Monroe

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

Provisional

Water System Name: Monroe   PWSID: 01-90-010
Mailing Address:P.O. Box 69
Monroe, NC 28111
Ownership:Municipality
 
Contact Person:David RankinTitle:WTP Superintendent
Phone:704-282-4668Cell/Mobile:704-661-2131
 
Secondary Contact:Amy F. Cook, PE Phone:704-282-4604
Mailing Address:PO Box 69
Monroe, NC 28111
Cell/Mobile:704-451-2368
Distribution System
Line Type Size Range (Inches) Estimated % of lines
Asbestos Cement 4-16 22.08 %
Cast Iron 2-14 5.63 %
Ductile Iron 2-30 17.97 %
Galvanized Iron 2 3.71 %
Other 6-12 0.18 %
Polyvinyl Chloride 2-12 50.43 %
What are the estimated total miles of distribution system lines?   323 Miles
How many feet of distribution lines were replaced during 2024?   4,800 Feet
How many feet of new water mains were added during 2024?   84,435 Feet
How many meters were replaced in 2024?   482
How old are the oldest meters in this system?   23 Year(s)
How many meters for outdoor water use, such as irrigation, are not billed for sewer services?   507
What is this system's finished water storage capacity?   7.2500 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, Annually
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

Pressure monitors placed on hydrants strategically throughout the system.

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?   1
Does this system have an interconnection with another system capable of providing water in an emergency?   Yes

2. Water Use Information

Service Area
Sub-Basin(s)% of Service Population
Rocky River (18-4)98 %
Catawba River (03-1)2 %
County(s)% of Service Population
Union100 %
What was the year-round population served in 2024?   39,877
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 13,223 2.1200 0 0.0000
Commercial 2,043 0.9400 0 0.0000
Industrial 52 2.5100 0 0.0000
Institutional 100 0.2600 0 0.0000

How much water was used for system processes (backwash, line cleaning, flushing, etc.)?   0.7000 MGD

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
Union County 01-90-413 0.0000 0 0.0000 2120 Yes Yes 8-16 Emergency

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 6.1210 7.2580 May 6.5820 7.8340 Sep 7.0570 8.2520
Feb 6.0480 7.4140 Jun 7.4110 8.7610 Oct 7.0210 8.4020
Mar 5.8000 7.0170 Jul 7.5240 8.8880 Nov 6.7240 9.0830
Apr 6.2460 7.7410 Aug 7.4970 8.6510 Dec 6.3580 8.1340

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
Richardson Creek Lake Lee and Monroe 0.0000 0 0.0000 2.3000 SY50 690.0000
Stewart Creek Lake Twitty 6.3900 365 9.0830 7.1000 SY50 2,074.0000

* 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
Richardson Creek Lake Lee and Monroe 52 Yes Rocky River (18-4) Union Regular
Stewart Creek Lake Twitty 34 Yes Rocky River (18-4) Union Regular
What is this system's off-stream raw water supply storage capacity?   2,760 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?   No
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
Union County 01-90-413 0.7600 126 1.9900 2099 Yes No 8-16 Regular
Water Treatment Plants
Plant Name Permitted Capacity
(MGD)
Is Raw Water Metered? Is Finished Water Ouput Metered? Source
John Glenn WTP 11.0000 Yes Yes Lakes Twitty, Lee, and Monroe
Did average daily water production exceed 80% of approved plant capacity for five consecutive days during 2024?  No
     If yes, was any water conservation implemented?  
Did average daily water production exceed 90% of approved plant capacity for five consecutive days during 2024?  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?  No

4. Wastewater Information

Monthly Discharges
Average Daily
Discharge (MGD)
Average Daily
Discharge (MGD)
Average Daily
Discharge (MGD)
Jan 10.6200 May 7.4260 Sep 7.8260
Feb 7.3300 Jun 5.5570 Oct 6.2850
Mar 10.3400 Jul 6.1900 Nov 5.6730
Apr 6.5610 Aug 7.4050 Dec 6.4870

How many sewer connections does this system have?   13,453
How many water service connections with septic systems does this system have?   1,119
Are there plans to build or expand wastewater treatment facilities in the next 10 years?   Yes

Wastewater treatment plant expansion of 3 MGD (future treatment capacity of 13.4 MGD) planned within the next 10 years.

Wastewater Permits
Permit Number Type Permitted Capacity
(MGD)
Design Capacity
(MGD)
Average Annual
Daily Discharge
(MGD)
Maximum Day Discharge
(MGD)
Receiving Stream Receiving Basin
NC0024333 WWTP 10.4000 10.4000 7.3100 18.8860 Richardson Creek Rocky River (18-4)
NC0080381 WTP 0.9306 1.4000 0.7120 0.9400 Stewart Creek Rocky River (18-4)
Wastewater Interconnections
Water System PWSID Type Average Daily Amount Contract
Maximum (MGD)
MGD Days Used
Union County 01-90-413 Receiving 1.4520 365 2.6500

5. Planning

Projections
  2024 2030 2040 2050 2060 2070
Year-Round Population 39,877 44,908 54,743 66,731 81,345 99,159
Seasonal Population 0 0 0 0 0 0
 
Residential 2.1200 2.4350 2.9690 3.6190 4.4110 5.3770
Commercial 0.9400 1.0800 1.3160 1.6040 1.9560 2.3840
Industrial 2.5100 2.5990 2.7320 2.8720 3.0190 3.1730
Institutional 0.2600 0.2990 0.3640 0.4440 0.5410 0.6590
System Process 0.7000 0.8040 0.9800 1.1950 1.4560 1.7750
Unaccounted-for 0.1042 0.1152 0.1334 0.1553 0.1816 0.2133

Estimated 2024 population data obtained from https://worldpopulationreview.com/us-cities/north-carolina/monroe and projected to grow at 2% per year.
Water use projected at 2% annual growth.

Future Supply Sources
Source Name PWSID Source Type Additional Supply Year Online Year Offline Type
Additional Filter at John Glenn WTP 01-90-010 Surface 2.0000 2032 Regular
Lake Twitty Augmentation Ph 1 01-90-010 Surface 2.0000 2036 Regular
Union County - Catawba Ph 1 01-90-413 Surface 0.0000 2032 Regular
Union County - Catawba Ph 2 01-90-413 Surface 0.0000 2042 Regular
Demand v/s Percent of Supply
  2024 2030 2040 2050 2060 2070
Surface Water Supply 9.4000 9.4000 9.4000 9.4000 9.4000 9.4000
Ground Water Supply 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Purchases 1.9900 1.9900 1.9900 1.9900 1.9900 1.9900
Future Supplies 0.0000 4.0000 4.0000 4.0000 4.0000
Total Available Supply (MGD) 11.3900 11.3900 15.3900 15.3900 15.3900 15.3900
Service Area Demand 6.6342 7.3322 8.4944 9.8893 11.5646 13.5813
Sales 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Future Sales 0.0000 0.0000 0.0000 0.0000 0.0000
Total Demand (MGD) 6.6342 7.3322 8.4944 9.8893 11.5646 13.5813
Demand as Percent of Supply 58% 64% 55% 64% 75% 88%

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.    No changes.

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, City of Monroe is a member of the Yadkin Pee-Dee Water Management Group and provides input on studies performed.
Ongoing negotiation with surrounding systems including Union and Anson Counties.

What major water supply reports or studies were used for planning?  Local Water Supply Plan Summary prepared for Yadkin Pee-Dee Water Management Group by Fountainworks in March, 2018.
City of Monroe Water Supply Evaluation, City Lake Raw Water Augmentation, prepared by Black and Veatch, February, 2022.
City of Monroe Water Supply Evaluation, John Glenn WTP Expansion Evaluation, prepared by Black and Veatch, December, 2021
City of Monroe Water Supply Evaluation, John Glenn WTP Chemical Facilities Expansion Evaluation, prepared by Black and Veatch, December, 2021

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:   Chemical storage facilities to be expanded to allow for 30 days available storage at current plant capacity with ability to increase storage for future increased capacity.
Filter #4 to be added to minimize reduction of production capacity during future maintenance and repair of existing filters.
Evaluation of be completed for retrofit of existing sediment basins and/or addition of sediment basin #4.
City is evaluating to determine if and where deficiencies may exist which cause our unaccounted for water to appear low.

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.