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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 Rankin | Title: | WTP Superintendent |
| Phone: | 704-282-4668 | Cell/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 % |
Programs
Pressure monitors placed on hydrants strategically throughout the system. Water Conservation
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 |
| Union | 100 % |
|
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 |
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 |
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 |

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.
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