preliminary engineering report jennyville water...

Hybrid Engineering, Inc., 7400 Irmo Drive, Columbia, South Carolina 29212 P– 803.407.0472 F– 803.407.0473 hybrideng.com

Preliminary Engineering Report Jennyville Water Improvements Town of Kingstree Kingstree, South Carolina

Preliminary Engineering Report

for

Jennyville Water Improvements

Town of Kingstree, SC

7400 Irmo Drive, Columbia, SC 29212

P 803.407.0472 | F 803.407.0473 | hybrideng.com

May 2016

5.3.16

1

PER for Jennyville Water Improvements


Preliminary Engineering Report

for



TABLE OF CONTENTS

_______________________________________________________

1. General 2 2. Project Planning Area 4 3. Existing Facilities 18 4. Need for Project 21 5. Alternatives Considered 25 6. Selection of an Alternative 28 7. Proposed Project 29 8. Conclusions and Recommendations 32 Appendix A-Kingstree Water System Map

_______________________________________________________

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11.. GGEENNEERRAALL

The Town of Kingstree is located in the Coastal

Plain of South Carolina. Located along the Black River,

the Town of Kingstree serves as the county seat for

Williamsburg County. The Town has a population

estimated to now be approximately 3,500 persons. The

original town, laid out in 1730 by the Lords Proprietors

on the bank of the Black River, was named Williamsburg in honor of England’s

Protestant King William of Orange. A lone, unusually large white pine was found along

the Black River and since tall white pines were ideal for use as masts for ships, the King

claimed it. The King's broad arrow mark was put upon this tree to prevent anyone else

from cutting it, and it was never cut. Over time, the county kept the name Williamsburg,

but the county seat became known as The King's Tree, giving rise to its modern name.

In 1886, King’s Tree became known as Kingstree.

The Town of Kingstree, owns, operates, and maintains public water system that

serves residential, commercial, and industrial customers throughout the Town and in

areas of Williamsburg County in the immediate vicinity of Kingstree. The Town of

Kingstree has the sole and exclusive right to provide water service to the property inside

its service area, and it was granted this right by Williamsburg County. At present, the

service area of the Kingstree Water System is bordered on the west by the Black River,

extends southward from Main Street for approximately 2.1 miles, northward from Main

Street for approximately 5 miles, and eastward from the Black River for approximately 2

miles. The Town of Kingstree provides service to approximately 2,900 water customers

http://en.wikipedia.org/wiki/Province_of_Carolina

http://en.wikipedia.org/wiki/Eastern_white_pine

http://en.wikipedia.org/wiki/Black_River_(South_Carolina)

http://en.wikipedia.org/wiki/Broad_arrow

3



and 2,000 wastewater customers throughout the Town and areas of Williamsburg

County in the immediate vicinity of Kingstree.

Some years ago, the Town extended a 12-inch water main for approximately 5

miles north of Town along SC Highway 527 (Sumter Highway). With time, additional

residential development has occurred along the secondary roads branching off from SC

Highway 527 (Sumter Highway). The Jennyville Community is one such residential

neighborhood but so far, only the residences fronting on SC Highway 527 (Sumter

Highway) have had access to public water service. The Jennyville Community, whose

residents are primarily of low and moderate income, is located north of Kingstree along

Sumter Highway (SC Highway 527), and it includes Diamond Loop and Kings Shortcut

to the east and Martha’s Loop to the west. In 2011, members of the community

approached the Town and lobbied for the extension of water service into their

community. Consequently, the Town of Kingstree is planning the construction of the

Jennyvillle Water Improvements Project. The project would include approximately 1.1

miles of 6-inch water main, 0.3 miles of 4-inch water main, 4 fire hydrants, and service

assemblies for 50 residences. These improvements are proposed to be funded

primarily with a Community Development Block Grant from the US Department of

Housing & Urban Development through the SC Department of Commerce.

This report, prepared for the exclusive use of the Town of Kingstree, presents

the findings of a Preliminary Engineering Report (PER) for Jennyville Water

Improvements in Kingstree, South Carolina. The development of this PER was

authorized by a Master Agreement for Professional Engineering Services dated May 8,

2009 executed by Mr. Daniel B. Wells, Manager of the Town of Kingstree and by Mr. C.

Douglas Clary, Jr., President of Hybrid Engineering, Inc.

4



The agreed scope of services for this PER for Jennyville Water Improvements

for the Town of Kingstree included the following:

Project Description

Project Planning Area

Existing Facilities

Project Need

Alternative Consideration

Recommendations & Conclusions

Publish Preliminary Engineering Report

Hybrid Engineering, Inc. gratefully acknowledges the assistance and cooperation

of the Town of Kingstree’s staff without which, this undertaking could not have been

possible.

5



22.. PPRROOJJEECCTT PPLLAANNNNIINNGG AARREEAA

a. Location

Town of Kingstree, owns, operates, and maintains public water and wastewater

systems that serve residential, commercial, and industrial customers throughout the

Town and in areas of Williamsburg County in the immediate vicinity of Kingstree. The

Town of Kingstree has the sole and exclusive right to provide water and wastewater

services to the property inside its service area. A Location Map, Parcel Map, and

Project Map for the Jennyville Water Improvements are presented at the conclusion of

Section 2.a. The Kingstree Water System Map is presented as Appendix A.

The Town of Kingstree is the largest municipality in Williamsburg County which

is at the southern tip of the Pee Dee Region of South Carolina. The area has become

famous for its wildlife and hunting preserves and has truly become a "Sportsman’s

Paradise." Though Williamsburg County meets the definition of a “Persistent Poverty

County” as outlined in the American Recovery & Reinvestment Act of 2009 (ARRA), the

Kingstree area is home to a number of successful industries.

An agricultural based community, the area is home to one of the largest cotton

gins and tobacco markets in the state. The Town of Kingstree is situated 75 miles from

Charleston, Columbia, and Myrtle Beach. Major highways traversing Williamsburg

County include US Highway 521, US Highway 52, and SC Highways 377, 527, and 261.

The Town of Kingstree is less than an hour's drive to the Port of Charleston, and has

access to rail lines that serve the entire US Eastern Seaboard.

Location Map Jennyville Water Improvements Town of Kingstree, SC April 3, 2016

Parcel Map Jennyville Water Improvements Town of Kingstree, SC April 3, 2016

Project Map Jennyville Water Improvements Town of Kingstree, SC April 3, 2016

Legend: Existing 12” Water Main Proposed 6” Water Main Proposed 4” Water Main Proposed Fire Hydrant

Existing 12-inch Water Main

Proposed 6-inch Water Main

Proposed Fire Hydrant


9



b. Environmental Resources Present

The sites of the proposed water mains are within existing mowed or paved

highway rights-of-way. The National Wetlands Inventory (NWI) Maps, FEMA Flood

Hazard Maps, and Soils Maps depicting the location of the project components are

presented at the conclusion of Section 2.b.

The Town of Kingstree contains some 25 basic soils associations. The

predominant soils in the Kingstree area are the Noboco, Candor, and Hobcaw

associations. The Hobcaw association has severe constraints for development, which is

primarily located in the Black River Flood Plain in the western portion of the Town.

Groundwater in the Kingstree area is abundant and of relatively high quality. The

Town of Kingstree uses a number of aquifers as its potable water source. These

aquifers are located approximately 700 to 800 feet and 850 to 1,250 feet below the

ground surface and supply the Town with acceptable quantities and quality of

groundwater. Yields from the principal aquifers range from 250 to 1,000 gallons per

minute (gpm).

Surface water resources in the Kingstree area include the Kingstree Swamp

Canal and Kingstree Branch which converge with the Black River, located along the

southwest side of Kingstree, which flows through the Coastal Plain of South Carolina.

The headwaters of the Black River originate in Lee County south of the City of

Bishopville, and the river flows southeasterly through the heart of Williamsburg County

on its 150-mile trek to the Atlantic Ocean. The Native Americans who occupied the area

before the colonial era called the river the Wee Nee, and several businesses in the area

still use this name. The Black River is a free-flowing black water river shouldered by a

ribbon of dense, undisturbed swamp forest. This ribbon of wild and undeveloped land

10



provides high quality habitat for a variety of plant and animal species. The water has a

dark inky black color due to chemicals known as tannins leached from the cypress trees

and the surrounding swamps. This river has many curves, white sandbars, and seldom

flows over 5 miles per hour. It draws fisherman from all over for its bounty of bream, red

breasted sunfish, largemouth bass, and catfish. It is also an excellent river for leisurely

float trips for wildlife watching or nature photography. In 1999, the Williamsburg

Hometown Chamber Quality of Place Committee requested that the South Carolina

Department of Natural Resources (SCDNR) consider the Black River for inclusion in the

State Scenic River Program. In June 2001, a 75-mile segment of the Black River

became South Carolina's seventh and longest State Scenic River. This scenic river

segment begins at County Road #40 in Clarendon County, and it extends southeast

through Williamsburg County to Pea House Landing at the end of County Road #38 in

Georgetown County.

Kingstree is relatively flat with elevations ranging form 69’ to a low of slightly less

than 40’ above mean sea level. Generally, the natural drainage in Kingstree is poor

because of the flatness of the land and high water table. The Kingstree Swamp Canal,

built in 1977 by the US Army Corps of Engineers (USACE), was constructed to improve

the drainage of the area especially during large storm events. The drainage has

improved, however, the canal will soon be undergoing improvements long sought by the

USACE. Regular maintenance of roadway ditches is also important to prevent the

flooding of streets and property.

The List of Endangered Species on the United States Fish &

Wildlife Service (USFWS) website has been reviewed. Listed species for

Williamsburg County, South Carolina included the Bald eagle (Haliaeetus

11



leucocephalus), Red-cockaded woodpecker (Picoides borealis), Wood stork (Mycteria

americana), Canby's dropwort (Oxypolis canbyi), and American chaffseed (Schwalbea

americana). The South Carolina Rare, Threatened, & Endangered Species Inventory

Species Found In Williamsburg County, South Carolina maintained by the South

Carolina Department of Natural Resources Department’s

(SCDNR) Heritage Trust Program and dated June 11, 2014 was

also reviewed. The SCDNR list included the Rafinesque’s Big-

Eared Bat (Corynorhinus Rafinesquii) as a State Threatened species in the inventory

that was not listed by the USFWS. Construction of the Jennyville Water Improvements

is not expected to have an effect to these species.

The Federal Emergency Management Agency’s

(FEMA) Flood Insurance Rate Map (FIRM) for this area has

been reviewed. No construction components in the Jennyville Water Improvements will

cross the 100-year flood plain.

Historic properties

that are listed or eligible for

listing on the National

Register of Historic Places in the vicinity of Kingstree have been reviewed and

consultations have been held with the State Historic Preservation Office (SHPO) of the

South Carolina Department of Archives and History. Construction of the Jennyville

Water Improvements is not expected to have an effect on these properties.

Wetlands Map Jennyville Water Improvements Town of Kingstree, SC April 3, 2016

Flood Hazard Zone Map Jennyville Water Improvements Town of Kingstree, SC April 3, 2016

Soil Map—Williamsburg County, South Carolina(Jennyville Water Improvements)

Natural ResourcesConservation Service

Web Soil SurveyNational Cooperative Soil Survey

4/10/2016Page 1 of 3

3730

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603300 603400 603500 603600 603700 603800 603900 604000 604100 604200 604300 604400 604500 604600 604700

603300 603400 603500 603600 603700 603800 603900 604000 604100 604200 604300 604400 604500 604600 604700

33° 43' 12'' N79

° 5

3' 8

'' W33° 43' 12'' N

79° 5

2' 1

0'' W

33° 42' 41'' N

79° 5

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'' W

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N

Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 17N WGS840 300 600 1200 1800

Feet0 100 200 400 600

MetersMap Scale: 1:6,820 if printed on A landscape (11" x 8.5") sheet.

MAP LEGEND MAP INFORMATION

Area of Interest (AOI)Area of Interest (AOI)

SoilsSoil Map Unit Polygons

Soil Map Unit Lines

Soil Map Unit Points

Special Point FeaturesBlowout

Borrow Pit

Clay Spot

Closed Depression

Gravel Pit

Gravelly Spot

Landfill

Lava Flow

Marsh or swamp

Mine or Quarry

Miscellaneous Water

Perennial Water

Rock Outcrop

Saline Spot

Sandy Spot

Severely Eroded Spot

Sinkhole

Slide or Slip

Sodic Spot

Spoil Area

Stony Spot

Very Stony Spot

Wet Spot

Other

Special Line Features

Water FeaturesStreams and Canals

TransportationRails

Interstate Highways

US Routes

Major Roads

Local Roads

BackgroundAerial Photography

The soil surveys that comprise your AOI were mapped at 1:20,000.

Warning: Soil Map may not be valid at this scale.

Enlargement of maps beyond the scale of mapping can causemisunderstanding of the detail of mapping and accuracy of soil lineplacement. The maps do not show the small areas of contrastingsoils that could have been shown at a more detailed scale.

Please rely on the bar scale on each map sheet for mapmeasurements.

Source of Map: Natural Resources Conservation ServiceWeb Soil Survey URL: http://websoilsurvey.nrcs.usda.govCoordinate System: Web Mercator (EPSG:3857)

Maps from the Web Soil Survey are based on the Web Mercatorprojection, which preserves direction and shape but distortsdistance and area. A projection that preserves area, such as theAlbers equal-area conic projection, should be used if more accuratecalculations of distance or area are required.

This product is generated from the USDA-NRCS certified data as ofthe version date(s) listed below.

Soil Survey Area: Williamsburg County, South CarolinaSurvey Area Data: Version 14, Sep 29, 2015

Soil map units are labeled (as space allows) for map scales 1:50,000or larger.

Date(s) aerial images were photographed: Nov 28, 2010—Jan 2,2012

The orthophoto or other base map on which the soil lines werecompiled and digitized probably differs from the backgroundimagery displayed on these maps. As a result, some minor shiftingof map unit boundaries may be evident.

Soil Map—Williamsburg County, South Carolina(Jennyville Water Improvements)



4/10/2016Page 2 of 3

Map Unit Legend

Williamsburg County, South Carolina (SC089)

Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI

CmC Chisolm loamy fine sand, 6 to10 percent slopes

8.5 5.0%

FxB Foxworth sand, 0 to 6 percentslopes

126.0 74.1%

Js Johnston sandy loam,frequently flooded

12.4 7.3%

Le Leon sand, 0 to 2 percentslopes

6.0 3.5%

Px Paxville fine sandy loam 2.9 1.7%

Rt Rutlege loamy sand, ponded 1.5 0.9%

TmA Tomahawk loamy sand, 0 to 2percent slopes

11.4 6.7%

Ud Udorthents, loamy 1.2 0.7%

Totals for Area of Interest 170.0 100.0%

Soil Map—Williamsburg County, South Carolina Jennyville Water Improvements



4/10/2016Page 3 of 3

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c. Growth Areas & Population Trends

According to the US Census Bureau, the Town of Kingstree had a population of

3,328 persons and Williamsburg County as a whole had a population of 34,423 persons

in 2010. Using this information, the State of South Carolina Revenue & Fiscal Affairs

Office provides the population projections for the county. Williamsburg County’s

population is projected to be 32,900 persons by 2030. Table 2.1 depicts the County’s

overall and Town’s population for years 1980, 1990, 2000, and 2010, and projected for

2020, 2025, and 2030.

Table 2.1 Population Projections

Town of Kingstree Williamsburg County

April 1, 1980 Census 4,147 38,226

April 1, 1990 Census 3,858 36,815

April 1, 2000 Census 3,496 37,217

April 1, 2010 Census 3,328 34,423

July 1, 2020 Projection 3,297 33,100

July 1, 2025 Projection Not Available 33,000

July 1, 2030 Projection Not Available 32,900

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33.. EEXXIISSTTIINNGG FFAACCIILLIITTIIEESS

a. Location

A Location Map and a Project Map were presented in Section 2.a. As can be

noted, the Jennyville Water Improvements Project is located in Williamsburg County, SC

but outside the Town Limits of the Town of Kingstree.

b. History

The earliest known provision of public water service by the Town of Kingstree

was 1883. Since that time, the Town has continually provided service to its residential,

commercial, and industrial customers throughout the Town and in areas of Williamsburg

County in the immediate vicinity of Kingstree.

b.1 Water System

At present, the Town has 1,313 in-town residential, 1,143 out-of-town residential,

324 in-town commercial, and 115 out-of-town commercial water customers. Water is

supplied via four wells that are controlled manually. In determining the capacities of the

Town of Kingstree Water System, it is important to consider the SCDHEC definition of

groundwater capacity found under Section 61-58.2 of the State Primary Drinking Water

Regulations (SPDWR). Subpart B defines the capacity for water systems with

groundwater sources as:

“The total developed groundwater source capacity shall equal or exceed the design maximum day demand without pumping more than sixteen (16) hours a day. With the largest producing well out of service, the capacity of the remaining well(s) pumping twenty-four (24) hours a day shall equal or exceed the design maximum daily demand, except those systems requiring only one (1) well. The capacity from an additional source (Surface Water Treatment Plant or Master Meter) will be included in the quantity analysis.”

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To paraphrase, the water supply capacity of a system is found to be the lesser of

16 hours of pumping for all wells (known as the 16-hour production) or 24 hours of

pumping with the largest well out of service (known as the 24-hour production). In the

case of the Town of Kingstree, the resulting supply capacity from these wells would be

2.3 million gallons per day. Current daily water demand averages approximately 1

million gallons per day, and maximum daily water demand is approximately 1.6 million

gallons per day so ample capacity is available to supply the demands of the Jennyville

Community. The Town’s wells and their capacities are provided in Table 3.1.

Table 3.1 Town of Kingstree Water Supply Capacity

Well Capacity 16-Hour

Production

24-Hour

Production

Highway 377 Well 500 GPM 480,000 GPD 720,000 GPD

Brockington Well 600 GPM 576,000 GPD 864,000 GPD

Fennel Field Well 450 GPM 432,000 GPD 648,000 GPD

County Camp Well 1,200 GPM 1,152,000 GPD

Total 2,640,000 GPD 2,232,000 GPD

Three elevated tanks provide water storage for the town. These include County

Camp Tank, Pepsi Tank, and the Rocktown Tank. Collectively, these tanks store

1,150,000 gallons with an average fill time of 4 hours. The Town’s tanks with

corresponding capacities are provided in Table 3.2.

Table 3.2 Town of Kingstree Water Storage Capacity

Tank Capacity

County Camp Tank 300,000 GAL

Pepsi Tank 300,000 GAL

Rocktown Tank 250,000 GAL

Town Hall Tank 300,000 GAL

Total 1,150,000 GAL

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The SCDHEC’s SPDWR requires that where fire flows are provided, tanks shall

be sized to provide 2 hours of supply for a combined flow of peak hour domestic plus file

flow; or, the storage capacity (or equivalent capacity) shall equal on half (1/2) the

maximum daily consumption, whichever is greater. Based on a peak factor of 2.67 for

peak hourly demand and a peak factor of 1.33 for maximum daily demand, the required

storage capacity for the Town of Kingstree would be the greater of approximately

800,000 million gallons or 326,700 gallons.

The water mains in the distribution system range from 2” to 14” in size. The

majority of the Town’s water pipes are 6” in diameter.

c. Condition of Facilities

The Town of Kingstree has an ongoing program to identify and

replace/rehabilitate pipe infrastructure that is in poor condition and deteriorating further

each year. Water pipe infrastructure in many areas of the Town is anywhere from 50 to

100 years old and has met or exceeded its intended life expectancy. The U.S.

Environmental Protection Agency (EPA) has projected that unless cities invest more to

repair and replace their water systems, nearly half of these piping systems in the United

States will be in poor, very poor, or “life elapsed” status in the next few years.

The Town of Kingstree undertook its 2010 Water Improvements Project a few

years ago which replaced a substantial portion of the Towns oldest water mains in the

heart of downtown, replaced more than 100 fire hydrants, readied an abandoned well for

future reuse, replaced more than 99% of the water meters, and built a new 300,000-

gallon elevated water storate tank. Earlier this year, the Town completed the

refurbishment of the Pepsi Water Tank and the Rocktown Water Tank.

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44.. NNEEEEDD FFOORR PPRROOJJEECCTT

a. Health, Sanitation & Security

In the operation of a public water system, the Town of Kingstree must abide by

all applicable drinking water standards set forth by the USEPA in the Safe Drinking

Water Act as well as those set forth by the SCDHEC in its State Primary Drinking Water

Regulations. The target area for the proposed Jennyville Water Improvements includes

50 residences of which 49 are currently occupied and 1 is vacant but occupiable. Based

on door-to-door surveys of the currently occupied residence, it is understood that 35 are

of low and moderate income (LMI) and 15 are of non-LMI.

All 50 residences proposed to receive public water service

in the Jennyville Water Improvements currently receive their

drinking water from individual, shallow private wells. While no

specific testing has been performed, these wells likely were

compromised during the “1,000-year” flood of October 2015 and

may well now test positive for bacteria. Additionally, the lack of fire hydrants results in

fireman having to ferry water from the existing fire hydrants located on the Town’s 12-

inch water main located on Sumter Highway (SC Highway 527) thereby resulting in

constant peril from poor fire protection.

b. System Operation & Maintenance

The completion of the 2010 Water Improvements Project several years ago

certainly positioned the Town of Kingstree to extend the provision of water services to

areas such as the Jennyville Community. There will be no operation and maintenance

benefits that will be realized by the proposed Jennyville Water Improvements, and there

22



will only be a very small incremental additional cost of operating and maintaining the

Kingstree Water System as a result of expanding into the Jennyville Community.

c. Growth

While the population projections do not indicate increases in population in the

Town of Kingstree or Williamsburg County, there are concerted efforts by many local

leaders to raise the standard of living by making significant infrastructure improvements

and attracting new industry to the area. The Williamsburg County Development Board,

the Williamsburg County Development Corporation, and Williamsburg County

Government have proven success in attracting industry to the area. They cite a large

pool of available labor, workforce training programs that lead the nation, and a pro-

business attitude as the major reasons for their success.

Most of the industrial parks and sites in Williamsburg County are located in the

proximity of the Town of Kingstree. Most of the future industrial development within

Williamsburg County is expected to occur in areas where wastewater service is

reasonably available. Table 4.1 depicts these available industrial sites and parks.

Table 4.1 Available Industrial Parks & Sites

Available

Acreage Site/Park Name Community

20 Acres Atkinson Industrial Site Kingstree

50 Acres Hemingway Commerce Centre Hemingway

56 Acres Cox Industrial Site Kingstree

71 Acres Tri-Area Business Center Salters

98 Acres Epps Industrial Site I Kingstree

100 Acres Epps Industrial Site II Kingstree

121 Acres Brockington Site Kingstree

140 Acres Williamsburg Coop. Commerce Centre Kingstree

20 Acres Atkinson Industrial Site Kingstree

http://www.williamsburgcountydevelopment.com/show_site.asp?id=46









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The number of water customers was projected based on a customer growth rate

of one percent (1%) annual increase in customers to account for system expansions

and economic development. The one percent (1%) annual increase is believed to

represent a modest and nominal assumption for the expansion of service and economic

development. The water customer projections through 2030 are presented in Table 4.2.

Table 4.2 Water Customer Projections

Service

Number of Customers

Current

(2016) 2020 2030

Water 2,895 3,198 3,532

With these growth projections, a net increase of 637 water customers is expected for

the areas that could be reasonably provided that service by the Town of Kingstree.

For conceptual planning and projection of anticipated supply needs, it is

assumed that each resident will consume 100 gallons per day. The assumption of 100

gallons of water usage per resident per day, found in the Ten State Standards for

Water Works Design, is widely accepted for water systems. According to the 2010

Census, the average household within Williamsburg County consisted of approximately

2.29 persons. For purposes of water and wastewater studies, the term Equivalent

Residential Unit (ERU) is defined as an entity for which the average water usage is

equivalent to the average water usage by a single-family home. For purposes of

volumetric supply needs and flow projections associated with this study, an ERU is

conservatively presumed to have an average water usage of 230 GPD. All this being

said, water demands and wastewater flows for the Town of Kingstree are projected in

Table 4.3.

24



Table 4.3 Average Water Demands & Wastewater Flow Projections

Service Million Gallons Per Day

Current 2020 2030

Water Demand 1.25 1.38 1.53

25



55.. AALLTTEERRNNAATTIIVVEESS CCOONNSSIIDDEERREEDD

a. No Action

The No Action alternative to the Jennyville Water Improvements would result in

the continuation of poor quality drinking water being supplied by shallow private wells

and poor fire protection in the Jennyville Community. This No Action alternative would

have no environmental impacts, but it would also have no benefits to the community.

b. Preliminary Conceptual Design

The preliminary conceptual design of the various components

of the Town of Kingstree’s Jennyville Water Improvements Project is

described below. Additionally, the key advantages, key

disadvantages, environmental impacts, land requirements, potential

construction problems, and anticipated public reactions are described.


Proposed: Open trench installation of approximately 1.1 miles of 6-inch water main, 0.3 miles of 4-inch water main, 4 fire hydrants, and service assemblies for 50 residences along Sydney’s Loop, Kings Shortcut Road, and Martha’s Loop

Key Advantages Conventional technology

Key Disadvantages Bore & jack crossings of Sumter Highway (SC Highway 527)

Environmental Impacts Sediment control

Land Requirements 2-Acre disturbed area

Potential Construction Problems Interference with other utilities Traffic control Service transfers

Public Reaction Public would welcome the project

26



c. Preliminary Construction Costs

Based on the previously described preliminary designs, projections have been

made of the preliminary construction costs for the Jennyville Water Improvements

project. This projection, it should be noted, is based on 2016 dollars. Unit costs are

based on equipment manufacturer quotations, Hybrid Engineering, Inc.’s continuous

monitoring of work of a similar nature, and R.S. Means Construction Cost Data. The

overall Preliminary Project Cost Opinion is presented on the following page.

PRELIMINARY PROJECT COST OPINIONJENNYVILLE WATER IMPROVEMENTSTOWN OF KINGSTREEKINGSTREE, SCDATE: May 3, 2016

Grant-Eligible ItemsItem Description of Item Unit Estimated Unit Total No. Quantities Price Price

1 6” Water Main LF 5,630 $25 $140,7502 6" DI Water Main Threaded Thru Casing (per SCDOT) LF 80 $40 $3,2003 12" Steel Casing Pipe - Bore & Jack (per SCDOT) LF 80 $100 $8,0004 12"x6" Tapping Sleeve & Valve EA 4 $4,000 $16,0005 6" MJDI Gate Valve & Box EA 6 $1,000 $6,0006 6"x6" MJDI Tee EA 2 $400 $8007 6"x4" MJDI Tee EA 2 $300 $6008 6" MJDI 45

⁰ Bend EA 8 $400 $3,200

9 6" MJDI Cap EA 2 $300 $60010 4” Water Main LF 1,330 $20 $26,60011 4" MJDI Gate Valve & Box EA 2 $750 $1,50012 Fire Hydrant Assembly EA 4 $4,500 $18,00013 Concrete Valve Marker Post EA 7 $100 $70014 Remove & Replace Asphalt Roadway Pavement LF 125 $35 $4,37515 Remove & Replace Asphalt Driveway Pavement (@ 15 LF Per Crossing) LF 570 $30 $17,10016 1” PE Service Tubing (35 Residences @ Avg. 25' each in ROW) for LMI Residence LF 875 $6 $5,25017 1” PE Service Tubing (35 Residences @ Avg. 175' each on Private Property) for LMI Residence LF 6,125 $6 $36,75018 Service Saddle for LMI Residence EA 35 $200 $7,00019 Corporation Stop for LMI Residence EA 35 $125 $4,37520 3/4" Meter for LMI Residence EA 35 $300 $10,50021 Meter Box for LMI Residence EA 35 $150 $5,25022 Meter Yoke for LMI Residence EA 35 $250 $8,75023 Curb Stop for LMI Residence EA 35 $125 $4,37524 Connect to Existing System EA 4 $1,200 $4,80025 Grassing (10' Width for Length of Water Mains) AC 2 $2,000 $4,000

Sub-Total for Construction $338,475Grant Administration $40,000Survey, Design, Permitting & Construction Administration $29,169Construction Observation $18,498DHEC Water Construction Permit Application Fee $400DHEC Stormwater/Land Disturbance Permit Application Fee $325Wetland Delineation & Submittal of Jurisdictional Determination Request to the US Army Corps of Engineers $10,000TOTAL $436,867

Non Grant-Eligible ItemsItem Description of Item Unit Estimated Unit Total No. Quantities Price Price

1 1” PE Service Tubing (15 Residences @ Avg. 25' each in ROW) for Non-LMI Residence LF 375 $6 $2,2502 1” PE Service Tubing (15 Residences @ Avg. 175' each on Private Property) for Non-LMI Residence LF 2,625 $6 $15,7503 Service Saddle for Non-LMI Residence EA 15 $200 $3,0004 Corporation Stop for Non-LMI Residence EA 15 $125 $1,8755 3/4" Meter for Non-LMI Residence EA 15 $300 $4,5006 Meter Box for Non-LMI Residence EA 15 $150 $2,2507 Meter Yoke for Non-LMI Residence EA 15 $250 $3,7508 Curb Stop for Non-LMI Residence EA 15 $125 $1,875

TOTAL $35,250

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66.. SSEELLEECCTTIIOONN OOFF AALLTTEERRNNAATTIIVVEE

In examining the proposed Jennyville Water Improvements, it can be seen that

the construction of these improvements would result in many benefits to the citizens of

the Jennyville Community, to the Town’s existing water customers, and to the overall

Kingstree area. These benefits have been previously mentioned and described in detail.

The alternative to constructing these components of these improvements is essentially

the no action alternative. There are no substantive alternative routes that could be

utilized for the proposed pipeline improvements.

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77.. PPRROOPPOOSSEEDD PPRROOJJEECCTT

As has been noted, there are many components of the Town of Kingstree water

and wastewater system are, or will soon be, approaching the ends of their useful lives.

Accordingly, it is recommended that the Town of Kingstree proceed with Jennyville

Water Improvements project as proposed in this PER as soon as possible.

a. Project Design

The proposed project design would involve the following improvements:


Proposed: Open trench installation of approximately 1.1 miles of 6-inch water main, 0.3 miles of 4-inch water main, 4 fire hydrants, and service assemblies for 50 residences along Sydney’s Loop, Kings Shortcut Road, and Martha’s Loop

Key Advantages Conventional technology

Key Disadvantages Bore & jack crossings of Sumter Highway (SC Highway 527)

Environmental Impacts Sediment control

Land Requirements 2-Acre disturbed area

Potential Construction Problems Interference with other utilities Traffic control Service transfers

Public Reaction Public would welcome the project

The proposed project map and project cost opinion are presented on the following

pages.

Project Map Jennyville Water Improvements Town of Kingstree, SC April 3, 2016

Legend: Existing 12” Water Main Proposed 6” Water Main Proposed 4” Water Main Proposed Fire Hydrant

Existing 12-inch Water Main


Proposed Fire Hydrant


PRELIMINARY PROJECT COST OPINIONJENNYVILLE WATER IMPROVEMENTSTOWN OF KINGSTREEKINGSTREE, SCDATE: May 3, 2016

Grant-Eligible ItemsItem Description of Item Unit Estimated Unit Total No. Quantities Price Price

1 6” Water Main LF 5,630 $25 $140,7502 6" DI Water Main Threaded Thru Casing (per SCDOT) LF 80 $40 $3,2003 12" Steel Casing Pipe - Bore & Jack (per SCDOT) LF 80 $100 $8,0004 12"x6" Tapping Sleeve & Valve EA 4 $4,000 $16,0005 6" MJDI Gate Valve & Box EA 6 $1,000 $6,0006 6"x6" MJDI Tee EA 2 $400 $8007 6"x4" MJDI Tee EA 2 $300 $6008 6" MJDI 45

⁰ Bend EA 8 $400 $3,200

9 6" MJDI Cap EA 2 $300 $60010 4” Water Main LF 1,330 $20 $26,60011 4" MJDI Gate Valve & Box EA 2 $750 $1,50012 Fire Hydrant Assembly EA 4 $4,500 $18,00013 Concrete Valve Marker Post EA 7 $100 $70014 Remove & Replace Asphalt Roadway Pavement LF 125 $35 $4,37515 Remove & Replace Asphalt Driveway Pavement (@ 15 LF Per Crossing) LF 570 $30 $17,10016 1” PE Service Tubing (35 Residences @ Avg. 25' each in ROW) for LMI Residence LF 875 $6 $5,25017 1” PE Service Tubing (35 Residences @ Avg. 175' each on Private Property) for LMI Residence LF 6,125 $6 $36,75018 Service Saddle for LMI Residence EA 35 $200 $7,00019 Corporation Stop for LMI Residence EA 35 $125 $4,37520 3/4" Meter for LMI Residence EA 35 $300 $10,50021 Meter Box for LMI Residence EA 35 $150 $5,25022 Meter Yoke for LMI Residence EA 35 $250 $8,75023 Curb Stop for LMI Residence EA 35 $125 $4,37524 Connect to Existing System EA 4 $1,200 $4,80025 Grassing (10' Width for Length of Water Mains) AC 2 $2,000 $4,000

Sub-Total for Construction $338,475Grant Administration $40,000Survey, Design, Permitting & Construction Administration $29,169Construction Observation $18,498DHEC Water Construction Permit Application Fee $400DHEC Stormwater/Land Disturbance Permit Application Fee $325Wetland Delineation & Submittal of Jurisdictional Determination Request to the US Army Corps of Engineers $10,000TOTAL $436,867

Non Grant-Eligible ItemsItem Description of Item Unit Estimated Unit Total No. Quantities Price Price

1 1” PE Service Tubing (15 Residences @ Avg. 25' each in ROW) for Non-LMI Residence LF 375 $6 $2,2502 1” PE Service Tubing (15 Residences @ Avg. 175' each on Private Property) for Non-LMI Residence LF 2,625 $6 $15,7503 Service Saddle for Non-LMI Residence EA 15 $200 $3,0004 Corporation Stop for Non-LMI Residence EA 15 $125 $1,8755 3/4" Meter for Non-LMI Residence EA 15 $300 $4,5006 Meter Box for Non-LMI Residence EA 15 $150 $2,2507 Meter Yoke for Non-LMI Residence EA 15 $250 $3,7508 Curb Stop for Non-LMI Residence EA 15 $125 $1,875

TOTAL $35,250

32



88.. CCOONNCCLLUUSSIIOONNSS AANNDD RREECCOOMMMMEENNDDAATTIIOONNSS

Hybrid Engineering, Inc. is pleased to have had the opportunity to prepare this

PER for Jennyville Water Improvements for the Town of Kingstree. Development of this

PER has included the following tasks:

Assessment of current water systems conditions

Population and water demand projections

Evaluation of the proposed project components

Preliminary construction cost projection

Development of this PER for Jennyville Water Improvements

There are many benefits that can be realized as a result of the Town of Kingstree

undertaking the Jennyville Water Improvements. It is important to be reminded of these

benefits which are briefly summarized below:

Public Health Protection-The first obligation of any water supplier is to provide water that is safe for consumption. In a world where an estimated 3 million people die every year from preventable waterborne disease, water systems in North America allow one to drink from virtually any public tap with a high assurance of safety.

A safe water supply is critical to protecting the public health - the first obligation

of all water suppliers. Without our modern water systems, diseases such as

cholera and dysentery would be part of everyday life.

In the United States, water utilities monitor for more than 100 contaminants

and must meet close to 90 regulations for water safety and quality. Those

water standards are among the world's most stringent. States may also require

utilities to meet additional standards.

Community water supplies are tested every day. Tap water undergoes far

more frequent testing than bottled water.

Fire Protection-A well-maintained water system is critical in protecting communities from the ever-present threat of fire.

In most communities, water flowing to fire hydrants and home faucets is

transported by the same system of water mains, pumps, and storage tanks.

33



A water system that provides reliable water at a high pressure and volume can

be the difference between a manageable fire and an urban inferno.

The ability to provide water for fire protection heavily influences home

construction, location decisions, and insurance rates.

While firefighters are the primary operators of fire hydrants, the water utility is

usually responsible for maintaining the hydrants.

Quality of Life-Clean drinking water is more than a convenience; it is central to everyday lives.

Any measure of a successful society ― low mortality rates, economic diversity,

productivity, public safety ― is in some way related to access to safe water.

Clean drinking water is so intricately part of everyday life that one can hardly

imagine a day without it. Without tap water, how would one rinse produce, clean

dishes and clothes, water plants and landscapes and wash cars? Without tap

water, where would one shower? Without tap water, how many businesses

would have to suspend operations or relocate entirely? Without tap water, how

would community institutions from hospitals to firehouses to schools function?

The Jennyville Water Improvements can be successfully completed as proposed,

and it is recommended that the project be approved by the SC Department of

Commerce for CDBG funding. The project proposes to connect 6-inch water mains to

the existing 12-inch water main on Sumter Highway (SC Highway 527) and to extend

those 6-inch water mains along Sydney’s Loop to the east and along Martha’s Loop to

the west. Additionally, it is proposed that a 4-inch water main be extended along Kings

Short Cut Road and that it connect on each end to the proposed 6-inch water main

along Sydney’s Loop. The project would include approximately 1.1 miles of 6-inch water

main, 0.3 miles of 4-inch water main, 4 fire hydrants, and service assemblies for 50

residences most of whom are believed to be of low and moderate income.

Hybrid Engineering, Inc. again gratefully acknowledges the assistance and

cooperation of the Town of Kingstree’s staff without which, the development of this PER

could not have been possible.

Hybrid Engineering, Inc., 7400 Irmo Drive, Columbia, South Carolina 29212 P– 803.407.0472 F– 803.407.0473 hybrideng.com

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