20051457 Ver 1_FW Revised 8-15-12 Draft.msg_20120815

Strickland, Bev
From: Peele, Linwood [linwood.peele @ncdenr.gov]
Sent: Wednesday, August 15, 2012 3:26 PM
To: Reeder, Tom; Fransen, Tom
Subject: FW: Revised 8 -15 -12 Draft
Attachments: Analysis of Future Water Supply Needs Broad River Basin 8 -15 -12 PM DRAFT.docx
113MR-Offlo,
Please see attached a preliminary draft report for the water systems in the Broad River Basin, please review and
comment.
Thanks,
Li nwood
From: Ramsey, Dennis R
Sent: Wednesday, August 15, 2012 2:48 PM
To: Peele, Linwood; Spencer, Lee G
Subject: Revised 8 -15 -12 Draft
Linwood and Lee
Please find attached a revised version of the Very Preliminary Analysis of Future Water Supply Needs and Availability for
2060— Broad River Basin. It is the 8 -15 -12 PM DRAFT. The only change is that I updated the population projections on
page 2 based on the most recent information from the NC OSBM. The new numbers show an even slower rate of
growth in the basin than the previous numbers from the March 2012 report. An example is that the projected rate of
growth in Cleveland County from 2010 to 2030 dropped from 5% to 1.4 %.
Thanks
Dennis

DRAFT August 15, 2012
VERY PRELIMINARY
ANALYSIS OF FUTURE WATER SUPPLY NEEDS AND AVAILABILITY FOR
2060
BROAD RIVER REGION
The Broad River Basin in located in western North Carolina and covers all of Cleveland,
Rutherford and Polk Counties and small areas of Buncombe, Gaston, Henderson,
Lincoln, and McDowell Counties. For the purpose of this Preliminary Analysis, the only
systems to be evaluated are those water systems in Cleveland, Rutherford and Polk
Counties that use the Broad River and its tributaries as their water source.
While there are other water utilities located in the basin, they were not included in this
preliminary analysis since their sources of water are either groundwater or purchases
from other utilities. And in the case of Tryon, they withdraw from Lake Lanier located
in South Carolina, and have a system interconnection with the City of Hendersonville.
Since this was a very preliminary analysis, the information used was largely from
file information. Due to time constraints data verification was limited. Before the
Analysis can be completed, input will be obtained from the DWR Regional staff and
discussions held with each of the utilities covered by this Analysis.
Page 1 of 10

DRAFT August 15, 2012
WATER SYSTEMS TO BE DISCUSSED
Broad River Water Authority Rutherford County
City of Kings Mountain Cleveland County
City of Shelby Cleveland County
Cleveland County Water Cleveland County
Town of Forest City Rutherford County
The first step in this process was to review the 2011 Local Water Supply Plans (LWSP)
submitted by the Broad River Water Authority, the City of Kings Mountain, the City of
Shelby, Cleveland County Water and the Town of Forest City. The review also included
an evaluation of two reports developed for Cleveland County Water. The first is a
Purpose and Need Report prepared by ARCADIS G &M of NC, Inc. dated May 2011 and
the other is a Preliminary Alternatives Report prepared by McGill Associates dated
August 10, 2011.
The projected water needs for year 2060 was chosen so as to be consistent with the long
term planning projections in the LWSPs.
Two items have a significant impact
future needs in this region:
Due to the loss of numerous water intensive industries over the past decade, many
of the water systems in the region have water treatment plants that have large
volumes of excess capacity.
According to information from the North Carolina Office of State Budget and
Management on August 15, 2012, the projected growth rate of the regions from
2010 to 2030 is significantly below the projected state average of 22% for the
same time period.
The projected growth rate for each county is as follows:
COUNTY 2010 POPULATION 2030 POPULATION CHANGE %
Cleveland
98,078
99,787
+1,709
+1.7
Polk
20,510
20,587
+77
+0.4
Rutherford
67,810
77,425
+9,615
+14
Page 2 of 10

DRAFT August 15, 2012
EXISTING WATER SUPPLIES
The design capacity or safe yield of the existing water supply sources for each of the
evaluated utilities is as follows:
UTILITY
Broad River Water Authority
City Kings Mountain
City Shelby
VOLUME (MGD)
SOURCE
12.0
Broad River
16.1
Moss Lake
18.0
First Broad River
9.0
Broad River*
Cleveland County Water 10.0 First Broad River
Town of Forest City 12.0 Second Broad River
12.0 Broad River*
Total 89.1 MGD
* These sources are available but the permanent infrastructure is not currently in place to
withdraw and transport the water to the water treatment plants.
The existing water treatment capacity. the 2011 Annual Average Daily Demand (AADD)
and the Maximum Day Demand during 2011 for each of the evaluated utilities is as
follows:
UTILITY TREATMENT AADD (MGD) Max Day (MGD)
CAPACITY (MGD)
Broad `River Water Authority 8.0 5.348 8.129 (Sept.)
City of Kings Mountain 8.0 2.619 5.335 (Nov.)
City of Shelby 12.0 4.038 6.289 (Aug.)
Cleveland County Water 6.0 4.249 5.429 (July)
Town of Forest City 9.0 2.05 3.5
Total
43.0 MGD 18.304 MGD
Page 3 of 10

DRAFT August 15, 2012
PROJECTED ANNAUL AVERAGE DAILY DEMANDS FOR 2060
UTILITY VOLUME (MGD) ADJUSTED VOLUME (MGD)
Broad River Water Authority 3.424 7.424
City of Kings Mountain 5.851 9.351
City of Shelby 6.049
Cleveland County Water 7.91
Town of Forest City 3.168
*The projected 2060 values for the Broad River Water Authority and the City of Kings
Mountain in their 2011 LWSPs may be low since they do not include significant sales
volumes after 2020 due to the expiration dates in existing sales contracts.
In the case of the Broad River Water Authority, the contract which expires in
2024 is with the Inman Campobello Water District for 4.0 MGD. If this contract
remains in place and if they sell the full 4.0 MGD, the 2060 projected average
daily demand would increase from 3.424 MGD to 7.424 MGD.
In the case of Kings Mountain, the contract which expires in 2021 is with
Bessemer City for 3.5 MGD. If this contract is extended to 2060 and if they sell
the full 3.5 MGD, the 2060 projected average daily demand would increase from
5.851 MGD to 9.351 MGD.
Page 4 of 10

DRAFT August 15, 2012
Total Average Annual Daily Demands through 2060, Total Adjusted Average Annual Daily
Demands through 2060, Current Treatment Capacities and Current Available Water Supplies for
the Broad River Water Authority, City of Kings Mountain, City of Shelby, Cleveland County Water,
and Town of Forest City
IN
100
90
80
70
60
50
40
30
20
10
0
2011 2020 2030 2040 2050 2060
❑Average Annual Daily Demand
12 Adjusted Average Annual Daily
Demand
Available Treatment Capacity
Available Water Supply
The Adjusted Annual Daily Demand projects that the contract for Broad River Water
Authority to sell 4 MGD to the Inman Campobello Water District is extended to 2060
and that the full 4 MGD is used and the contract for Kings Mountain to sell 3.5 MGD of
water to Bessemer City is extended to 2060 and that the full 3.5 MGD is used.
Average Annual Daily Demands, Adjusted Average Annual Daily Demands,
Current Treatment Capacity and Current Available Water Supply for the Broad
River Water Authority
14
12
10
M 8
G
6
D
4
2
0
2011 2020 2030 2040 2050 2060
❑Average Annual Daily Demand
91 Adjusted Average Annual Daily
Demand
Available Treatment Capacity
■ Available Water Supply
The Adjusted Annual Daily Demand projects that the contract to sell 4 MGD to the
Inman Campobello Water District is extended to 2060 and that the full 4 MGD is used.
Page 5 of 10

DRAFT August 15, 2012
Average Annual Daily Demands, Adjusted Average Annual Daily Demands,
Current Treatment Capacity and Current Available Water Supply for the City of
Kings Mountain
18
16
14
12
M 10
G
8
D
6
4
2
0
2011 2020 2030 2040 2050 2060
❑ Average Annual Daily Demand
E2 Adjusted Annual Daily Demand
Available Treatment Capacity
Available Water Supply
The Adjusted Annual Daily Demand projects that the contract to sell 3.5 MGD of
water to Bessermer City is extended to 2060 and that the full 3.5 MGD is used.
Average Annual Daily Demands, Current Treatment Capacity and Current
Available Water Supply for the City of Shelby
30
25
20
M 15
G 10
D
5
0
2011 2020 2030 2040 2050 2060
Page 6 of 10
❑Average Annual Daily Demand
Available Treatment Capacity
■ Available Water Supply

DRAFT August 15, 2012
Average Annual Daily Demands, Current Treatment Capacity and Current
Available Water Supply for Cleveland County Water
12
10
8
❑Average Annual Daily Demand
Available Treatment Capacity
INT, Vit
���,ti I ■ Available Water Supply
G 4 l( ��iy�t �4y7t iy(j
;�i'r'i� z�llit
0 z�ll�t
..m. ��. ,;� ......
2011 2020 2030 2040 2050 2060
Average Annual Daily Demands, Current Treatment Capacity and Current
Available Water Supply for the Town of Forest City
14
12
10
8
M 6
G
4
D
2
I
2011 2020 2030 2040 2050 2060
Page 7 of 10
❑Average Annual Daily Demand
Available Treatment Capacity
■ Available Water Supply

DRAFT August 15, 2012
SYSTEMS' ABILITY TO MEET FUTURE WATER DEMANDS
Broad River Basin
The water systems in Cleveland, Rutherford and Polk Counties are very fortunate to have
the Broad River and its tributaries available as a water source. While the locations of
some of the current intakes on tributaries to the Broad River may present challenges in
the future, the Broad River itself should have adequate flows to meet all the region's
projected needs.
Cleveland County
City of Kings Mountain
In 2060, the projected annual average water needs of Kings Mountain (5.851 MGD) is
only 73% of its existing treatment capacity of 8 MGD and only 36% of its available
surface water supply. If the contract to sell 3.5 MGD of water to Bessemer City is
extended to 2060, the projected need increases to 9.351 MGD and will exceed the
capacity of the existing water plant. That increased flow would however only equal 58 %
of the available water supply.
City of Shelby
In 2060, the projected annual average water need of Shelby (6.049 MGD) is only 50% of
its existing treatment capacity and only 34 % of its available surface water supply from
the First Broad River. This 34% does not take into account the existing emergency /future
intake on the Broad River of 9 MGD.
Cleveland County Water
The only system in Cleveland County that is projected to reach near 80% of its available
water supply in 2060 is Cleveland County Water. The Preliminary Alternatives Report
prepared for Cleveland County Water by McGill Associates dated August 10, 2011,
projected an annual water supply need in 2060 of 7.91 MGD or 79% of its available
water supply. It is also well over its water treatment plant capacity of 6 MGD (132 %).
Rutherford County
Broad River Water Authority
In 2060, the projected annual average water needs of the Broad River Water Authority
(3.424 MGD) is only 43 % of its existing treatment capacity of 8 MGD and only 29 % of
its available surface water supply. The projected flow in the 2011 LWSP is based on the
assumption that the existing contract with the Inman Campobello Water District in South
Carolina to sell up to 4.0 MGD that expires in 2024 will not be renewed. If this contract
is extended and the full 4.0 is used, the projected annual daily average need would
Page 8 of 10

DRAFT August 15, 2012
increase to 7.424 MGD. This would equal 93% of the existing treatment capacity but
only 62% of its available water supply.
Forest City
In 2060, the projected annual average water need of Forest City (3.168 MGD) is only
40% of its existing treatment capacity and only 26% of its available surface water supply
from the Second Broad River. This 26% does not take into account the existing
emergency /future intake on the Broad River of an additional 12 MGD.
SPECIAL CHALLENGES
1. The only water utility in the Broad River Basin that is currently projecting a water
need in 2060 that may exceed its existing water supply source is Cleveland County
Water. Fortunately the utility has a number of options available to satisfy this need.
In a letter dated April 2, 2012, the Town of Forest City offered to enter into a
contract with Cleveland County Water to sell up to 4.0 MGD of treated water. Since
Forest City is projecting to have that volume available in 2060, this appears to be a
viable solution to the water needs projected by Cleveland County Water.
While the purchase of water from Forest City appears to be a viable option it would
likely not be the only option available. Fortunately, both Kings Mountain and
Shelby are also projecting to have sufficient water available in 2060 to supply some
or all of the projected water need by Cleveland County Water.
2. Based on current projected _water needs for 2060, Cleveland County Water may need
to expand it water 'treatment plant on the First Broad River or construct a new
facility, if it elects not to purchase treated water from one or more of the neighboring
water systems with projected excess capacity.
3. Depending on the future need to supply treated water to other utilities, water
treatment plant expansions may also be needed by the Broad River Water Authority,
Forest City, and /or Kings Mountain.
4. While the utilities in the Broad River Basin should have adequate water supplies to
meet their average annual daily needs for 2060, they all need to continue to evaluate
and implement options to meet their peak daily demands.
5. While each water system discussed above is fortunate to have a water supply
available to meet their projected average annual daily needs through 2060, they all
Page 9 of 10

DRAFT August 15, 2012
need to continue their current water conservation practices and continue to evaluate
and implement additional practices.
SUMMARY
To summarize, the primary point that emerged from the analysis of the future water
supply requirements for the Broad River Basin is the need to address the projected long
term water supply availability for Cleveland County Water. Fortunately, due to both the
projected excess capacity in several of the other utilities in the region and the proximity
of the main stem of the Broad River, several viable options appear available to meet this
need. One option would be the purchase of treated water from another utility or other
utilities in the region. Another option may be to locate a new raw water intake on the
Broad River to supply the needed water to a water plant owned by Cleveland County
Water.
Before an evaluation of suitable alternatives, an item that needs additional review is the
projected water needs proposed for Cleveland County Water in a Purpose and Need
Report prepared by ARCADIS G &M of North Carolina, Inc. dated May, 2011. Current
population projects for Cleveland County are less than those used in the Report to
project water needs for 2060. Also the report may be overly optimistic about the
number of homes in their service area currently on groundwater wells that will become
Cleveland County Water customers by 2060.
The other utilities in the region appear to have access to existing adequate supplies of
water to meet their needs through '2060. Water treatment plant expansions may be
needed by some utilities, but all the utilities appear to have adequate time before that
extra treatment capacity is need to adequately plan for that need.
Page 10 of 10