Greenville Utilities Commission

The Division of Water Resources (DWR) provides the data contained within this Local Water Supply Plan (LWSP) as a courtesy and service to our customers. DWR staff does not field verify data. Neither DWR, nor any other party involved in the preparation of this LWSP attests that the data is completely free of errors and omissions. Furthermore, data users are cautioned that LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent review may result in significant revision. Questions regarding the accuracy or limitations of usage of this data should be directed to the water system and/or DWR.

1. System Information

Contact Information

Complete

Water System Name: Greenville Utilities Commission   PWSID: 04-74-010
Mailing Address:PO Box 1847
Greenville, NC 27835		Ownership:Municipality
 
Contact Person:Julius PatrickTitle:Water Treatment Facilities Manager
Phone:252-551-1561Cell/Mobile:--
 
Secondary Contact:Anthony Whitehead Phone:252-329-2160
Mailing Address:PO Box 1847
Greenville, NC 27835		Cell/Mobile:--
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 4-16 16.32 %
Cast Iron 4-18 11.21 %
Ductile Iron 4-36 5.28 %
Other 4-24 1.89 %
Polyvinyl Chloride 2-16 65.30 %
What are the estimated total miles of distribution system lines?   723 Miles
How many feet of distribution lines were replaced during 2022?   4,005 Feet
How many feet of new water mains were added during 2022?   2,490 Feet
How many meters were replaced in 2022?   1,794
How old are the oldest meters in this system?   15 Year(s)
How many meters for outdoor water use, such as irrigation, are not billed for sewer services?   1,584
What is this system's finished water storage capacity?   12.0000 Million Gallons
Has water pressure been inadequate in any part of the system since last update? Line breaks that were repaired quickly should not be included.   No
Programs
Does this system have a program to work or flush hydrants?   Yes, 2 Years or More
Does this system have a valve exercise program?   Yes, 2 Years or More
Does this system have a cross-connection program?   Yes
Does this system have a program to replace meters?   Yes
Does this system have a plumbing retrofit program?   No
Does this system have an active water conservation public education program?   Yes
Does this system have a leak detection program?   Yes

Each hydrant is inspected/operated at least every 5 years.
Critical valves are exercised/inspected annually, other valves have a goal of every 5 years.

Leak detection is initiated whenever Greenville Utilities Commission (GUC) water system's annual average unaccounted-for losses exceed AWWA standards for comparable systems or whenever there is a known or suspected significant leak. The GUC water system is divided into 10 geographically defined zones and is systematically visually inspected. Priority crossings at waterways are also inspected. Leak detection equipment (FUJI DNR-18) is utilized by trained GUC personnel to pinpoint leaks not readily detectable by visual observation or where the location of the leak cannot otherwise be adequately determined. In addition, pressure points are monitored via SCADA and additional sensors were recently installed to collect, analyze and alert for abnormal transients in the system. Significant leaks are repaired immediately following detection and all minor leaks are repaired as soon as practical following their detection.

Water Conservation
What type of rate structure is used?   Uniform
How much reclaimed water does this system use?   0.0000 MGD   For how many connections?   0
Does this system have an interconnection with another system capable of providing water in an emergency?   Yes

GUC does have several emergency interconnects with several neighboring systems (Bell Arthur, Eastern Pines, Farmville, and Winterville), that could supply a portion of our needs, but none are large enough to meet our total need for water. There are no other systems in close proximity with line or pumping capacity.

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Tar River (15-1)73 %
Neuse River (10-1)27 %
County(s)% of Service Population
Pitt100 %
What was the year-round population served in 2022?   120,870
Has this system acquired another system since last report?   No
Water Use by Type
Type of Use Metered
Connections		 Metered
Average Use (MGD)		 Non-Metered
Connections		 Non-Metered
Estimated Use (MGD)
Residential 34,993 6.3800 0 0.0000
Commercial 3,629 2.8400 0 0.0000
Industrial 19 1.1500 0 0.0000
Institutional 0 0.0000 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   2.3000 MGD

The meter connections include Bethel which was acquired in July 2021.
System processes=Average day raw water demand-Average day total water use by type-Average day wholesale usage

Water Sales
Purchaser PWSID Average
Daily Sold
(MGD)		 Days
Used		 Contract Required to
comply with water
use restrictions?		 Pipe Size(s)
(Inches)		 Use
Type
MGD Expiration Recurring
Bell Arthur WC 04-74-045 0.0000 0 0.0000 No No 6 Emergency
Eastern Pines WC 04-74-015 0.0000 0 0.0000 No No 6 Emergency
Farmville 04-74-020 0.8600 190 1.2000 2056 Yes Yes 20 Regular
Greene County 04-40-106 1.3550 186 2.1440 2056 Yes Yes 24 Regular
Stokes Regional Water Corporation 04-74-060 0.2820 361 0.5000 2048 Yes Yes 8 Regular
Winterville 04-74-040 0.3770 365 0.6000 2034 Yes Yes 10 Regular

3. Water Supply Sources

Monthly Withdrawals & Purchases
Average Daily
Use (MGD)		 Max Day
Use (MGD)		 Average Daily
Use (MGD)		 Max Day
Use (MGD)		 Average Daily
Use (MGD)		 Max Day
Use (MGD)
Jan 14.6920 16.5940 May 14.5130 19.5990 Sep 15.7710 17.6340
Feb 14.8230 16.4910 Jun 16.3610 19.8120 Oct 16.7390 19.0620
Mar 14.7290 16.2350 Jul 15.4830 17.0480 Nov 15.9390 17.8080
Apr 14.6130 17.5460 Aug 15.9140 18.6620 Dec 15.9940 19.6340

Ground Water Sources
Name or Number Average Daily Withdrawal (MGD) Max Day Withdrawal (MGD) 12-Hour Supply
(MGD)		 CUA Reduction Year Offline Use Type
MGD Days Used
ASR 0.0000 0 0.0000 0.3600 CUA25 Emergency
ASR-Inject 0.0000 0 0.0000 0.3600 CUA0 Emergency
BWW 0.0000 0 0.2160 CUA25 Emergency
ESW 0.0000 0 0.2088 CUA25 Emergency
EW2 0.2280 2 0.3490 0.2592 CUA25 Regular
EW2 0.1470 2 0.2247 0.1692 CUA25 Regular
IBW 0.0000 0 0.2232 CUA25 Emergency
NGW 0.0000 0 0.1980 CUA25 Emergency
NSW 0.0000 0 0.1368 CUA25 Emergency
TW1 0.0000 0 0.0000 0.7200 CUA25 Emergency
WSW 0.1420 2 0.2144 0.1440 CUA25 Regular
Ground Water Sources (continued)
Name or Number Well Depth (Feet) Casing Depth
(Feet)		 Screen Depth (Feet) Well Diameter (Inches) Pump Intake Depth (Feet) Metered?
Top Bottom
ASR 399 350 365 12 347 Yes
ASR-Inject 399 350 365 12 347 Yes
BWW 435 251 430 12 282 Yes
ESW 487 210 484 6 192 Yes
EW2 458 192 458 14 246 Yes
EW2 452 210 452 12 201 Yes
IBW 429 250 424 12 240 Yes
NGW 489 260 404 6 210 Yes
NSW 454 176 454 14 245 Yes
TW1 399 317 372 10 310 Yes
WSW 417 166 417 6 189 Yes
Are ground water levels monitored?   Yes, Monthly
Does this system have a wellhead protection program?   Yes
Surface Water Sources
Stream Reservoir Average Daily Withdrawal Maximum Day
Withdrawal (MGD)		 Available Raw
Water Supply		 Usable On-Stream
Raw Water Supply
Storage (MG)
MGD Days Used MGD * Qualifier
Tar River 15.4640 365 0.0000 22.5000 F 25.0000

* Qualifier: C=Contract Amount, SY20=20-year Safe Yield, SY50=50-year Safe Yield, F=20% of 7Q10 or other instream flow requirement, CUA=Capacity Use Area Permit

Surface Water Sources (continued)
Stream Reservoir Drainage Area
(sq mi)		 Metered? Sub-Basin County Year
Offline		 Use
Type
Tar River 2,620 Yes Tar River (15-1) Pitt Regular
What is this system's off-stream raw water supply storage capacity?   63 Million gallons
Are surface water sources monitored?   Yes, Daily
Are you required to maintain minimum flows downstream of its intake or dam?   No
Does this system anticipate transferring surface water between river basins?   Yes
Water Purchases From Other Systems
Seller PWSID Average
Daily Purchased
(MGD)		 Days
Used		 Contract Required to
comply with water
use restrictions?		 Pipe Size(s)
(Inches)		 Use
Type
MGD Expiration Recurring
Bell Arthur WC 04-74-045 0.0000 0 0.0000 No No 6 Emergency
Eastern Pines WC 04-74-015 0.0000 0 0.0000 No No 6 Emergency
Town of Farmville 04-74-020 0.0000 0 Yes Yes 24 Emergency
Winterville 04-74-040 0.0000 0 0.0000 Yes Yes 10 Emergency
Water Treatment Plants
Plant Name Permitted Capacity
(MGD)		 Is Raw Water Metered? Is Finished Water Ouput Metered? Source
Greenville Utilities Commissio 22.5000 Yes Yes Tar River
Did average daily water production exceed 80% of approved plant capacity for five consecutive days during 2022?  No
     If yes, was any water conservation implemented?  
Did average daily water production exceed 90% of approved plant capacity for five consecutive days during 2022?  No
     If yes, was any water conservation implemented?  
Are peak day demands expected to exceed the water treatment plant capacity in the next 10 years?  Yes

May 2018 PER projects peak day to exceed WTP capacity within the next 10 years.
Construction began in October 2020 for 32 MGD upgrade. Project will be complete third quarter 2023.

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)		 Average Daily
Discharge (MGD)
Jan 12.2890 May 11.4700 Sep 10.4850
Feb 11.8520 Jun 11.2320 Oct 10.3560
Mar 11.4390 Jul 11.0900 Nov 10.3030
Apr 11.4800 Aug 10.6320 Dec 10.6250

How many sewer connections does this system have?   32,349
How many water service connections with septic systems does this system have?   5,950
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   No
Wastewater Permits
Permit Number Type Permitted Capacity
(MGD)		 Design Capacity
(MGD)		 Average Annual
Daily Discharge
(MGD)		 Maximum Day Discharge
(MGD)		 Receiving Stream Receiving Basin
NC0023931 WWTP 17.5000 17.5000 10.4180 14.5000 Tar River Tar River (15-1)
NC0082139 WTP 1.0000 0.5000 0.6868 1.3000 Tar River Tar River (15-1)
Wastewater Interconnections
Water System PWSID Type Average Daily Amount Contract
Maximum (MGD)
MGD Days Used
Grimesland 04-74-055 Receiving 0.0300 365 0.0700

5. Planning

Projections
  2022 2030 2040 2050 2060 2070
Year-Round Population 120,870 162,072 215,273 285,938 356,603 389,000
Seasonal Population 0 0 0 0 0 0
 
Residential 6.3800 8.3500 10.9000 14.4500 18.1500 20.5500
Commercial 2.8400 3.7240 4.8610 6.4450 8.0950 9.1650
Industrial 1.1500 1.5030 1.9620 2.6010 3.2670 3.6990
Institutional 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
System Process 2.3000 3.1220 4.0770 5.4040 4.9180 7.6860
Unaccounted-for 1.0027 1.3216 1.7252 2.2871 2.7248 3.2526

Population projection data was exported from the GUC 2018 Preliminary Engineering Report for the WTP Phase 1 Upgrade. Projections were developed using a statistical analysis of historical population. Best fit projection annual growth rate of 2.9% was used for this plan.
Demand projections are from the 2018 Preliminary Engineering Report for WTP Phase 1 Upgrade. The report provided low growth, best fit and high growth projections. The demand projections used for the LWSP were the best fit projections.

The water use projections were exported from the 2018 PER and excludes wholesale demand-2030-16.7 MGD; 2040-21.8 MGD; 2050-28.9 MGD; 2060-36.3MGD; 2070-41.1 MGD. The break down into user types was accomplished by using the average day water pumped for 2021, 15.464 MGD - 2.762 MGD wholesale usage (12.702 MGD) and dividing it by user type to determine the percentage of water for each and then applying those percentages to the projections numbers. For example, residential use for 2022 was 6.38 MGD divided by 12.702 MGD=.502 or 50.0%; The percentages used for projections by type are: Residential 50.0%, Commercial 22.3%, Industrial 9%, System Processes 18.7%

Future Supply Sources
Source Name PWSID Source Type Additional Supply Year Online Year Offline Type
Tar River 04-74-010 Surface 9.5000 2023 Regular
Tar River 04-74-010 Surface 10.0000 2035 Regular
Tar River 04-74-010 Surface 10.0000 2050 Regular
Tar River 04-74-010 Surface 10.0000 2065 Regular

Future water plant expansions and timeframes are referenced in the 2018 Greenville Utilities Preliminary Engineering Report.

32 MGD upgrade project began in October 2020 and expected to be completed in the third quarter 2023.

Demand v/s Percent of Supply
  2022 2030 2040 2050 2060 2070
Surface Water Supply 22.5000 22.5000 22.5000 22.5000 22.5000 22.5000
Ground Water Supply 0.3011 0.3011 0.3011 0.3011 0.3011 0.3011
Purchases 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Future Supplies 9.5000 19.5000 29.5000 29.5000 39.5000
Total Available Supply (MGD) 22.8011 32.3011 42.3011 52.3011 52.3011 62.3011
Service Area Demand 13.6727 18.0206 23.5252 31.1871 37.1548 44.3526
Sales 1.7941 4.4440 4.4440 4.4440 4.4440 4.4440
Future Sales 0.0000 0.0000 0.0000 0.0000 0.0000
Total Demand (MGD) 15.4668 22.4646 27.9692 35.6311 41.5988 48.7966
Demand as Percent of Supply 68% 70% 66% 68% 80% 78%

The purpose of the above chart is to show a general indication of how the long-term per capita water demand changes over time. The per capita water demand may actually be different than indicated due to seasonal populations and the accuracy of data submitted. Water systems that have calculated long-term per capita water demand based on a methodology that produces different results may submit their information in the notes field.

Your long-term water demand is 53 gallons per capita per day. What demand management practices do you plan to implement to reduce the per capita water demand (i.e. conduct regular water audits, implement a plumbing retrofit program, employ practices such as rainwater harvesting or reclaimed water)? If these practices are covered elsewhere in your plan, indicate where the practices are discussed here.    

Are there other demand management practices you will implement to reduce your future supply needs?   

What supplies other than the ones listed in future supplies are being considered to meet your future supply needs?   

How does the water system intend to implement the demand management and supply planning components above?   

Additional Information

Has this system participated in regional water supply or water use planning?  Yes, es, Regional water supply planning with adjacent systems have come about due to the CCPCUA and the necessity for these systems to find alternate water sources. Greenville Utilities Commission (GUC) has become a regional water supplier for these systems as a result of this planning. GUC acquired Bethel system in 2021. Bethel was previously a wholesale customer. 2011 In addition, GUC and the Neuse Regional Water & Sewer Authority completed a feasibility study that examined the potential for an interconnect between the two systems.

What major water supply reports or studies were used for planning?  2013 Tar River Flow Study
2014 Water Treatment Plant Master Plan
2018 Phase I Preliminary Engineering Report

Please describe any other needs or issues regarding your water supply sources, any water system deficiencies or needed improvements (storage, treatment, etc.) or your ability to meet present and future water needs. Include both quantity and quality considerations, as well as financial, technical, managerial, permitting, and compliance issues:   

The Division of Water Resources (DWR) provides the data contained within this Local Water Supply Plan (LWSP) as a courtesy and service to our customers. DWR staff does not field verify data. Neither DWR, nor any other party involved in the preparation of this LWSP attests that the data is completely free of errors and omissions. Furthermore, data users are cautioned that LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent review may result in significant revision. Questions regarding the accuracy or limitations of usage of this data should be directed to the water system and/or DWR.