained to hold sediment onsite and to protect any adjacent or downstream critical area, wetlands and waters through the life of the project. Upon completion of construction activities, all disturbed (including undeveloped) areas, including those impacted for access, must be immediately stabilized.

4. The project must be fully consistent with local zoning and comprehensive plans prior to work being conducted.

5. The applicant is not authorized to impact any wetlands. In the event any impacts to wetlands occur, the US Army Corps of Engineers and SCDES-BCM must be notified, and all work must cease to minimize additional impacts until the applicant receives authorization.

This determination shall serve as the SCDES BCM Coastal Zone Consistency Determination for the work described above. However, this determination does not serve as a Department permitting decision and does not alleviate the applicant’s responsibility to obtain any applicable State or Federal permit(s) for the work. Local government authorizations may also be required.

Permit Number : 296415 Page: 1 of 2

SOUTH CAROLINA DEPARTMENT OF TRANSPORTATION

Encroachment Permit

Permit No : 296415

Permit Decision Date :

8/26/2025

Expiration Date : 8/26/2026 Type Permit :WATER Location:

District Work County Type Route Aux Begin MP End MP

5 Georgetown, SC S- 61 None 0.469 0.125

5 Georgetown, SC S- 233 None 0.144 0.330

5 Georgetown, SC S- 780 None 0.022 0.200

Contact Information

Applicant: CityofGeorgetown Phone: (843)545-4501 Contact: Orlando Arteaga, PE Address: 2377 Maybank Drive, City: Georgetown State: SC Zip: 29440

Comments entire length of Morrison Street, Elizabeth Street from Poplar Street to South Island Road, and Oak Street from Elizabeth Street to Shopwall Street

Special Provisions:

0004 - SCDOT SHALL BE NOTIFIED WHEN WORK DEFINED IN THE PERMIT STARTS

AS WELL AS WHEN THE WORK IS COMPLETED. REFERENCE SHALL BE MADE BY

PERMIT NUMBER.

0101 - SHOULDER SOD DESTROYED BY THIS INSTALLATION TO BE REPLACED

FOR THE ENTIRE AREA. THE AREA SHALL BE RE-SHAPED AND ROLLED TO THE

CROSS SECTION EXISTING PRIOR TO THIS WORK.

0102 - BORE PITS SHALL BE CLOSED IMMEDIATELY AFTER INSTALLATION.

0103 - THE PROPOSED ENCROACHMENT SHALL BE TRENCHED TO A MINIMUM

DEPTH OF 42" BELOW THE CROSS SECTION AS ORIGINALLY CONSTRUCTED.

0107 - TRENCH TO BE PROPERLY BACK-FILLED AND THOROUGHLY TAMPED. THE

ENTIRE DISTURBED AREA SHALL BE RE-SHAPED AND…