WQ0042900_Return of Application_20211208

DocuSign Envelope ID:D8F5F591-1256-4597-98A4-929010BC1793
ROY COOPER
Govemor 1. t
ELIZABETH S.BISER `n
Secretary
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
December 08,2021
Bob Walker, Executive Director
Brunswick Regional Water& Sewer(H2GO)
P.O. Box 2230
Leland,North Carolina 28451
Subject: Return of Application
Compass Point Phase 22 A& B (WQ0042900)
Brunswick County
Dear Mr. Walker:
The Division of Water Resources is unable to accept the enclosed application package for
review for the following reason(s), in accordance with 15A NCAC 02T.0107(b & c):
1. The applicant has not assured downstream sewer capacity per 15A NCAC 02T.0304(b).
Given the approved flow allowance issued to Brunswick county on May 23, 2018,the
total number of permitted connections and bedrooms per connection, it appears that all
permitted flow from permit no. WQ0033044 has been previously allocated. Permit no.
WQ0033044 must be modified to allow more flow before application no. WQ0042900
can be considered.
2. The applicant has not provided an up-to-date connection& allocation usage accounting
report for each new or modified permit request per permit no. WQ0033044 Condition I.2.
It was found in the project narrative that the current flow allocation chart on page no. 2
and the number of connections vs. permitted units by phase chart on page no. 4 are out of
date. Current flow and connection data as of July 2021 or more recent must be provided.
Please note that the item(s) listed above must be included and/or completed prior to
resubmitting the permit application package for approval. Your application is being returned
as incomplete in accordance with 15A NCAC 02T.0107(b). The success of the sewer
extension approval process depends upon the receipt of complete and accurate applications.
Please make the appropriate corrections and resubmit the application, and the review
process will then begin upon receipt of the completed and/or corrected application.
Please be advised that construction and/or operation of wastewater collection system
extension without a valid permit is a violation of North Carolina General Statute 143-215.1
and may subject the Applicant to appropriate enforcement actions in accordance with North
Carolina General Statute 143-215.6. Civil penalties of up to $25,000 per day per violation
may be assessed for failure to secure a permit required by North Carolina General Statute
143-215.1.
ODENorth Carolina Department of Environmental Quality I Division of Water Resources
Q 512 North Salisbury Street 11617 Mail Service Center I Raleigh North Carolina 27699-1617
NORTH CPROI NA
Geprbwl N EmYaiwaYor\ 919.707.9000

DocuSign Envelope ID:D8F5F591-1256-4597-98A4-929010BC1793
If you have any questions,please contact Charlie Miller at(919)707-3627 or by email at
charlie.mi l ler(a,ncdenr.gov.
Sincerely,
— Docu3igned byy:A`
hti ,YW
•—C464531431644FE
for S. Daniel Smith
Director, Division of Water Resources
by Michael Montebello
Municipal Permitting Unit, Division of Water Resources, DEQ
CC: Michael House, PE,Cape Fear Engineering
(Michael.house@cap efearengineering.com)
Wilmington Regional Office, Water Quality Regional Operations
Municipal Permitting Unit(electronic copy)
Page 2 of 2

Project Narrative
For
Sewer Permitting
Subject:
COMPASS POINTE
Addition of Phase 22A & 22B
Brunswick County, North Carolina
Prepared for: rE O c r v
Renaissance Lifestyle LLC
PO Box 4548 BY:
Wilmington,NC 28406
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Prepared by:
Cape Fear Engineering, Inc.
151 Poole Road, Suite 100
Belville,NC 28451
[phone]
NC License C-1621

SEWER DESIGN NARRATIVE
GENERAL:
Compass Pointe is located in Brunswick County, North Carolina. The project site is just
north of Highway 74-76 and approximately one mile west from the intersection of
Highway 74-76 and Enterprise Drive.
The proposed Phases 22A and 22B will include the development of 96 multi-family units
and 86 single family lots. Wastewater flows from the proposed Phase 22B will be
conveyed to Pump Station #3 through a new low pressure sewer system that will connect
to the existing 6" forcemain along Safflower Way. Wastewater flows from lots 1-34 &
37-66 within the proposed Phase 22A will be conveyed through a new low pressure
sewer system that will connect to the existing 3" forcemain along Compass Pointe West
Wynd NE within Phase 19. Wastewater flows from lots 35-36 & 67-80 within the
proposed Phase 22A will be conveyed through a new low pressure sewer system that will
also connect to the existing 3" forcemain along Compass Pointe West Wynd NE within
Phase 19. The latter connection will be further downstream and will tie in via directional
drill.
From the existing low pressure sewer system, wastewater flows will discharge to the
previously permitted Pump Station #1 (WQ0033044). Ultimately wastewater flows will
discharge to the Northeast Brunswick WWTF(NC0086819).
Pump Station #1 was recently modified to increase flow allocation up to 282,690 GPD
(WQ00330044 dated 5/8/19). The below chart summarizes current flow allocation within
Compass Pointe as of September 1 , 2019.
1,277 Existing Single-Family Units(@ 116 GPD) 148,132 GPD
Existing Amenity Site 1,440 GPD
Existing Temporary Golf Clubhouse 1,200 GPD
Existing Golf Cart Barn 210 GPD
Existing Golf Maintenance 210 GPD
Proposed Senior Apartments 12,630 GPD
Future Development(approx. 566 REOs) 118,868 GPD
TOTAL 282,690 GPD
The proposed low pressure sewer system for Phases 22A & 22B will consist of
approximately 1,383 LF of 6-inch forcemain, 240 LF of 4-inch forcemain, 4,086 LF of 3-
inch forcemain, 5,222 LF of 2-inch forcemain,and 863 LF of 1.5-inch forcemain.

WASTEWATER PROJECTION:
For this phase of the sanitary sewer, the anticipated flow will be 38,220 GPD. This flow
has been calculated using the proposed 182 units in this section with an average daily
flow of 210 GPD.
SYSTEM DESIGN:
Pump Stations:
Pump Station #3 has been designed to handle flows from the Phase 22B and future
Compass Pointe North development. Pump Station#3 and discharge forcemain have been
designed in accordance with"NCDENR Minimum Design Criteria for Pump Stations and
Forcemains".
Low Pressure System:
The low pressure sewer system has been designed such that at build-out a scour velocity
of 2 fps is achieved in all forcemain pipes and the total dynamic head in each zone does
not exceed maximum head requirements of the individual grinder pumps.
Additionally, the system has been designed such that all previously permitted low
pressure units are not adversely affected by the proposed additional units and that there is
sufficient capacity for future areas of planned development.
TREATMENT FACILITY:
38,220 GPD of flow is being requested from the Northeast Brunswick Regional WWTP.
OPERATION AND MAINTENANCE:
Brunswick Regional Water and Sewer(H2G0) will be responsible for the operation and
maintenance of the sanitary sewer system.

Compass Pointe—No. of Connections vs. Permitted Units By Phase
As of September 1, 2020
Phase _ Active Connections Permitted Connections
Phase 1 A& 1 B (WQ0033044) 176 222
Phase l A Sec 2B (WQ0033044) 12 12
Phase 2 Sec 2A& 2B (WQ0033044) 168 187
Phase 2 Sec l C (WQ0036750) 12 15
Phase 4 Sec 1 (WQ00333044) 30 40
Phase 4 Sec 2 & 3 (WQ0033044) 42 57
Phase 4 Sec 4(WQ0036749) 33 44
Phase 4 Sec 5 (WQ0033044) 39 46
Phase 10& 11 (WQ0034461) 175 266
Phase 10 Sec 4(WQ0037083) 6 13
Phase 11 Sec 3 (WQ0037084) 51 87
Phase 11 Sec 1D(WQ0037607) 10 10
Phase 12 (WQ0037606) 48 97
Phase 13 (WQ0038004) 5 46
Phase 15 (WQ0038900) 20 45
Phase 16(WQ0038212) 38 51
Phase 17 Sec 1 (WQ0038095) 12 34
Phase 17 Sec 2-5 (WQ0038268) 69 j 126
Phase 18 (WQ0039761) 19 ' 103
Phase 14 (WQ0040299) 0 32
Phase 19(WQ0040386) 1 0 60
Phase 20 (WQ0041088) , 0 249
Phase 21 (WQ0041057) 0 22
Phase 22A&22B (Permit Pending) 0 182
TOTAL 965 2046

Appendix A
Summary of Design Assumptions
The proposed low pressure sewer system has been designed to use Zoeller Shark 810
grinder pumps and Zoeller 815 series grinder pumps where heads are greater than 150
feet; however, all design calculations were performed using E-one's Design Assistant
software. E-one software was used because Zoeller does not have a comparable
comprehensive design software package.
The fundamental difference between an E-one low pressure system and a Zoeller low
pressure sewer system is the type of pump used. The Zoeller pump selected for the
proposed low pressure sewer system is very similar to the E-one modeling software. Both
the Zoeller and the E-one pumps are progressing cavity pumps that have very similar
performance curves. (See Appendix B and C for E-one and Zoeller Performance
Curves.)
It was assumed that since the fundamental difference between the Zoeller and E-one low
pressure sewer systems is the type of pump used and since both systems employ pumps
with similar pump performance curves, the E-one modeling software would give an
adequate representation of the proposed low pressure system's performance.
4