20210089 Ver 1_ePCN Application_20210510

DWR
Division of Water Resources
Initial Review
Pre -Construction Notification (PCN) Form
April 4, 2021 Ver 4
Has this project met the requirements for acceptance in to the review process?*
6 Yes
✓ No
Is this project a public transportation project?*
CYes r No
Change only 1 needed.
BIMS # Assigned* Version#*
20210089 1
Is a payment required for this project?*
✓ No payment required
✓ Fee received
6 Fee needed - send electronic notification
Reviewing Office *
Raleigh Regional Office - [phone]
Information for Initial Review
What amout is owed?*
6 $240.00
r $570.00
Select Project Reviewer*
Stephanie Goss:eads\szgoss
la. Name of project:
Lake Michie Dam and Raw Water Pump Station Improvements
la. Who is the Primary Contact?*
Keven Arrance
lb. Primary Contact Email:* lc. Primary Contact Phone:*
[e-mail] [phone]
Date Submitted
5/10/2021
Nearest Body of Water
Lake Michie and Flat River
Basin
Neuse
Water Classification
WS-III; NSW, CA (lake); WS-IV; NSW, CA (river)
Site Coordinates
Latitude: Longitude:
36.14950 -78.82834
LA. Processing Information
County (or Counties) where the project is located:
Durham
Is this a NCDMS Project
✓ Yes G No
Is this project a public transportation project?*
✓ Yes r: No
Pre -Filing Meeting Information
Is this a courtesy copy notification?*
✓ Yes f• No

ID#
20210089
Version
1
Pre -fling Meeting or Request Date
1/13/2021
Attach documentation of Pre -Filing Meeting Request here:
Click the upload button or drag and drop files here to attach document
DWR Pre -Filing Meeting Request Form.pdf
Fie type mast be FCF
la. Type(s) of approval sought from the Corps:
f7 Section 404 Permit (wetlands, streams and waters, Clean Water Act)
I— Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
Has this PCN previously been submitted?*
✓ Yes
6 No
1b. What type(s) of permit(s) do you wish to seek authorization?
I7 Nationwide Permit (NWP)
I- Regional General Permit (RGP)
I— Standard (IP)
lc. Has the NWP or GP number been verified by the Corps?
✓ Yes(-No
Nationwide Permit (NWP) Number: 03 - Maintenance
NWP Numbers (for multiple NWPS):
Id. Type(s) of approval sought from the DWR:
17 401 Water Quality Certification - Regular
I— Non-404 Jurisdictional General Permit
I— Individual 401 Water Quality Certification
le. Is this notification solely for the record because written approval is not required?
For the record only for DWR 401 Certification:
For the record only for Corps Permit:
If. Is this an after -the -fact permit application?*
✓ Yes 0' No
55.5KB
I— 401 Water Quality Certification - Express
17 Riparian Buffer Authorization
lg. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
✓ Yes ( No
lg. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
✓ Yes rNo
Acceptance Letter Attachment
lh. Is the project located in any of NC's twenty coastal counties?
✓ Yes r: No
1j. Is the project located in a designated trout watershed?
✓ Yes r No
✓ Yes 6 No
✓ Yes 6 No
B. Applicant Information
Id. Who is applying for the permit?
I7 Owner r Applicant (other than owner)
le. Is there an Agent/Consultant for this project?*
6 Yes r No
2. Owner Information
2a. Name(s) on recorded deed:
City of Durham
2b. Deed book and page no.:

2c. Contact Person:
Donald Greeley
2d.Address
Street Address
1600 Mist Lake Drive
Address Line 2
Oty
Durham
Postal / Zip Code
27704
2e. Telephone Number:
[phone]
2g. Email Address:*
[e-mail]
4. Agent/Consultant (if applicable)
4a. Name:
Keven Arrance
4b. Business Name:
Hazen and Sawyer
State / Province / Region
NC
Country
USA
2f. Fax Number:
4c.Address
Street Address
4011 WestChase Blvd, Suite 500
Address Line 2
atY State / Bovine / Fegion
Raleigh NC
Postal / Zip Code Country
27607 USA
4d. Telephone Number: 4e. Fax Number:
[phone]
4f. Email Address:*
[e-mail]
Agent Authorization Letter*
404_401_Agent Authorization DG signed.pdf
161.47KB
C. Project Information and Prior Project History
1. Project Information
1b. Subdivision name:
(it appropriate)
lc. Nearest municipality/ town:
Durham
C^U
2. Project Identification
2a. Property Identification Number:
0857-03-03-6386, 0856-01-09-0618, 0847-
03-68-8160
2c. Project Address
Street Address
7019 Lake Michie Dam Road
Address Line 2
atY
Bahama
Fbstal / Zip Code
27503
3. Surface Waters
3a. Name of the nearest body of water to proposed project:*
Lake Michie and Flat River
2b. Property size:
72, 30, 580
State / Bovine / Region
NC
Country
USA
3b. Water Resources Classification of nearest receiving water:*

WS-III; NSW, CA (lake); WS-IV; NSW, CA (river)
3c. What river basin(s) is your project located in?*
Neuse
3d. Please provide the 12-digit HUC in which the project is located.
030202010104
4. Project Description and History
4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application:*
The site consists of an active raw water intake and pump station associated with Lake Michie. The facility is one of the City of Durham's raw water sources. A dirt access road to the
intake, pump station, dam, and caretaker's residence is onsite. Within the project's limits of disturbance, many areas are maintained as part of the raw water intake facility; additionally,
there are existing utility easements, a restricted lake access, and areas maintained as part of a Durham Police training facility. The lands surrounding the project footprint consist of
Lake Michie, undeveloped forested areas, the Durham Police training facility, and the caretaker's residence. Topography landward of the project footprint is generally steep, sloping up
from the lake edge.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?*
r Yes G No r Unknown
4d. Attach an 8 1/2 X 11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR)
Lake Michie PS - topo.pdf 650.44KB
4e. Attach an 8 1/2 X 11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR)
Soil Survey map8_Lake Michie.pdf 470.25KB
4f. List the total estimated acreage of all existing wetlands on the property:
0
4g. List the total estimated linear feet of all existing streams on the property:
5,500
4h. Explain the purpose of the proposed project:*
Lake Michie serves as one of the City of Durham's (City's) two primary water sources with a safe yield of 10.5-million gallons per day (mgd). Lake water is conveyed through an existing
pump station built in the 1920's to the City's Brown and Williams Water Treatment Plants (WTPs) for treatment and subsequent distribution. The City will continue to rely heavily on Lake
Michie as one of its raw water sources for the foreseeable future.
Previous condition assessment efforts at the Lake Michie Dam and Raw Water Pump Station (PS) identified several noteworthy deficiencies with many facility components approaching
or beyond the end of their useful service life. Therefore, the City is moving forward with a construction project to address multiple facility needs at this location to ensure sustainable and
reliable source water delivery to the WTPs. The proposed improvements to the Lake Michie Dam and Raw Water Pump Station impact all pertinent facility systems. The primary
improvement efforts planned at this facility consist of improvements to the existing raw water intake, construction of new groundwater well and conventional septic system, and numerous
repair, rehabilitation, and improvement items in and on the PS.
4i. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
Intake improvements include installation of new galvanized steel bar screens and selective water column withdrawal capabilities. Withdrawal will be provided by new 54-inch pipe risers
and butterfly valves located at optimal lake levels along the risers to ensure withdrawal capabilities and to optimize water quality. These risers will be located in two of the existing intake
bays. A new low-level outlet will be installed in the third intake bay. The low-level outlet will have a 66-inch sluice gate and will facilitate lake draining and a 48-inch sluice gate to
accommodate emergency low-level withdrawals for water supply purposes. Sluice gates and valves will allow PS operators to control flows and withdrawals through the low-level outlet.
Maintenance dredging of accumulated sediments adjacent to the intake is needed to conduct the improvements and to facilitate continued operations of the intake. The dredging limits
will be determined by the contractor based on conditions existing at the time of construction and will be limited to the minimum dredging necessary. The contractor will be contractually
obligated to not exceed 200 feet in any direction from the intake structure with the dredging activities.
The project includes construction of a new groundwater well and a subsurface, conventional septic system to provide water and sewer service to the PS. A new 2-inch water line is
proposed from the well site, located in the front yard, and routed to the interior of the PS. A packaged pump station and 2-inch sewer line is proposed to convey wastewater from the PS
to the septic system, which is proposed to be located up the hill to the west side of the station. The packaged pump station will be installed inside the existing structure of the Lake
Michie Raw Water PS. The sewer line will be installed along the western limit of the area that is currently cleared, graded, and maintained in support of the Raw Water PS. All such
infrastructure is located on the downstream side of reservoir.
Repair, rehabilitation, and improvement items in and on the PS will address pumping, piping, electrical systems, architectural features, structural needs, control systems, and the HVAC
system. The work will occur inside the existing PS structure on the pumps, piping, some electrical components, some architectural components, some structural repairs, control systems,
and HVAC system. Exterior to the PS, electrical improvements include a new utility transformer to be installed by the electric utility provider and a new standby generator. Architectural
upgrades to the PS exterior will include addressing cosmetic concerns as well as removing hazardous building materials, including lead -based paint and asbestos. Structural repairs will
occur inside and outside of the PS building, as well. Exterior structural repairs will address deteriorating concrete surfaces required to support the proposed intake upgrades.
Construction of a coffer cell is anticipated to complete the intake modifications following dredging efforts. Lake access, necessary to complete the dredging and intake work, is proposed
to occur to the east of the spillway from the Durham Police Gun Range property. Lake access from this location has been utilized on previous dam rehabilitation projects. The access
area is presently maintained lawn abutted by undisturbed forest to the east and the dam to the west. An alternate lake access point that may be used, if needed or preferred, is via the
marina at the Lake Michie Recreation Area on Bahama Road, located northwest of the dam. No site alterations at the recreation area are necessary to accommodate the watercraft and
equipment that may be launched from the marina. Property access for all other improvements is anticipated via Lake Michie Dam Road.
The site layout includes the designation of a construction laydown area located on the west side of Lake Michie Dam Road and south of the dam. The laydown area will provide space
for the construction contractor's temporary office trailer and temporary storage of materials and equipment. The laydown area currently consists of an underground utility easement and
abutting young forest. The laydown area is situated in an upland area with no streams or riparian buffer zones.
The use of both marine and land construction equipment is anticipated to complete the proposed work at the site including, but not limited to, a sectional barge; clamshell dredge;
hydraulic dredge; crane; lull; front end loader, excavator, and/or backhoe; forklift; and dump truck. Blasting is not anticipated to be necessary for the proposed activities. However,
should subsurface conditions be encountered that necessitate blasting, the decision to perform blasting will be made by the contractor with approval by the City.
Tree removals are anticipated to occur in support of the proposed project. Tree removals will be limited to the laydown area and the septic field. No tree removals are proposed within or
abutting riparian buffer areas protected under the Neuse River Buffer Rules.
4j. Please upload project drawings for the proposed project.
31306-001-Civil.pdf 8.46MB
5. Jurisdictional Determinations
5a. Have the wetlands or streams been delineated on the property or proposed impact areas?*
6 Yes rNo
r Unknown

Comments:
5b. If the Corps made a jurisdictional determination, what type of determination was made? *
r Preliminary r Approved 6 Not Verified r Unknown r N/A
Corps AID Number:
5c. If 5a is yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company:
Other:
5d1. Jurisdictional determination upload
6. Future Project Plans
K. Arrance, L. Diebolt
Hazen and Sawyer
6a. Is this a phased project?*
CYes 0' No
Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity?
The City of Durham is designing and contracting the construction of improvements at the Little River Raw Water Pump Station and the Lake Michie Dam and Raw Water Pump Station
together under a single contract. For simplicity in the Section 404, Section 401, and buffer permitting, only the Lake Michie site is discussed in this PCN application.
D. Proposed Impacts Inventory
1. Impacts Summary
la. Where are the impacts associated with your project? (check all that apply):
r Wetlands r Streams -tributaries
J Open Waters r Pond Construction
4. Open Water Impacts
fJ Buffers
4a. Site #
4a1. Impact Reason
4b. Impact type
4c. Name of waterbody
4d. Activity type
4e. Waterbodytype
4f. Impact area
L1
Rehabilitate raw water
intake
P
Lake Michie
Dredging
Lake
0.12
4g. Total temporary open water Impacts:
0.00
4g. Total open water impacts:
0.12
4g. Total permanent open water impacts:
0.12
4h. Comments:
The impacts consist of replacement of components associated with the existing raw water intake and maintenance dredging of accumulated sediments
and debris in the lake adjacent to the intake structure. The impact area is stated as an anticipated maximum area; the actual dredging extents will be
determined by the contractor, not to exceed 200 feet in any direction from the existing intake.
6. Buffer Impacts (for DWR)
6a. Project is in which protect basin(s)?
Check all that apply.
▪ Neuse
✓ Catawba
r Goose Creek
r Other
✓ Tar -Pamlico
✓ Randleman
✓ Jordan Lake
6b. Impact Type
6c. Per or Temp
6d. Stream name
[. Buffer mitigation required?
6f. Zone 1 impact
6g. Zone 2 impact
B1 - exempt
T
Lake Michie
No
0
418
B2 - exempt
T
Lake Michie
No
19
492
6h. Total buffer impacts:
Zone 1
Zone 2
Total Temporary impacts:
19.00
910.00

Total Permanent impacts:
Zone 1 Zone 2
0.00 0.00
Total combined buffer impacts:
Zone 1 Zone 2
19.00 910.00
6i. Comments:
B1 impact consists of excavation to bury a new sewer line in an area that is currently maintained as part of the Raw Water Pump Station site. B2
impact consists of lake access via an existing access. No woody vegetation sill be removed from the buffer. As such, the buffer impact is exempt as
existing use.
Supporting Documentation
Lake Michie PS - WOTUS impacts.pdf
Lake Michie PS - buffer impacts.pdf
687.63KB
701.9KB
E. Impact Justification and Mitigation
1. Avoidance and Minimization
la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
Full avoidance of impacts to jurisdictional areas is only feasible with an alternative that does not fully meet the need for the project. Installation of the
new bar screens and selective water column withdrawal capabilities cannot be completed without in -water work. Dredging the accumulated sediment
and debris in front of the intake structure is necessary to allow the intake work to be completed and to facilitate reliability in the operation and capacity
of the intake in the future. The components of the project located in uplands have been sited in previously disturbed areas and as far away from the
edge of water as is feasible, given the site constraints, in an effort to minimize potential, unintended sediment inputs into the lake or river.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
In -water work will be performed in dry conditions, behind a coffer cell. Dredging will be limited to the minimum necessary to meet the purpose and need
of the dredging and will not exceed 200 feet in any direction from the intake structure. The exact limits and depth of dredging will be determined by the
construction contractor.
The remainder of the proposed activities will occur in upland areas landward of the protected riparian buffer. Vehicle maintenance and repairs shall be
performed away from jurisdictional areas in order to protect sensitive resources from effects resulting from spilled or leaked fluids. Erosion and
sediment control measures will be installed prior to land disturbance and will be maintained for the duration of land disturbing activities in order to
protect against unintended deposition of sediments into the lake. No fill material will be placed in jurisdictional areas.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State?
C Yes r No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
Mitigation is not required under the Clean Water Act or Neuse River Buffer Rules for the proposed impacts.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
1. Diffuse Flow Plan
la. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
r Yes C No
What type of SCM are you providing?
n Level Spreader
n Vegetated Conveyance (lower SFI T)
r Wetland Swale (higher SHWT)
r Other SCM that removes minimum 30% nitrogen
I7 Proposed project will not create concentrated stormwater flow through the buffer
Diffuse Flow Documentation
PCN Diffuse Flow Michie.pdf 44.97KB
2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
CYes rNo
2b. Does this project meet the requirements for low density projects as defined in 15A NCAC 02H .1003(2)?
r Yes r No
Comments:
G. Supplementary Information L)

1. Environmental Documentation
la. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?*
✓ Yes CNo
1b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State (North Carolina)
Environmental Policy Act (NEPA/SEPA)? *
C Yes rNo
Comments:*
The project is below the minimum criteria that trigger the preparation of a SEPA document. The project does not involve federal funds, federal lands,
or federal agency involvement other than authorization under Section 404 of the Clean Water Act.
2. Violations (DWR Requirement)
2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), or DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)?*
C Yes (• No
3. Cumulative Impacts (DWR Requirement)
3a. Will this project result in additional development, which could impact nearby downstream water quality?*
C Yes r No
3b. If you answered "no," provide a short narrative description.
The project vrill not increase the existing capacity of the raw water intake pump station. No new areas will be served by Durham post -construction.
Therefore, development that is not currently supported by the existing drinking water capacity of Durham will not be supported upon completion of the
proposed project.
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project?*
C Yes r No C N/A
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or habitat?*
( Yes C No
5b. Have you checked with the USFWS concerning Endangered Species Act impacts?*
C Yes ( No
5d. Is another Federal agency involved?*
C Yes
5e. Is this a DOT project located within Division's 1-8?
C Yes r No
r No C Unknown
5f. Will you cut any trees in order to conduct the work in waters of the U.S.?
C Yes r No
5g. Does this project involve bridge maintenance or removal?
C Yes r No
5h. Does this project involve the construction/installation of a wind turbine(s)?*
✓ Yes r No
5i. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.?
F.' Yes C No
If yes, please provide details to include type of percussive activity, purpose, duration, and specific location of this activity on the property.
Description of Blasting_LMPS.pdf 77.59KB
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?
The USFWS IPaC tool was accessed most recently on January 19, 2021. Two terrestrial plants are listed - Michaux's sumac and smooth coneflower.
Hazen biologists performed an assessment of the available habitat for the listed plants within the impact areas. Habitat was found to not be present
with suitable disturbance regime to support Michaux's sumac or smooth coneflower.
Three aquatic species are proposed for listing - Neuse River waterdog, Carolina madtom, and Atlantic pigtoe. The in -water work includes dredging of
accumulated sediments and debris within the lake. The proposed aquatic species inhabit waterbodies with flow (e.g., streams, creeks, rivers). No
impact to federally listed or proposed for listing species will result from the project.
Consultation Documentation Upload
IPaC_Lake Michie_20210119.pdf 357.05KB
6. Essential Fish Habitat (Corps Requirement)

6a. Will this project occur in or near an area designated as an Essential Fish Habitat?*
r Yes ( No
6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?*
NOAA EFH mapper was consulted.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation status?*
('Yes rNo
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?*
The proposed laydown area is located within the Bennehan-Cameron Historic District, which was determined eligible for listing in 1978. The district has
not been listed in the National Register. At present, no structures are present within, surrounding, or visible from the proposed laydown area.
Additionally, the laydown area is not visible from any structure located within the eligible district.
7c. Historic or Prehistoric Information Upload
HPOWEB_Lake Michie_20210129.pdf 312.67KB
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain?*
( Yes r No
8b. If yes, explain how project meets FEMA requirements:
The majority of the project is located upgradient of the 100-year flood zone. The portion of the project that will occur within the 100-year flood zone
consists of the in -water work to be done on the intake structure and associated dredging. No alteration of the land within the flood zone is proposed as
part of the project. No new structures or fill material is proposed to be placed, installed, or constructed in the flood zone.
8c. What source(s) did you use to make the floodplain determination?*
Map panels 3720085700K, 3720084700K, and 3720085600K, all effective 10/19/2019.
Miscellaneous
Comments
Miscellaneous attachments not previously requested.
Signature
*
I7 By checking the box and signing below, I certify that:
• The project proponent hereby certifies that all information contained herein is true, accurate, and complete to the best of my knowledge and belief; and
• The project proponent hereby requests that the certifying authority review and take action on this CWA 401 certification request within the applicable reasonable period of time.
• I have given true, accurate, and complete information on this form;
• I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
• I intend to electronically sign and submit the PCN form.
Full Name:
Keven Arrance
Signature
(�Gfas�c�
Date
5/10/2021

AGENT AUTHORIZATION LETTER
PROJECT LOCATION: The project is located at the northern terminus of Lake Michie Dam Road in
Durham. The project site is situated south and west of the Lake Michie dam and includes a portion of
the darn. The project site provides a work area for repairs and upgrades to the raw water intake
pump station, and various related site improvements.
STREET ADDRESS: 7019 Lake Michie Dam Road, Bahama, NC 27503
Please print:
Applicant: City of Durham, Water Management
Applicant Contact Person: Donald Greeley, PE, PLS
The undersigned applicant of the proposed project do hereby authorize
Keven Arrance of Hazen and Sawyer
(Consultant / Agent) (Name of Consulting Firm)
to act on my behalf and take all actions necessary for the processing, issuance and acceptance of
the attached permit or certification and any and all standard and special conditions attached.
Applicant's Mailing Address (if different than property above):
101 City Hall Plaza, Durham, NC 27701
Telephone: [phone]
We hereby certify the above information submitted in this application is true and accurate to the
best of our knowledge.
Sis
(Applicant) / (Date)

DWR Pre -Filing Meeting Request Form
ID#*
Regional Office *
Reviewer List*
20210089
Version*
1
Raleigh Regional Office - [phone]
Stephanie Goss
Pre -Filing Meeting Request submitted 1/13/2021
Contact Name * Keven Arrance
Contact Email Address* [e-mail]
Project Name * Lake Michie and Little River Raw Water Pump Station Improvements
Project Owner* City of Durham
Project County* Durham
Owner Address: Street Address
Attn: Lori Montgomery
Address Line 2
1600 Mist Lake Drive
City State / Rovince / Region
Durham NC
Fbstal / Zip Code Country
27704 USA
Is this a transportation project?* C Yes ( No
Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - I— 401 Water Quality Certification -
Reg ula r Express
I— Individual Permit I— Modification
I— Shoreline Stabilization
Does this project have an existing project ID#?*
( Yes r No
Please list all existing project ID's associated with this projects.*
RRO #20-238
Do you know the name of the staff member you would like to request a meeting with?
Please give a brief project description below.*

The project consists of improvements to the City of Durham's raw
water pumping stations at Lake Michie and Little River Reservoir. See
below for details regarding the proposed work at each pump station.
Little River PS
The project consists of upgrades to the existing raw water pumping
station and raw water intake, as well as construction of a newwater
service line along the entrance road. The majority of the upgrade
work will be performed within the existing infrastructure. Components
of the existing gates on the raw water intake, accessible from the
operating deck, will be replaced from the exterior with minor
adjustments to the drain gate being performed by divers in the lake.
Furthermore, spillway roller gate and stop log monorail components,
will be replaced from the exterior. Impacts regulated under Section
401 will be restricted to replacement of components of the existing
gates by divers.
Lake Michie PS
The project consists of upgrades to the existing raw water pumping
station and raw water intake, installation of a new water service line to
the pump station, and installation of a septic system and associated
piping and pumping system to connect the pump station's facilities to
the septic field. The majority of the upgrades will be fully contained
and constructed within the existing infrastructure.
Work on the intake will necessitate maintenance dredging in the lake
to remove accumulated sediment surrounding the intake. Sediment
removal is not expected to extend beyond 200 feet from the intake
structure and will be the minimum necessary to allow the intake work
to be completed. Following the dredging, a coffer cell will be installed
around the intake in order to provide and maintain a dry work area.
The intake upgrades consist of providing new bar screens, new multi-
level withdrawal capabilities, a low-level intake for emergency use,
and a low-level outlet/drain for the lake while maintaining regulated,
minimum release volumes. The intake upgrades will increase the
capacity of the intake, in preparation for possible future increased
demands, but the new pumps installed in this project will not have the
capacity to support the increased intake capacity at this time.
Please give a couple of dates you are available for a meeting.
1/19/2021
1/20/2021
1/21/2021
1/25/2021
1/26/2021
Please attach the documentation you would like to have the meeting about.
60% Design - Drawings EXCERPT.pdf 1.25MB
pdf only
By digitally signing below, I certify that I have read and understood that per the Federal Clean Water Act Section
401 Certification Rule the following statements:
• This form completes the requirement of the Pre -Filing Meeting Request in the Clean Water Act Section 401 Certification
Rule.
• I understand by signing this form that I cannot submit my application until 30 calendar days after this pre -filing
meeting request.

• !also understand that DWR is not required to respond or grant the meeting request.
Your project's thirty -day clock started upon receipt of this application. You will receive notification regarding meeting location
and time if a meeting is necessary. You will receive notification when the thirty -day clock has expired, and you can submit an
application.
Signature
Submittal Date 1/13/2021

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Lake Michie Dam and
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DEPARTMENT OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
CITY OF
DURHAM
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION IMPROVEMENTS
90% DESIGN REVIEW - DO NOT USE FOR CONSTRUCTION
HAZEN NO.: 31306-001
MARCH 2O21
LOCATION MAP
NOT TO SCALE
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO. : C-0381
LAKE MICHIE RAW WATER PUMP STATION
LAKE MICHIE DAM RD
BAHAMA, NC 27503
LITTLE RIVER RAW WATER PUMP STATION
6225 SNOW HILL DR
DURHAM, NC 27712

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PLOT DATE: 4/8/2021 4:19 PM
CONSTRUCTION
SEQUENCE:
SEEDING
SCHEDULE
GENERAL:
EROSION
CONTROL:
1. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR SITE SAFETY ASSOCIATED WITH 1. CONTRACTOR TO POST EROSION CONTROL PERMIT ON JOB SITE AS REQUIRED. 1. CONTRACTOR SHALL SIGN AND IMPLEMENT THE REQUIREMENTS OF THE STATE
APPROVED EROSION CONTROL PLAN AND THE NORTH CAROLINA NATIONAL
APPLICATION RATES IN POUNDS/ACRE
P PERMANENT SEEDING
THE WORK UNDER THIS PROJECT AND FOR COMPLIANCE WITH ALL FEDERAL,
STATE AND LOCAL HEALTH AND SAFETY LAWS, CODES, REGULATIONS, AND 2. ALL EROSION CONTROL MEASURES SHALL BE IN PLACE BEFORE ANY LAND POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)GENERAL PERMIT FOR
SEED***
PLANTING
STRAW
RIPARIAN MIX (15 LB/AC PURE LIVE SEED****)
ORDINANCES INCLUDING, BUT NOT LIMITED TO, THOSE CURRENTLY MANDATED CLEARING OR DISTURBANCE ACTIVITIES MAY BEGIN. STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY. THE
MIXTURE
SEASON
LIME*
FERTILIZER*
MULCH*
COMMENTS
25% DEERTONGUE (Dichanthelium clandestinum)
30% LITTLE BLUESTEM (Schicaryium scoparium)
BY THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA). CONTRACTOR SHALL NOTIFY THE STATE LAND QUALITY SECTION AT [phone]
3. A RAIN GAUGE SHALL BE MAINTAINED IN GOOD WORKING ORDER ON THE TO SCHEDULE A PRE -CONSTRUCTION MEETING. ADDITIONALLY, THE CONTRACTOR
2. CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR THE DESIGN, INSTALLATION, SITE UNLESS ANOTHER RAIN -MONITORING DEVICE HAS BEEN APPROVED BY SHALL NOTIFY THE STATE LAND QUALITY SECTION, AT [phone] AT LEAST 48
P
AUG 15 - MAY 1
4000
1000
4000
10% INDIAN WOODOATS (Chasmanthium latifolium
25% VIRGINIA WILDRYE (Elymus virginicus)
10% SOFT RUSH (Juncus effusus)
AND MAINTENANCE OF ALL EXCAVATION SUPPORT ON THE PROJECT. ALL THE NC DIVISION OF WATER QUALITY. A WRITTEN RECORD OF THE DAILY HOURS PRIOR TO BEGINNING CONSTRUCTION ACTIVITIES. EROSION AND SEDIMENT
EXCAVATION SUPPORT SHALL BE DESIGNED BY A PROFESSIONAL ENGINEER RAINFALL AMOUNTS SHALL BE RETAINED AND ALL RECORDS SHALL BE MADE CONTROL (E&SC) PERMIT AND A CERTIFICATE OF COVERAGE (COC) MUST BE
REGISTERED IN THE STATE OF NORTH CAROLINA. ALL EXCAVATION SUPPORT AVAILABLE TO THE DIVISION OF WATER QUALITY. REFER TO THE NC NPDES
TS
MAY 1 AUG 15
4000
750
4000
OVERSEED WITH TYPE P
SEED MIXTURE DURING
LAWN MIX (150 LB/AC)
DESIGN DOCUMENTS SHALL BE PRESENTED TO THE ENGINEER FOR REVIEW GENERAL PERMIT NCG010000, SECTION II.B.(3)(B), FOR ADDITIONAL OBTAINED BEFORE AND LAND DISTURBING ACTIVITIES OCCUR.
NEXT PLANTING SEASON
TALL FESCUE
BEFORE IMPLEMENTATION. CONTRACTOR SHALL USE ADEQUATE SHORING INFORMATION. 2. INSTALL ALL PERIMETER TEMPORARY SEDIMENT AND EROSION CONTROL MEASURES
METHODS TO ENSURE:
TW
AUG 15 MAY 1
4000
750
4000
OVERSEED WITH TYPE P
TS TEMPORARY SUMMER SEEDING
4. THE CONTRACTOR SHALL FURNISH AND INSTALL ALL NECESSARY EROSION IN LOCATIONS AS SHOWN ON THE CONTRACT DRAWINGS. THIS INCLUDES, BUT IS
A. COMPLIANCE WITH OSHA REGULATIONS. CONTROL MEASURES WHETHER OR NOT SHOWN ON THE PLANS TO PROTECT NOT LIMITED TO, SILT FENCE, TREE PROTECTION FENCE, AND GRAVEL
ADJACENT CREEKS, RIVERS, ROADWAYS, ETC. FROM SILTATION AND EROSION. CONSTRUCTION ENTRANCE. NO CONSTRUCTION OR LAND DISTURBANCE ACTIVITIES
SEED MIXTURE DURING
NEXT PLANTING SEASON
BROWNTOP MILLET (Urochloa ramosa)
GERMAN MILLET (Setaria italica)
B. PROTECTION OF EXISTING PAVEMENT AND ROAD SHOULDERS, MAY BEGIN UNTIL ALL TEMPORARY SEDIMENT AND EROSION CONTROL MEASURES TW - TEMPORARY WINTER, SPRING, FALL SEEDING
STRUCTURES AND UTILITIES. 5. ALL EROSION CONTROL MEASURES SHALL BE INSPECTED WEEKLY AND WITHIN HAVE BEEN INSTALLED. CLEAR ONLY THE AREA REQUIRED FOR INSTALLATION OF RYE GRAIN (Secale cereale)
SEEDBED PREPARATION NOTES: WHEAT (Triticum aestivum)
24 HOURS OF ANY RAINFALL EVENT THAT PRODUCES 1 INCH OR MORE OF EROSION CONTROL MEASURES.
C. CONSTRUCTION ACTIVITIES ARE CONFINED TO RIGHTS -OF -WAY OR RAIN. REPAIR AND/OR REPLACE AS NECESSARY. SEE STANDARD DETAILS ON 1. SCARIFY 2" DEPTH OF SUBGRADE PRIOR TO PLACING TOPSOIL.
EASEMENTS AS INDICATED CONTRACT SHEET DC3 FOR SPECIFIC MAINTENANCE REQUIREMENTS FOR EACH 3. ONCE ALL TEMPORARY PERIMETER EROSION CONTROL MEASURES HAVE BEEN 2. TOPSOIL SHALL BE SPREAD AT 4" INCH CONSOLIDATED DEPTH
EROSION AND SEDIMENT CONTROL MEASURE UTILIZED ON THIS PROJECT. INSTALLED, THE SITE SHALL BE CLEARED AND GRUBBED, AS REQUIRED, WITHIN 3. APPLY SEED UNIFORMLY WITH A CYCLONE SEEDER, DROP -TYPE SPREADER, OF HYDROSEEDER ON A FIRM,
3. LIMITS OF DISTURBANCE (LOD) SHALL BE AS INDICATED ON THE CONTRACT THE LIMITS OF DISTURBANCE (LOD) AS SHOWN ON THE CONTRACT DRAWINGS. ANY FRIABLE SEEDBED. IN FINE SOILS, SEEDS SHOULD BE DRILLED 1/4 - 1/2 INCH. IN COARSE, SANDY SOILS,
DRAWINGS. ANY CHANGES TO THE LOD BY THE CONTRACTOR SHALL REQUIRE 6. EROSION CONTROL MEASURES SHALL BE CLEANED OF ACCUMULATED ADJUSTMENTS TO THE LOD SHALL REQUIRE PRIOR APPROVAL FROM THE ENGINEER SEEDS SHALL BE PLANTED NO DEEPER THAN 3/4 INCH. COVER BROADCAST SEED BY LIGHTLY RAKING OR
PRIOR APPROVAL FROM THE ENGINEER AND DEMLR LAND QUALITY SECTION. SEDIMENT WHEN VOLUME OF MEASURE IS HALF FULL. SEDIMENT SHALL BE AND OWNER. CHAIN DRAGGING; THEN FIRM SURFACE WITH A ROLLER OR CULTIPACKER TO PROVIDE GOOD SEED
REMOVED FROM BEHIND SILT FENCING WHEN IT BECOMES APPROXIMATELY CONTACT.
4. CONTRACTOR SHALL REPAIR AT HIS OWN EXPENSE, ANY DAMAGE CAUSED BY 0.5 FEET DEEP AT THE FENCE. THE SEDIMENT FENCE SHALL BE REPAIRED AS 4. ALL DEBRIS FROM TREE CLEARING SHALL BE REMOVED FROM SITE. NO BURNING OF
CONSTRUCTION -RELATED ACTIVITIES TO EXISTING UTILITY SERVICE LINES. NECESSARY TO MAINTAIN THE BARRIER. REMOVED SEDIMENT SHALL BE * LIME SHALL BE APPLIED AT A MINIMUM OF 2 TONS PER ACRE WITH 3 TONS PER ACRE IN CLAY SOILS.
DISPOSED OF IN SUCH A MANNER AS TO PREVENT FURTHER SEDIMENT DEBRIS WILL BE ALLOWED. APPLICATION RATES AND/OR CHEMICAL ANALYSIS SHALL BE CONFIRMED OR ESTABLISHED BY SOIL TEST.
5. IN THE EVENT OF DAMAGE TO EXISTING UTILITIES, CONTRACTOR SHALL STOP TRANSPORT. IF NO SUITABLE ON -SITE LOCATIONS ARE AVAILABLE, ALL TACK MULCH BY APPLYING AT 0.10 GAL/YD2
WORK IMMEDIATELY, TAKE NECESSARY PRECAUTIONS TO PREVENT INJURY OR REMOVED SEDIMENT WILL BE LEGALLY DISPOSED OF OFF -SITE AT NO 5. ALL EXCESS SOIL RESULTING FROM ANY EARTHWORK OPERATIONS NECESSARY
FURTHER DAMAGE, AND NOTIFY PROPER AUTHORITIES. CONTRACTOR SHALL BE ADDITIONAL COST TO THE OWNER. SHALL BE REMOVED FROM SITE BY CONTRACTOR. ANY SOILS TAKEN OFFSITE ** FERTILIZER SHALL BE 10-10-10 ANALYSIS.
RESPONSIBLE FOR RESTORING/REPAIRING ALL EXISTING STRUCTURES, BECOMES THE CONTRACTOR'S RESPONSIBILITY, AND SHALL COMPLY WITH ALL
CONDUITS, OR OTHER UTILITIES DAMAGED BY CONTRACTOR'S OPERATIONS AT 7. ALL EXCESS SOIL RESULTING FROM EARTHWORK AND DREDGING OPERATIONS REQUIRED STATE AND LOCAL REGULATIONS AND PERMITS. *** SEED MIXTURES TO BE USED ON THE PROJECT SHALL BE AS FOLLOWS (ACCEPTABLE SUBSTITUTES PER SECTION
NO COST TO OWNER. SHALL BE REMOVED FROM SITE BY CONTRACTOR. ALL TEMPORARY SOIL 6.24 OF THE NC EROSION AND SEDIMENTATION CONTROL PLANNING AND DESIGN MANUAL MUST BE APPROVED
STOCKPILE AREAS USED FOR BACKFILL AND OTHER ACTIVITIES SHALL BE 6. TEMPORARY SEEDING MEASURES SHALL BE EMPLOYED AS SOON AS PRACTICABLE BY ENGINEER)
6. REMOVAL AND REPLACEMENT OR REPAIR OF EXISTING UTILITY SERVICES SHALL WITHIN THE LOD AS SHOWN ON THE DRAWINGS, AND LOCATED, AT A ON DISTURBED AREAS BUT IN ANY EVENT WITHIN FOURTEEN (14) DAYS. DISTURBED **** ACTUAL QUANTITY OF BULK SEED IS LARGER, AND IS CALCULATED AS THE REQUIRED PURE LIVE SEED
BE COORDINATED WITH APPROPRIATE UTILITY COMPANY AT NO ADDITIONAL MINIMUM, 50 FEET FROM ANY SURFACE WATERS. STOCKPILE SIDE SLOPES SLOPES STEEPER THAN 3:1 SHALL BE TEMPORARILY SEEDED WITHIN SEVEN (7) DIVIDED BY BOTH THE GERMINATION AND PURITY. ENSURE SEEDS ARE PROPERLY STRATIFIED, IF
COST TO THE OWNER. SHALL BE NO STEEPER THAN 3:1 AND TOP OF STOCKPILE SHALL BE SLOPED AT DAYS UNLESS SLOPE LENGTH IS TEN (10) FEET OR LESS AND NOT STEEPER THAN APPLICABLE, IN ORDER TO ACHIEVE GERMINATION NOTED ON SEED TAG.
A MINIMUM OF 5% TO PROMOTE POSITIVE DRAINAGE. ALL ONSITE
7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE REMOVAL AND TEMPORARY SOIL STOCKPILES SHALL BE SEEDED WITH TEMPORARY AND/OR 2:1. DISTURBED SLOPES 3:1 OR FLATTER SHALL BE TEMPORARILY SEEDED WITHIN
REPLACEMENT TO ORIGINAL OR BETTER CONDITION OF ALL EXISTING PERMANENT SEEDING MEASURES FOR THE DURATION OF CONSTRUCTION FOURTEEN (14) DAYS UNLESS SLOPE LENGTH IS GREATER THAN 50 FEET. DURHAM PLANNING GENERAL CONDITIONS OF APPROVAL -LANDSCAPING NOTES:
PAVEMENTS, FENCES, AND MISCELLANEOUS ITEMS WHERE DAMAGED BY CONTRACTOR STAGING SOIL OR
ACTIVITIES. ALL AND LAYDOWN AREAS,
CONSTRUCTION ACTIVITIES OR REQUIRED TO COMPLETE THE CONSTRUCTION. WASTE STOCKPILE AREAS SHALL HAVE PERIMETER SILT FENCE. LOCATED NO 7. WHEN THE PROJECT IS COMPLETE, THE PERMITTEE SHALL CONTACT DEMLR TO 1. LANDSCAPE MULCH: PINE STRAW SHALL NOT BE USED AS MULCH OR GROUNDCOVER WITHIN TEN FEET OF ANY STRUCTURES CONSISTING OF
CLOSER THAN 6 FEET FROM TOE OF SLOPE TO ALLOW FOR ACCESS AND CLOSE OUT THE E&SC PLAN. AFTER DEMLR INFORMS THE PERMITTEE OF THE EXTERIOR COMBUSTIBLE CONSTRUCTION AS SPECIFIED BY DURHAM CITY CODE SECTION 46-87.
8. ALL HOLES, TRENCHES, AND OTHER HAZARDOUS AREAS SHALL BE ADEQUATELY MAINTENANCE. ANY SOILS TAKEN OFF SITE BECOMES THE CONTRACTORS PROJECT CLOSE OUT, VIA INSPECTION REPORT, THE PERMITTEE SHALL VISIT
PROTECTED BY BARRICADES, LIGHTS OR OTHER PROTECTIVE DEVICES. RESPONSIBILITY AND SHALL COMPLY WITH ALL REQUIRED STATE AND LOCAL DEQ.NC.GOV/NCGO1 TO SUBMIT AN ELECTRONIC NOTICE OF TERMINATION (E-NOT). 2. TREE PROTECTION FENCING MUST BE IN PLACE PRIOR TO ANY DEMOLITION, LAND DISTURBANCE, OR ISSUANCE OF A GRADING PERMIT AND
REGULATIONS AND PERMITS. A $100 ANNUAL GENERAL PERMIT FEE WILL BE CHARGED UNTIL THE E-NOT HAS SHALL INCLUDE WARNING SIGNS POSTED IN BOTH ENGLISH AND SPANISH, AS FOLLOWS: "NO TRESPASSING/TREE PROTECTION AREA/PROHIBIDO
9. REMOVAL OF EXCAVATED MATERIALS AND DAILY CLEANUP OPERATIONS SHALL BEEN FILLED OUT.
BE PERFORMED IN COMPLIANCE WITH THE SPECIFICATIONS AND TO THE 8. ALL EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL ENTIRE ENTRAR / ZONA PROTECTORA PARA LOS ARBOLES."
SATISFACTION OF THE OWNER/ENGINEER. SITE IS PERMANENTLY STABILIZED WITH VEGETATION AS PER SEEDING
SPECIFICATIONS AND SCHEDULE. ALL TEMPORARY EROSION CONTROL 3. ROOT PROTECTION ZONE EQUALS ONE FOOT OF RADIUS FOR EVERY INCH OF DIAMETER OF EXISTING TREES OR SIX FOOT RADIUS, WHICHEVER IS
10. EXCESS/UNSUITABLE SPOIL TO BE REMOVED FROM SITE. PRIOR TO BEGINNING DEVICES ARE TO BE REMOVED AFTER PERMANENT STABILIZATION HAS BEEN GREATER NO DISTURBANCE IS ALLOWED IN THIS AREA. AREA IS TO BE PROTECTED WITH BOTH TREE PROTECTION FENCING AND WARNING
CONSTRUCTION, CONTRACTOR SHALL SUBMIT THE OFF -SITE SPOIL LOCATIONS ACHIEVED AND APPROVAL HAS BEEN GRANTED BY THE LAND QUALITY SIGNS.
TO BE USED AND PROVIDE DOCUMENTATION OF EROSION CONTROL MEASURES SECTION AND ENGINEER.
TO BE PROVIDED DURING DISPOSAL OPERATIONS. CONTRACTORS OFF -SITE 4. AT THE START OF GRADING INVOLVING THE LOWERING OF EXISTING GRADE AROUND A TREE OR STRIPPING OF TOPSOIL, A CLEAN, SHARP,
SEDIMENT CONTROL MEASURES MUST BE APPROVED BY NC DEMLR PRIOR TO 9. RESTORE ALL DISTURBED AREAS INCLUDING DITCHES/SWALES, VERTICAL CUT SHALL BE MADE AT THE EDGE OF THE TREE SAVE AREA PRIOR TO OR AT THE SAME TIME AS SILT FENCE AND OTHER EROSION
SPOIL DISPOSAL. STAGING/LAYDOWN/PARKING AREAS TO ORIGINAL GRADE AND ELEVATION CONTROL MEASURES ARE INSTALLED. THE TREE PROTECTION FENCING SHALL BE INSTALLED ON THE SIDE OF THE CUT FARTHEST AWAY FROM
AND ORIGINAL OR BETTER CONDITION, EXCEPT WHERE NOTED ON THE THE TREE TRUNK AND SHALL REMAIN IN PLACE UNTIL ALL CONSTRUCTION IN THE VICINITY OF THE TREES IS COMPLETE. NO STORAGE OF
11. ALL EROSION AND SEDIMENTATION CONTROLS SHALL BE IMPLEMENTED BEFORE CONTRACT DRAWINGS. MATERIALS, FILL, OR EQUIPMENT AND NO TRESPASSING SHALL BE ALLOWED WITHIN THE BOUNDARY OF THE PROTECTED AREA.
CONSTRUCTION COMMENCES AND SHALL NOT BE REMOVED UNTIL PERMANENT
GROUND COVER STABILIZATION HAS BEEN ESTABLISHED.
12. THE CONTRACTOR SHALL RECORD AND SUPPLY TO THE ENGINEER THE
FOLLOWING INFORMATION:
A. THE LOCATION OF ALL UTILITIES CROSSED AND THE NEW LOCATION AND
DEPTH OF ALL RELOCATED AND/OR ADJUSTED UTILITIES.
13. HORIZONTAL CONTROL: NAD 83 (2011)
VERTICAL CONTROL: NAVD 88
14. SEE DWG C104 FOR SURVEY INFORMATION.
NOTIFICATION OF LAND RESOURCES SEDIMENT AND EROSION CONTROL SELF -INSPECTION PROGRAM:
THE SEDIMENTATION POLLUTION CONTROL ACT WAS AMENDED IN 2006 TO REQUIRE THAT PERSONS RESPONSIBLE FOR LAND DISTURBING ACTIVITIES INSPECT A PROJECT AFTER EACH PHASE OF THE PROJECT TO
MAKE SURE THAT THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN IS BEING FOLLOWED. RULES DETAILING THE DOCUMENTATION OF THESE INSPECTIONS TOOK EFFECT OCTOBER 1, 2010. THE
SELF -INSPECTION PROGRAM IS SEPARATE FROM THE WEEKLY SELF MONITORING PROGRAM OF THE NPDES STORMWATER PERMIT FOR CONSTRUCTION ACTIVITIES. THE FOCUS OF THE SELF -INSPECTION REPORT IS
THE INSTALLATION AND MAINTENANCE OF EROSION AND SEDIMENTATION CONTROL MEASURES ACCORDING TO THE APPROVED PLAN. THE INSPECTIONS MUST BE CONDUCTED AFTER EACH PHASE OF THE PROJECT,
AND CONTINUED UNTIL PERMANENT GROUND COVER IS ESTABLISHED IN ACCORDANCE WITH THE NCGS 113A 54.1 AND 15A NCAC 4B.0131. THE SELF -INSPECTION REPORT FORM IS AVAILABLE AS AN EXCEL
SPREADSHEET FROM HTTP://WWW.DLR.ENR.STATE.NC.US/PAGES/SEDIMENTATION_NEW.HTML. IF YOU HAVE ANY QUESTIONS OR CANNOT ACCESS THE FORM, PLEASE CONTACT THIS OFFICE AT [phone].
LEGEND
SYMBOLS
NEW DEMO EXISTING
NEW EXISTING
NEW DEMO EXISTING
ABBREVIATIONS
8 TEL PED///
POWER POLE
SOIL BORING
rTh'WThrVThm APPROXIMATE WOODLINE
\
ACF ANNUAL CHANCE FLOOD UGT UNDERGROUND
BFE BASE FLOOD ELEVATION TELEPHONE
FC FUTURE CONDITIONS G GAS
SS SANITARY SEWER
EOP EDGE OF PAVEMENT W WATER
LOC LIMITS OF CONSTRUCTION
R PROPERTY LINE
OHE OVERHEAD ELECTRIC
FOC FIBER OPTIC CABLE CENTER LINE
RECM ROLLED EROSION
LP LIGHT POLE CONTROL MATTING
UGE UNDERGROUND ELECTRIC PP POWER POLE
BUILDING/STRUCTURE
(RESET/NEW) FENCE
300
300 / CONTOUR
- FEMA FLOODPLAIN
STREAM
SWALE WITH LINING
• \
��
\``
4
❑ I
`-1
■
❑
- YARD PIPING
MANHOLE
YARD INLET
FLARED END SECTION
i
//////i'/i'// BITUMINOUS PAVEMENT
...
STABILIZED OUTLET
(X302.00) 302.00 SPOT ELEVATION
CONCRETE CURB
�_��
•••�
FOR SILT FENCE
j///////////
AND GUTTER
%
j
YARD INLET PROTECTION
PROPERTY LINE
OVERHEAD ELECTRIC
/, CONCRETE PAD/PAVING
�- �- ��
i: =i::
GRAVEL CONSTRUCTION
ENTRANCE
OHE OHE
\\\\� ABANDON W/
SF
1 1 1 1 1 1 1 // ////////// / CONCRETE SIDEWALK
w w WATER PIPING
ELECTRIC DUCTBANK
SILT FENCE
- - - -
�T� WETLANDS
TPF TREE PROTECTION FENCE
LOD LIMITS OF DISTURBANCE
FILLABLE FLOW
•
PROJECT
ENGINEER: D. C. HOPKINS
90% DESIGN REVIEW
DO NOT USE FOR CONSTRUCTION
azenDEPARTMENT
OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
GENERAL
CIVIL
NOTES AND LEGEND
DATE: MARCH 2O21
DESIGNED BY: C. WILSON
HAZEN No.: 31306-001
DRAWN BY: C. WILSON
CONTRACT NO.: 1
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION
IMPROVEMENTS
-
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO.: C-0381
CHECKED BY: M. SANTOWASSO
DRAWING
NUMBER:
C 101
IF THIS BAR DOES NOT 0 1/2" 1"
MEASURE 1" THEN DRAWING
-
- -
REV
ISSUED FOR
DATE
BY
IS NOT TO FULL SCALE

BY: CDWILSON
PLOT DATE: 4/8/2021
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES
FOR COMPLIANCE WITH THE NCGO1 CONSTRUCTION GENERAL
PERMIT
IMPLEMENTING THE DETAILS AND SPECIFICATIONS ON THIS PLAN SHEET WILL RESULT
IN THE CONSTRUCTION ACTIVITY BEING CONSIDERED COMPLIANT WITH THE GROUND
STABILIZATION AND MATERIALS HANDLING SECTIONS OF NCGO1 CONSTRUCTION
GENERAL PERMIT (SECTIONS E AND F, RESPECTIVELY). THE PERMITTEE SHALL COMPLY
WITH THE EROSION AND SEDIMENT CONTROL PLAN APPROVED BY THE DELEGATED
AUTHORITY HAVING JURISDICTION. ALL DETAILS AND SPECIFICATIONS SHOWN ON THIS
SHEET MAY NOT APPLY DEPENDING ON SITE CONDITIONS AND THE DELEGATED
AUTHORITY HAVING JURISDICTION.
SECTION E: GROUND STABILIZATION
REQUIRED GROUND STABILIZATION TIMEFRAMES
STABILIZE WITHIN THIS
SITE AREA DESCRIPTION
MANY CALENDAR DAYS
AFTER CEASING LAND
TIME FRAME VARIATIONS
DISTURBANCE
(A) PERIMETER DIKES,
SWALES, DITCHES, AND
7
NONE
PERIMETER SLOPES
(B) HIGH WATER QUALITY
(HQW) ZONES
7
NONE
IF SLOPES ARE 10' OR LESS IN
(C) SLOPES STEEPER
7
LENGTH AND ARE NOT STEEPER
THAN 3:1
THAN 2:1, 14 DAYS ARE
ALLOWED
-7 DAYS FOR SLOPES GREATER
THAN 50' IN LENGTH AND WITH
SLOPES STEEPER THAN 4:1
(D) SLOPES 3:1 TO 4:1
14
-7 DAYS FOR PERIMETER DIKES,
SWALES, DITCHES, PERIMETER
SLOPES AND HQW ZONES
-10 DAYS FOR FALLS LAKE
WATERSHED
-7 DAYS FOR PERIMETER DIKES,
SWALES, DITCHES, PERIMETER
(E) AREAS WITH SLOPES
14
SLOPES, AND HQW ZONES
FLATTER THAN 4:1
-10 DAYS FOR FALLS LAKE
WATERSHED UNLESS THERE IS
ZERO SLOPE
NOTE: AFTER THE PERMANENT CESSATION OF CONSTRUCTION ACTIVITIES, ANY AREAS
WITH TEMPORARY GROUND STABILIZATION SHALL BE CONVERTED TO PERMANENT
GROUND STABILIZATION AS SOON AS PRACTICABLE BUT IN NO CASE LONGER THAN 90
CALENDAR DAYS AFTER THE LAST LAND DISTURBING ACTIVITY. TEMPORARY GROUND
STABILIZATION SHALL BE MAINTAINED IN A MANNER TO RENDER THE SURFACE STABLE
AGAINST ACCELERATED EROSION UNTIL PERMANENT GROUND STABILIZATION IS
ACHIEVED.
GROUND STABILIZATION SPECIFICATION
STABILIZE THE GROUND SUFFICIENTLY SO THAT RAIN WILL NOT DISLODGE THE SOIL.
USE ONE OF THE TECHNIQUES IN THE TABLE BELOW:
TEMPORARY STABILIZATION
PERMANENT STABILIZATION
• TEMPORARY GRASS SEED COVERED
WITH STRAW OR OTHER MULCHES AND
TACKIFIERS
• HYDROSEEDING
• ROLLED EROSION CONTROL PRODUCTS
WITH OR WITHOUT TEMPORARY GRASS
SEED
• APPROPRIATELY APPLIED STRAW OR
OTHER MULCH
• PLASTIC SHEETING
• PERMANENT GRASS SEED COVERED WITH
STRAW OR OTHER MULCHES AND
TACKIFIERS
• GEOTEXTILE FABRICS SUCH AS
PERMANENT SOIL REINFORCEMENT
MATTING
• HYDROSEEDING
• SHRUBS OR OTHER PERMANENT
PLANTINGS COVERED WITH MULCH
• UNIFORM AND EVENLY DISTRIBUTED
GROUND COVER SUFFICIENT TO RESTRAIN
EROSION
• STRUCTURAL METHODS SUCH AS
CONCRETE, ASPHALT OR RETAINING
WALLS
• ROLLED EROSION CONTROL PRODUCTS
WITH GRASS SEED
EQUIPMENT AND VEHICLE MAINTENANCE
1. MAINTAIN VEHICLES AND EQUIPMENT TO PREVENT DISCHARGE OF FLUIDS.
2. PROVIDE DRIP PANS UNDER ANY STORED EQUIPMENT.
3. IDENTIFY LEAKS AND REPAIR AS SOON AS FEASIBLE, OR REMOVE LEAKING
EQUIPMENT FROM THE PROJECT.
4. COLLECT ALL SPENT FLUIDS, STORE IN SEPARATE CONTAINERS AND PROPERLY
DISPOSE AS HAZARDOUS WASTE (RECYCLE WHEN POSSIBLE).
5. REMOVE LEAKING VEHICLES AND CONSTRUCTION EQUIPMENT FROM SERVICE
UNTIL THE PROBLEM HAS BEEN CORRECTED.
6. BRING USED FUELS, LUBRICANTS, COOLANTS, HYDRAULIC FLUIDS AND OTHER
PETROLEUM PRODUCTS TO A RECYCLING OR DISPOSAL CENTER THAT HANDLES
THESE MATERIALS.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. NEVER BURY OR BURN WASTE. PLACE LITTER AND DEBRIS IN APPROVED WASTE
CONTAINERS.
2. PROVIDE A SUFFICIENT NUMBER AND SIZE OF WASTE CONTAINERS (E.G
DUMPSTER, TRASH RECEPTACLE) ON SITE TO CONTAIN CONSTRUCTION AND
DOMESTIC WASTES.
3. LOCATE WASTE CONTAINERS AT LEAST 50 FEET AWAY FROM STORM DRAIN
INLETS AND SURFACE WATERS UNLESS NO OTHER ALTERNATIVES ARE
REASONABLY AVAILABLE.
4. LOCATE WASTE CONTAINERS ON AREAS THAT DO NOT RECEIVE SUBSTANTIAL
AMOUNTS OF RUNOFF FROM UPLAND AREAS AND DOES NOT DRAIN DIRECTLY TO
A STORM DRAIN, STREAM OR WETLAND.
5. COVER WASTE CONTAINERS AT THE END OF EACH WORKDAY AND BEFORE
STORM EVENTS OR PROVIDE SECONDARY CONTAINMENT. REPAIR OR REPLACE
DAMAGED WASTE CONTAINERS.
6. ANCHOR ALL LIGHTWEIGHT ITEMS IN WASTE CONTAINERS DURING TIMES OF HIGH
WINDS.
7. EMPTY WASTE CONTAINERS AS NEEDED TO PREVENT OVERFLOW. CLEAN UP
IMMEDIATELY IF CONTAINERS OVERFLOW.
8. DISPOSE WASTE OFF -SITE AT AN APPROVED DISPOSAL FACILITY.
9. ON BUSINESS DAYS, CLEAN UP AND DISPOSE OF WASTE IN DESIGNATED WASTE
CONTAINERS.
PAINT AND OTHER LIQUID WASTE
1. DO NOT DUMP PAINT AND OTHER LIQUID WASTE INTO STORM DRAINS, STREAMS
OR WETLANDS.
2. LOCATE PAINT WASHOUTS AT LEAST 50 FEET AWAY FROM STORM DRAIN INLETS
AND SURFACE WATERS UNLESS NO OTHER ALTERNATIVES ARE REASONABLY
AVAILABLE.
3. CONTAIN LIQUID WASTES IN A CONTROLLED AREA.
4. CONTAINMENT MUST BE LABELED, SIZED AND PLACED APPROPRIATELY FOR THE
NEEDS OF SITE.
5. PREVENT THE DISCHARGE OF SOAPS, SOLVENTS, DETERGENTS AND OTHER
LIQUID WASTES FROM CONSTRUCTION SITES.
PORTABLE TOILETS
1. INSTALL PORTABLE TOILETS ON LEVEL GROUND, AT LEAST 50 FEET AWAY FROM
STORM DRAINS, STREAMS OR WETLANDS UNLESS THERE IS NO ALTERNATIVE
REASONABLY AVAILABLE. IF 50 FOOT OFFSET IS NOT ATTAINABLE, PROVIDE
RELOCATION OF PORTABLE TOILET BEHIND SILT FENCE OR PLACE ON A GRAVEL
PAD AND SURROUND WITH SAND BAGS.
2. PROVIDE STAKING OR ANCHORING OF PORTABLE TOILETS DURING PERIODS OF
HIGH WINDS OR IN HIGH FOOT TRAFFIC AREAS.
3. MONITOR PORTABLE TOILETS FOR LEAKING AND PROPERLY DISPOSE OF ANY
LEAKED MATERIAL. UTILIZE A LICENSED SANITARY WASTE HAULER TO REMOVE
LEAKING PORTABLE TOILETS AND REPLACE WITH PROPERLY OPERATING UNIT.
EARTHEN STOCKPILE MANAGEMENT
1 SHOW STOCKPILE LOCATIONS ON PLANS. LOCATE EARTHEN -MATERIAL STOCKPILE
AREAS AT LEAST 50 FEET AWAY FROM STORM DRAIN INLETS, SEDIMENT BASINS,
PERIMETER SEDIMENT CONTROLS AND SURFACE WATERS UNLESS IT CAN BE
SHOWN NO OTHER ALTERNATIVES ARE REASONABLY AVAILABLE.
2. PROTECT STOCKPILE WITH SILT FENCE INSTALLED ALONG TOE OF SLOPE WITH A
MINIMUM OFFSET OF FIVE FEET FROM THE TOE OF STOCKPILE.
3. PROVIDE STABLE STONE ACCESS POINT WHEN FEASIBLE.
4. STABILIZE STOCKPILE WITHIN THE TIMEFRAMES PROVIDED ON THIS SHEET AND IN
ACCORDANCE WITH THE APPROVED PLAN AND ANY ADDITIONAL REQUIREMENTS.
SOIL STABILIZATION IS DEFINED AS VEGETATIVE, PHYSICAL OR CHEMICAL
COVERAGE TECHNIQUES THAT WILL RESTRAIN ACCELERATED EROSION ON
DISTURBED SOILS FOR TEMPORARY OR PERMANENT CONTROL NEEDS.
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SLOPES (TYP.)
CLEARLY MARKED SIGNAGE
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SECTION A -A
ONSITE CONCRETE WASHOUT STRUCTURE WITH LINER
NOTES:
1. ACTUAL LOCATION DETERMINED IN FIELD
SAND BAGS (TYP.)
OR STAPLES
10 MIL PLASTIC LINING
2. THE CONCRETE WASHOUT STRUCTURES SHALL BE
MAINTAINED WHEN THE LIQUID AND/OR SOLID REACHES 75% OF
THE STRUCTURES CAPACITY.
PLAN 3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY
MARKED WITH SIGNAGE NOTING DEVICE.
BELOW GRADE WASHOUT STRUCTURE
NOT TO SCALE
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SECTION B-B
NOTES:
1. ACTUAL LOCATION DETERMINED IN FIELD
2. THE CONCRETE WASHOUT STRUCTURES SHALL BE
MAINTAINED WHEN THE LIQUID AND/OR SOLID REACHES 75% OF
THE STRUCTURES CAPACITY TO PROVIDE ADEQUATE HOLDING
CAPACITY WITH A MINIMUM 12 INCHES OF FREEBOARD.
3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE CLEARY
MARKED WITH SIGNAGE NOTING DEVICE.
ABOVE GRADE WASHOUT STRUCTURE
NOT TO SCALE
10 MIL PLASTIC
LINING
1:1 SIDE SLOPE
(TYP.)
SANDBAGS (TYP.)
OR STAPLES
HIGH COHESIVE &
LOW FILTRATION
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CONCRETE WASHOUTS
1. DO NOT DISCHARGE CONCRETE OR CEMENT SLURRY FROM THE SITE.
2. DISPOSE OF, OR RECYCLE SETTLED, HARDENED CONCRETE RESIDUE IN ACCORDANCE WITH
LOCAL AND STATE SOLID WASTE REGULATIONS AND AT AN APPROVED FACILITY.
3. MANAGE WASHOUT FROM MORTAR MIXERS IN ACCORDANCE WITH THE ABOVE ITEM AND IN
ADDITION PLACE THE MIXER AND ASSOCIATED MATERIALS ON IMPERVIOUS BARRIER AND
WITHIN LOT PERIMETER SILT FENCE.
4. INSTALL TEMPORARY CONCRETE WASHOUTS PER LOCAL REQUIREMENTS, WHERE
APPLICABLE. IF AN ALTERNATE METHOD OR PRODUCT IS TO BE USED, CONTACT YOUR
APPROVAL AUTHORITY FOR REVIEW AND APPROVAL. IF LOCAL STANDARD DETAILS ARE NOT
AVAILABLE, USE ONE OF THE TWO TYPES OF TEMPORARY CONCRETE WASHOUTS PROVIDED
ON THIS DETAIL.
5. DO NOT USE CONCRETE WASHOUTS FOR DEWATERING OR STORING DEFECTIVE CURB OR
SIDEWALK SECTIONS. STORMWATER ACCUMULATED WITHIN THE WASHOUT MAY NOT BE
PUMPED INTO OR DISCHARGED TO THE STORM DRAIN SYSTEM OR RECEIVING SURFACE
WATERS. LIQUID WASTE MUST BE PUMPED OUT AND REMOVED FROM PROJECT.
6. LOCATE WASHOUTS AT LEAST 50 FEET FROM STORM DRAIN INLETS AND SURFACE WATERS
UNLESS IT CAN BE SHOWN THAT NO OTHER ALTERNATIVES ARE REASONABLY AVAILABLE. AT
A MINIMUM, INSTALL PROTECTION OF STORM DRAIN INLET(S) CLOSEST TO THE WASHOUT
WHICH COULD RECEIVE SPILLS OR OVERFLOW.
7. LOCATE WASHOUTS IN AN EASILY ACCESSIBLE AREA, ON LEVEL GROUND AND INSTALL A
STONE ENTRANCE PAD IN FRONT OF THE WASHOUT. ADDITIONAL CONTROLS MAY BE
REQUIRED BY THE APPROVING AUTHORITY.
8. INSTALL AT LEAST ONE SIGN DIRECTING CONCRETE TRUCKS TO THE WASHOUT WITHIN THE
PROJECT LIMITS. POST SIGNAGE ON THE WASHOUT ITSELF TO IDENTIFY THIS LOCATION.
9. REMOVE LEAVINGS FROM THE WASHOUT WHEN AT APPROXIMATELY 75% CAPACITY TO LIMIT
OVERFLOW EVENTS. REPLACE THE TARP, SAND BAGS OR OTHER TEMPORARY STRUCTURAL
COMPONENTS WHEN NO LONGER FUNCTIONAL. WHEN UTILIZING ALTERNATIVE OR
PROPRIETARY PRODUCTS, FOLLOW MANUFACTURER'S INSTRUCTIONS.
10. AT THE COMPLETION OF THE CONCRETE WORK, REMOVE REMAINING LEAVINGS AND DISPOSE
OF IN AN APPROVED DISPOSAL FACILITY. FILL PIT, IF APPLICABLE, AND STABILIZE ANY
DISTURBANCE CAUSED BY REMOVAL OF WASHOUT.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. STORE AND APPLY HERBICIDES, PESTICIDES AND RODENTICIDES IN ACCORDANCE WITH LABEL
RESTRICTIONS.
2. STORE HERBICIDES, PESTICIDES AND RODENTICIDES IN THEIR ORIGINAL CONTAINERS WITH
THE LABEL, WHICH LISTS DIRECTIONS FOR USE, INGREDIENTS AND FIRST AID STEPS IN CASE
OF ACCIDENTAL POISONING.
3. DO NOT STORE HERBICIDES, PESTICIDES AND RODENTICIDES IN AREAS WHERE FLOODING IS
POSSIBLE OR WHERE THEY MAY SPILL OR LEAK INTO WELLS, STORMWATER DRAINS, GROUND
WATER OR SURFACE WATER. IF A SPILL OCCURS, CLEAN AREA IMMEDIATELY.
4. DO NOT STOCKPILE THESE MATERIALS ONSITE.
HAZARDOUS AND TOXIC WASTE
1. CREATE DESIGNATED HAZARDOUS WASTE COLLECTION AREAS ON -SITE.
2. PLACE HAZARDOUS WASTE CONTAINERS UNDER COVER OR IN SECONDARY CONTAINMENT.
3. DO NOT STORE HAZARDOUS CHEMICALS, DRUMS OR BAGGED MATERIALS DIRECTLY ON THE
GROUND.
PROJECT
ENGINEER:
D. C. HOPKINS
DESIGNED BY:
C. WILSON
DRAWN BY:
C. WILSON
CHECKED BY:
M. SANTOWASSO
REV
ISSUED FOR
DATE
BY
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
0
1/2"
1"
90% DESIGN REVIEW
DO NOT USE FOR CONSTRUCTION
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO. : C-0381
DEPARTMENT OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION
IMPROVEMENTS
GENERAL
CIVIL
GROUND STABILIZATION
AND MATERIALS HANDLING
DATE:
MARCH 2021
HAZEN NO.:
31306-001
CONTRACT NO.:
1
DRAWING
NUMBER:
C102
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PLOT DATE: 4/8/2021
PART
SELF -INSPECTION, RECORDKEEPING
SECTION A: SELF -INSPECTION
III
AND REPORTING
BUSINESS HOURS IN ACCORDANCE WITH THE TABLE
WOULD CAUSE THE SAFETY OF THE INSPECTION
BE DELAYED UNTIL THE NEXT BUSINESS DAY ON
ADDITION, WHEN A STORM EVENT OF EQUAL TO OR
BUSINESS HOURS, THE SELF -INSPECTION SHALL BE
BUSINESS DAY. ANY TIME WHEN INSPECTIONS
RECORD.
SELF -INSPECTIONS ARE REQUIRED DURING NORMAL
BELOW. WHEN ADVERSE WEATHER OR SITE CONDITIONS
PERSONNEL TO BE IN JEOPARDY, THE INSPECTION MAY
WHICH IT IS SAFE TO PERFORM THE INSPECTION. IN
GREATER THAN 1.0 INCH OCCURS OUTSIDE OF NORMAL
PERFORMED UPON THE COMMENCEMENT OF THE NEXT
WERE DELAYED SHALL BE NOTED IN THE INSPECTION
REQUIRED GROUND STABILIZATION TIMEFRAMES
INSPECT
FREQUENCY (DURING
NORMAL BUSINESS
HOURS)
INSPECTION RECORDS MUST INCLUDE:
(1) RAIN GAUGE
MAINTAINED IN GOOD
WORKING ORDER
DAILY
DAILY RAINFALL AMOUNTS.
IF NO DAILY RAIN GAUGE OBSERVATIONS ARE MADE
DURING WEEKEND OR HOLIDAY PERIODS, AND NO
INDIVIDUAL -DAY RAINFALL INFORMATION IS
AVAILABLE, RECORD THE CUMULATIVE RAIN
MEASUREMENT FOR THOSE UN -ATTENDED DAYS
(AND THIS WILL DETERMINE IF A SITE INSPECTION IS
NEEDED). DAYS ON WHICH NO RAINFALL OCCURRED
SHALL BE RECORDED AS "ZERO." THE PERMITTEE
MAY USE ANOTHER RAIN -MONITORING DEVICE
APPROVED BY THE DIVISION.
(2) E&SC MEASURES
AT LEAST ONCE PER 7
CALENDAR DAYS AND
WITHIN 24 HOURS OF A
RAIN EVENT > 1.0 INCH
IN 24 HOURS
1. IDENTIFICATION OF THE MEASURES INSPECTED,
2. DATE AND TIME OF THE INSPECTION,
3. NAME OF THE PERSON PERFORMING THE
INSPECTION,
4. INDICATION OF WHETHER THE MEASURES WERE
OPERATING PROPERLY,
5. DESCRIPTION OF MAINTENANCE NEEDS FOR THE
MEASURE,
6. DESCRIPTION, EVIDENCE, AND DATE OF
CORRECTIVE ACTIONS TAKEN.
(3) STORMWATER
DISCHARGE
OUTFALLS (SDOS)
AT LEAST ONCE PER 7
CALENDAR DAYS AND
WITHIN 24 HOURS OF A
RAIN EVENT > 1.0 INCH
IN 24 HOURS
1. IDENTIFICATION OF THE MEASURES INSPECTED,
2. DATE AND TIME OF THE INSPECTION,
3. NAME OF THE PERSON PERFORMING THE
INSPECTION,
4. INDICATION OF WHETHER THE MEASURES WERE
OPERATING PROPERLY,
5. DESCRIPTION OF MAINTENANCE NEEDS FOR THE
MEASURE,
6. DESCRIPTION, EVIDENCE, AND DATE OF
CORRECTIVE ACTIONS TAKEN.
(4) PERIMETER OF SITE
AT LEAST ONCE PER 7
CALENDAR DAYS AND
WITHIN 24 HOURS OF A
RAIN EVENT > 1.0 INCH
IN 24 HOURS
1. IF VISIBLE SEDIMENTATION IS FOUND OUTSIDE
SITE LIMITS, THEN A RECORD OF THE FOLLOWING
SHALL BE MADE:
2. ACTIONS TAKEN TO CLEAN UP OR STABILIZE THE
SEDIMENT THAT HAS LEFT THE SITE LIMITS,
3. DESCRIPTION, EVIDENCE, AND DATE OF
CORRECTIVE ACTIONS TAKEN, AND
4. AN EXPLANATION AS TO THE ACTIONS TAKEN TO
CONTROL FUTURE RELEASES.
(5) STREAMS OR
WETLANDS ONSITE
OR OFFSITE (WHERE
ACCESSIBLE)
AT LEAST ONCE PER 7
CALENDAR DAYS AND
WITHIN 24 HOURS OF A
RAIN EVENT > 1.0 INCH
IN 24 HOURS
1. IF THE STREAM OR WETLAND HAS INCREASED
VISIBLE SEDIMENTATION OR A STREAM HAS
VISIBLE INCREASED TURBIDITY FROM THE
CONSTRUCTION ACTIVITY, THEN A RECORD OF
THE FOLLOWING SHALL BE MADE:
2. DESCRIPTION, EVIDENCE AND DATE OF
CORRECTIVE ACTIONS TAKEN, AND
3. RECORDS OF THE REQUIRED REPORTS TO THE
APPROPRIATE DIVISION REGIONAL OFFICE PER
PART III, SECTION C, ITEM (2)(A) OF THIS PERMIT.
(6) GROUND
STABILIZATION
MEASURES
AFTER EACH PHASE OF
GRADING
1. THE PHASE OF GRADING (INSTALLATION OF
PERIMETER E&SC MEASURES, CLEARING AND
GRUBBING, INSTALLATION OF STORM DRAINAGE
FACILITIES, COMPLETION OF ALL
LAND -DISTURBING ACTIVITY, CONSTRUCTION OR
REDEVELOPMENT, PERMANENT GROUND
COVER).
2. DOCUMENTATION THAT THE REQUIRED GROUND
STABILIZATION MEASURES HAVE BEEN
PROVIDED WITHIN THE REQUIRED TIMEFRAME
OR AN ASSURANCE THAT THEY WILL BE
PROVIDED AS SOON AS POSSIBLE.
NOTE: THE RAIN INSPECTION RESETS THE REQUIRED 7 DAY CALENDAR DAY INSPECTION REQUIREMENT
SELF -INSPECTION,
SECTION B: RECORDKEEPING
PART III
RECORDKEEPING AND REPORTING
ANY APPROVED DEVIATION SHALL BE KEPT ON THE SITE. THE
THROUGHOUT THE COVERAGE UNDER THIS PERMIT.
THE E&SC PLAN SHALL BE KEPT ON SITE AND AVAILABLE FOR
BUSINESS HOURS.
1. E&SC PLAN DOCUMENTATION
THE APPROVED E&SC PLAN AS WELL AS
APPROVED E&SC PLAN MUST BE KEPT UP-TO-DATE
THE FOLLOWING ITEMS PERTAINING TO
INSPECTION AT ALL TIMES DURING NORMAL
ITEM TO DOCUMENT
INSPECTION RECORDS MUST INCLUDE:
(A) EACH E&SC MEASURE HAS BEEN
INSTALLED AND DOES NOT SIGNIFICANTLY
DEVIATE FROM THE LOCATIONS,
DIMENSIONS AND RELATIVE ELEVATIONS
SHOWN ON THE APPROVED E&SC PLAN.
INITIAL AND DATE EACH E&SC MEASURE ON A COPY OF THE
APPROVED E&SC PLAN OR COMPLETE, DATE AND SIGN AN
INSPECTION REPORT THAT LISTS EACH E&SC MEASURE
SHOWN ON THE APPROVED E&SC PLAN. THIS
DOCUMENTATION IS REQUIRED UPON THE INITIAL
INSTALLATION OF THE E&SC MEASURES OR IF THE E&SC
MEASURES ARE MODIFIED AFTER INITIAL INSTALLATION.
(B) A PHASE OF GRADING HAS BEEN
COMPLETED.
INITIAL AND DATE A COPY OF THE APPROVED E&SC PLAN OR
COMPLETE, DATE AND SIGN AN INSPECTION REPORT TO
INDICATE COMPLETION OF THE CONSTRUCTION PHASE.
(C) GROUND COVER IS LOCATED AND
INSTALLED IN ACCORDANCE WITH THE
APPROVED E&SC PLAN.
INITIAL AND DATE A COPY OF THE APPROVED E&SC PLAN OR
COMPLETE, DATE AND SIGN AN INSPECTION REPORT TO
INDICATE COMPLIANCE WITH APPROVED GROUND COVER
SPECIFICATIONS.
(D) THE MAINTENANCE AND REPAIR
REQUIREMENTS FOR ALL E&SC
MEASURES HAVE BEEN PERFORMED.
COMPLETE, DATE AND SIGN AN INSPECTION REPORT.
(E) CORRECTIVE ACTIONS HAVE BEEN
TAKEN TO E&SC MEASURES.
INITIAL AND DATE A COPY OF THE APPROVED E&SC PLAN OR
COMPLETE, DATE AND SIGN AN INSPECTION REPORT TO
INDICATE THE COMPLETION OF THE CORRECTIVE ACTION.
2. ADDITIONAL DOCUMENTATION TO BE KEPT ON SITE
IN ADDITION TO THE E&SC PLAN DOCUMENTS ABOVE, THE FOLLOWING ITEMS SHALL BE KEPT ON THE
SITE AND AVAILABLE FOR INSPECTORS AT ALL TIMES DURING NORMAL BUSINESS HOURS, UNLESS THE
DIVISION PROVIDES A SITE -SPECIFIC EXEMPTION BASED ON UNIQUE SITE CONDITIONS THAT MAKE
THIS REQUIREMENT NOT PRACTICAL:
(A) THIS GENERAL PERMIT AS WELL AS THE CERTIFICATE OF COVERAGE, AFTER IT IS RECEIVED.
(B) RECORDS OF INSPECTIONS MADE DURING THE PREVIOUS TWELVE MONTHS. THE PERMITTEE SHALL
RECORD THE REQUIRED OBSERVATIONS ON THE INSPECTION RECORD FORM PROVIDED BY THE
DIVISION OR A SIMILAR INSPECTION FORM THAT INCLUDES ALL THE REQUIRED ELEMENTS. USE OF
ELECTRONICALLY -AVAILABLE RECORDS IN LIEU OF THE REQUIRED PAPER COPIES WILL BE ALLOWED
IF SHOWN TO PROVIDE EQUAL ACCESS AND UTILITY AS THE HARD -COPY RECORDS.
3. DOCUMENTATION TO BE RETAINED FOR THREE YEARS
ALL DATA USED TO COMPLETE THE E-NOI AND ALL INSPECTION RECORDS SHALL BE MAINTAINED FOR A
PERIOD OF THREE YEARS AFTER PROJECT COMPLETION AND MADE AVAILABLE UPON REQUEST. [40 CFR
122.41]
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
SEDIMENT BASINS AND TRAPS THAT RECEIVE RUNOFF FROM DRAINAGE AREAS OF ONE ACRE OR MORE SHALL USE OUTLET STRUCTURES THAT WITHDRAW WATER FROM THE SURFACE WHEN THESE DEVICES NEED TO BE
DRAWN DOWN FOR MAINTENANCE OR CLOSE OUT UNLESS THIS IS INFEASIBLE. THE CIRCUMSTANCES IN WHICH IT IS NOT FEASIBLE TO WITHDRAW WATER FROM THE SURFACE SHALL BE RARE (FOR EXAMPLE, TIMES WITH
EXTENDED COLD WEATHER). NON -SURFACE WITHDRAWALS FROM SEDIMENT BASINS SHALL BE ALLOWED ONLY WHEN ALL OF THE FOLLOWING CRITERIA HAVE BEEN MET:
(A) THE E&SC PLAN AUTHORITY HAS BEEN PROVIDED WITH DOCUMENTATION OF THE NON -SURFACE WITHDRAWAL AND THE SPECIFIC TIME PERIODS OR CONDITIONS IN WHICH IT WILL OCCUR. THE NON -SURFACE
WITHDRAWAL
SHALL NOT COMMENCE UNTIL THE E&SC PLAN AUTHORITY HAS APPROVED THESE ITEMS,
(B) THE NON -SURFACE WITHDRAWAL HAS BEEN REPORTED AS AN ANTICIPATED BYPASS IN ACCORDANCE WITH PART III, SECTION C, ITEM (2)(C) AND (D) OF THIS PERMIT,
(C) DEWATERING DISCHARGES ARE TREATED WITH CONTROLS TO MINIMIZE DISCHARGES OF POLLUTANTS FROM STORMWATER THAT IS REMOVED FROM THE SEDIMENT BASIN. EXAMPLES OF APPROPRIATE CONTROLS
INCLUDE
PROPERLY SITED, DESIGNED AND MAINTAINED DEWATERING TANKS, WEIR TANKS, AND FILTRATION SYSTEMS,
(D) VEGETATED, UPLAND AREAS OF THE SITES OR A PROPERLY DESIGNED STONE PAD IS USED TO THE EXTENT FEASIBLE AT THE OUTLET OF THE DEWATERING TREATMENT DEVICES DESCRIBED IN ITEM (C) ABOVE,
(E) VELOCITY DISSIPATION DEVICES SUCH AS CHECK DAMS, SEDIMENT TRAPS, AND RIPRAP ARE PROVIDED AT THE DISCHARGE POINTS OF ALL DEWATERING DEVICES, AND
(F) SEDIMENT REMOVED FROM THE DEWATERING TREATMENT DEVICES DESCRIBED IN ITEM (C) ABOVE IS DISPOSED OF IN A MANNER THAT DOES NOT CAUSE DEPOSITION OF SEDIMENT INTO WATERS OF THE UNITED
STATES.
SELF -INSPECTION,
SECTION C: REPORTING
PART III
RECORDKEEPING AND REPORTING
REPORTED
1. OCCURRENCES THAT MUST BE
PERMITTEES SHALL REPORT THE FOLLOWING OCCURRENCES:
(A) VISIBLE SEDIMENT DEPOSITION IN A STREAM OR WETLAND
(B) OIL SPILLS IF:
• THEY ARE 25 GALLONS OR MORE,
• THEY ARE LESS THAN 25 GALLONS BUT CANNOT BE CLEANED UP WITHIN 24 HOURS,
• THEY CAUSE SHEET ON WATERS (REGARDLESS OF VOLUME), OR
• THEY ARE WITHIN 100 FEET OF SURFACE WATERS (REGARDLESS OF VOLUME).
(C) RELEASES OF HAZARDOUS SUBSTANCES IN EXCESS OF REPORTABLE QUANTITIES UNDER SECTION 311
OF THE CLEAN WATER ACT (REF: 40 CFR 110.3 AND 40 CFR 117.3) OR SECTION 102 OF CERCLA (REF: 40
CFR 302.4) OR G.S. 143-215.85.
(D) ANTICIPATED BYPASSES AND UNANTICIPATED BYPASS
(E) NONCOMPLIANCE WITH THE CONDITIONS OF THIS PERMIT THAT MAY ENDANGER HEALTH OR THE
ENVIRONMENT.
2. REPORTING TIMEFRAMES AND OTHER REQUIREMENTS
AFTER A PERMITTEE BECOMES AWARE OF AN OCCURRENCE THAT MUST BE REPORTED, HE SHALL CONTACT
THE APPROPRIATE DIVISION REGIONAL OFFICE WITHIN THE TIMEFRAMES AND IN ACCORDANCE WITH THE
OTHER REQUIREMENTS LISTED BELOW. OCCURRENCES OUTSIDE NORMAL BUSINESS HOURS MAY ALSO BE
REPORTED TO THE DEPARTMENT'S ENVIRONMENTAL EMERGENCY CENTER PERSONNEL AT [phone].
OCCURENCE
REPORTING TIMEFRAME (AFTER DISCOVERY) AND OTHER REQUIREMENTS
(A) VISIBLE SEDIMENT
DEPOSITION IN A STREAM OR
WETLAND
• WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
• WITHIN 7 CALENDAR DAYS, A REPORT THAT CONTAINS A
DESCRIPTION OF THE SEDIMENT AND ACTIONS TAKEN TO ADDRESS
THE CAUSE OF THE DEPOSITION. DIVISION STAFF MAY WAIVE THE
REQUIREMENT FOR A WRITTEN REPORT ON A CASE -BY -CASE BASIS.
• IF THE STREAM IS NAMED ON THE NC 303(D) LIST AS IMPAIRED FOR
SEDIMENT -RELATED CAUSES, THE PERMITTEE MAY BE REQUIRED TO
PERFORM ADDITIONAL MONITORING, INSPECTIONS OR APPLY MORE
STRINGENT PRACTICES IF STAFF DETERMINE THAT ADDITIONAL
REQUIREMENTS ARE NEEDED TO ASSURE COMPLIANCE WITH THE
FEDERAL OR STATE IMPAIRED -WATERS CONDITIONS.
(B) OIL SPILLS AND RELEASE OF
HAZARDOUS SUBSTANCES
PER ITEM 1(B)-(C) ABOVE
• WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION. THE
NOTIFICATION SHALL INCLUDE INFORMATION ABOUT THE DATE, TIME,
NATURE, VOLUME AND LOCATION OF THE SPILL OR RELEASE.
(C) ANTICIPATED BYPASSES [40
CFR 122.41(M)(3)]
• A REPORT AT LEAST TEN DAYS BEFORE THE DATE OF THE BYPASS,
IF POSSIBLE. THE REPORT SHALL INCLUDE AN EVALUATION OF THE
ANTICIPATED QUALITY AND EFFECT OF THE BYPASS.
(D) UNANTICIPATED BYPASSES
[40 CFR 122.41(M)(3)]
• WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
• WITHIN 7 CALENDAR DAYS, A REPORT THAT INCLUDES AN
EVALUATION OF THE QUALITY AND EFFECT OF THE BYPASS.
(E) NONCOMPLIANCE WITH THE
CONDITIONS OF THIS PERMIT
THAT MAY ENDANGER
HEALTH OR THE
ENVIRONMENT [40 CFR
122.41(L)(7)]
• WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
• WITHIN 7 CALENDAR DAYS, A REPORT THAT CONTAINS A
DESCRIPTION OF THE NONCOMPLIANCE, AND ITS CAUSES; THE
PERIOD OF NONCOMPLIANCE, INCLUDING EXACT DATES AND TIMES,
AND IF THE NONCOMPLIANCE HAS NOT BEEN CORRECTED, THE
ANTICIPATED TIME NONCOMPLIANCE IS EXPECTED TO CONTINUE;
AND STEPS TAKEN OR PLANNED TO REDUCE, ELIMINATE, AND
PREVENT REOCCURRENCE OF THE NONCOMPLIANCE. [40 CFR
122.41(L)(6).
• DIVISION STAFF MAY WAIVE THE REQUIREMENT FOR A WRITTEN
REPORT ON A CASE -BY -CASE BASIS.
PROJECT
ENGINEER:
D. C. HOPKINS
DESIGNED BY: C. WILSON
DRAWN BY: C. WILSON
CHECKED BY: M. SANTOWASSO
REV
ISSUED FOR
DATE
BY
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
0
1/2"
1"
90% DESIGN REVIEW
DO NOT USE FOR CONSTRUCTION
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO. : C-0381
DEPARTMENT OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION
IMPROVEMENTS
GENERAL
CIVIL
SELF -INSPECTION RECORDKEEPING
AND REPORTING
DATE:
MARCH 2021
HAZEN NO.:
31306-001
CONTRACT NO.:
1
DRAWING
NUMBER:
C103

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PLOT DATE: 4/8/2021
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TEMP
LAYDOWN/
STOCKPILE
AREA
LAYDOWN PLAN
SEE DWG C106
/,
\•
PLAN
SCALE: 1" = 100'
\\
10' NO -BUILD ` r
SETBACK II
TBM - GS
N: 873738.40
E:2050010.04
EL=350.73
1'
1
1
50, NEUSE
BUFFER
250' RESERVOIR
BUFFER
LAKE MICHIE
RESERVOIR
EMERGENCY SPILLWAY
TBM - SM1
N: 873939.32
E:2050425.42
EL=350.85
NOW OR FORMERLY
CITY OF DURHAM
LAK7 "IICHIE
DREDGING PLAN
SEE DWG C107
TBM - SPK
N: 873662.15
E:2049852.09
EL=395.89
NOW OR FORMERLY
CITY OF DURHAM
DB 1854 PG 661
BM 129 PG 198
PIN: 0847-03-84-8790
II
II
II
II
II
II
�I
ENTRANCE ROAD (LAKE
MICHIE DAM ROAD)
1
1
II
II
II
11
11
11
11
FEMA FLOODPLAIN
SEE NOTE 6
II
II
1'
NOW OR FORMERLY
CITY OF DURHAM
DB 1784 PG 388
BM 128 PG 153
PIN: 0847-03-92-4195
RAW WATER PIPE LINE
SEE DWG C108
,/1
PUMP
\ HOUS
\ I
PUMP STATION PLAN
SEE DWG C106
LIMITS OF DISTURBANCE, TYP
PLAN
SCALE: 1" = 110'
r
1/
1/
//
//
EDGE OF WATER
00
TBM - SPK
N: 873349.37
E:2050257.82
EL=282.99
TBM - SPK
N: 873281.87
E:2050457.17
EL=278.57
•
\\ \
1\ 1\ \0 \\
\ \
DREDGING PLAN
SEE DWG C107
/'
i
//
//
//
//
®i
i•••••
- io
FEMA 1% ACF FUTURE CONDITIONS
SEE NOTE 6
FEMA 1% ACF
SEE NOTE 6
\
DREDGING PLAN
SEE DWG C107
DURHAM POLICE PF
(SHOOTING RANGE)
SEE DREDGING PLAN, C107
FEMA CROSS SECTIONS, TYP
SEE NOTE 6
ENTRANCE ROAD (LAKE MICHIE DAM ROAD)
/ / / /
(
278.0
TEMPORARY LAYDOWN AREA
LOCATED APPROXIMATELY 4,500'
SOUTH ON LAKE MICHIE DAM
ROAD. SEE PLAN VIEW, LEFT.
NOW OR FORMERLY
CITY OF DURHAM
DB 129 PG 556 (NOT FOUND)
BM 5B PG 171
PIN: 0857-03-03-6386
LIMITS OF DISTURBANCE: 3.5 AC
NOTES:
1. DATUM INFORMATION:
1.1. HORIZONTAL DATUM: NAD83
1.2. VERTICAL DATUM: NAVD88
2. SURVEYS PERFORMED BY:
2.1. COOPER AND ASSOCIATES
800 PINNER WEALD WAY, SUITE 201
CARY NC 27513
[phone]
9/25/2020
2.2. CH ENGINEERING
3220 GLEN ROYAL ROAD
RALEIGH, NC 27617
[phone]
3/10/2016 - 7/25/2016
2.3. COOPER AND ASSOCIATES
800 PINNER WEALD WAY, SUITE 201
CARY NC 27513
[phone]
4/17/2015
3. ALL DISTANCES ARE HORIZONTAL GROUND
DISTANCES UNLESS OTHERWISE NOTED.
4. THE ROCKY AREA NEAR THE TOE OF THE DAM AND
SLOPE AREA SOUTHWEST OF THE PUMP HOUSE
EXCEED THE TOLERANCE FOR 1' CONTOURS DUE
TO THE IRREGULARITY OF THE ROCKS. THE
CONTOURS IN THESE AREAS SHOULD BE
CONSIDERED APPROXIMATE.
5. FEMA FLOODPLAIN INFORMATION OBTAINED FROM:
FLOOD SOURCE: FLAT RIVER
MAP NUMBER: 3720085700K
PANEL EFFECTIVE DATE: 10/19/2018
5.1. BFE RANGE (LAYDOWN AREA):
1% ACF: 274.0'
1% ACF FC: 274.8'
5.2. BFE RANGE (D.S. OF DAM):
1% ACF: 278.0' - 278.2'
1% ACF FC: 279.0' - 279.2'
5.3. BFE (U.S. OF DAM; LAKE MICHIE):
1% ACF: 346.6'
1% ACF FC: 347.2'
6. EXISTING BUILDINGS ON SITE:
• CARETAKER'S HOUSE:
APPROX 1540 SF
1 STORY
• RAW WATER PUMP STATION:
APPROX 7700 SF
1 STORY
DREDGING PLA
SEE DWG C107
RWPS PLAN
SEE DWG C106
RW PIPELINE PLAN
SEE DWG C108
PROPERTY
LINE, TYP
LAYDOWN
SEE DWG C106
II
KEY PLAN
SCALE: 1" = 1000'
PROJECT
ENGINEER:
D. C. HOPKINS
DESIGNED BY:
C. WILSON
DRAWN BY:
C. WILSON
CHECKED BY:
M. SANTOWASSO
REV
ISSUED FOR
DATE
BY
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
0
1/2"
1"
90% DESIGN REVIEW
DO NOT USE FOR CONSTRUCTION
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO. : C-0381
DEPARTMENT OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION
IMPROVEMENTS
GENERAL
CIVIL
OVERALL SITE AND KEY PLAN
DATE:
MARCH 2021
HAZEN NO.:
31306-001
CONTRACT NO.:
1
DRAWING
NUMBER:
C 104

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PLOT DATE: 4/8/2021
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LIMITS OF DISTURBANCE: 3.5 ACRES
W`M \ SEEDREDGNGDWG C107 PLAFOR� ��
LAKE MICHIE
LIMITS OF DI
TREE PROT
C-31-0405
ION FE
SILT FENCE, TYP
C-31-0400
PLAN
SCALE: 1" = 30'
o
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STEEL CHLORINE SHED
STRUCTURE AND
CONCRETE PAD
\�
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(TOPO-DELINEATED)
ISEE NOTE 6, DWG C104
SEE NOTE 3 ` J \ \ \ \ \
\
SUPER SILT FENCE, TYP
C-31-0401
CONTRACTOR WORK
AREA / LAYDOWN AREA
TEMPORARY GRAVEL
MATCH LINE, SEE RIGHT
\
EMPORARY GRAVEL
/ CONSTRUCTION ENTRANCE/EXIT
//i
C-31-0490
NOTES:
1. SEE DWGS C101, C102, AND C103 FOR EROSION CONTROL
NOTES AND SEQUENCE.
2. SEE DWG C104 FOR SURVEY NOTES.
3. CONTRACTOR SHALL AVOID INTERFERENCE WITH
OVERHEAD ELECTRIC LINES DURING CONSTRUCTION AND
INSTALL WARNING SIGNS WITHIN 50' OF LINES. ANY DAMAGE
TO LINES SHALL BE REPAIRED AT CONTRACTOR'S EXPENSE.
LIMITS OF
DISTURBANCE, TYP
/ TREE PROTECTION
FENCE, TYP
C-31-0405
/ / /
SILT FENCE, TYP
C-31-0400
\ \ MATCH LINE, SEE LEFT
TEMP
LAYDOWN/
STOCKPILE
AREA
CLEAR AND GRUB
LAYDOWN/STOCKPILE
AREA (APPROX 1.5 AC)
TEMP LAYDOWN/STOCKPILE AREA
SCALE: 1" = 30'
\ \
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1
I \ I
\ \ \ TREE/PROTE TION FEf E,
1
I � I/
IMIT OF 1115 I URBANC�YP
1 \ \ \ \ \ \ S LT FENbE,
1 1 1\\\ 1 1+
I )l I
C-31-0405
C-31-0400
' ,
/ I T
/ /
I / //, ///�//�/1/ lli,/,
PLAN
SCALE: 1" = 30'
TEMPORARY GRAVEL
CONSTRUCTION
ENTRANCE/EXIT
C-31-0490
LAKE MICHIE
DAM RD
LAKE MICHIE DAM
RD RIGHT-OF-WAY
FEMA 1% ACF FC (PER
FEMA DATA)
SEE NOTE 6, DWG C104
PROJECT
ENGINEER:
D. C. HOPKINS
DESIGNED BY:
C. WILSON
DRAWN BY:
C. WILSON
CHECKED BY:
M. SANTOWASSO
REV
ISSUED FOR
DATE
BY
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
0
1/2"
1"
90% DESIGN REVIEW
DO NOT USE FOR CONSTRUCTION
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO. : C-0381
DEPARTMENT OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION
IMPROVEMENTS
LAKE MICHIE PUMP STATION
CIVIL
EXISTING CONDITIONS AND EROSION
CONTROL PLAN
DATE:
MARCH 2021
HAZEN NO.:
31306-001
CONTRACT NO.:
1
DRAWING
NUMBER:
C105

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PLOT DATE: 4/8/2021
REV
APPROXIMATE LOCATION
OF SEPTIC TANK AND
DISTRIBUTION BOX
SEE NOTE 3, DWG M010 ,
CP
REPLANT WITH RIPARIAN MIX
SEE DWG C101 FOR SEEDING
SCHEDULE AND NOTES
APPROXIMATE LOCATION
OF CONVENTIONAL
SEPTIC SYSTEM FIELD
SEE NOTE 3, DWG M010
ISSUED FOR
DATE
BY
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
90% DESIGN REVIEW
DO NOT USE FOR CONSTRUCTION
0
�\ \\
LIMITS OF DISTURBANCE, TYP
RESTORE GRAVEL ACCESS ROAD TO
EXISTING GRADE AND DIMENSIONS
1/2"
NEW TRANSFORMER
ON EX CONC PAD
SEE ELEC DWGS
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO. : C-0381
/2
/
�\ \;\-c•---
�l \
`\
\ \
1\' L \ \\1
‘\
\\ �\�
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\ \I �} FEMA 1 %ACF FC
(TOPO-DELINEATED) 1 \
\ \ \
SEE NOTE 6, DWG C104
ELEC GENERATOR
SEE NOTE 5
APPROXIMATE LOCATION
OF WELL HOUSE
SEE NOTE 2, DWG M010
CONTRACTOR WORK AREA /
LAYDOWN AREA
SEE NOTE 2
REPLACE FENCE IN
SAME LOCATION AS
EXISTING
loNN
NOTES:
1. CONTRACTOR SHALL LAY A NEW GRAVEL ACCESS ROAD AS
SHOWN UPON COMPLETION OF ALL CONSTRUCTION
ACTIVITIES.
2. CONTRACTOR SHALL RESTORE WORK AREA/LAYDOWN
AREA TO ORIGINAL CONDITION AT COMPLETION OF
PROJECT, INCLUDING ANY GRADING, SEEDING,OR OTHER
REPAIRS AS MAY BE NECESSARY.
3. INSTALL NEW FENCE TO REPLACE EXTENTS OF EXISTING
FENCE
7
7
/ 7
4. CONTRACTOR SHALL RESTORE LAKE MICHIE DAM ROAD
(GRAVEL ROAD) TO EXISTING OR BETTER CONDITION PRIOR
TO PROJECT CLOSE-OUT.
5. SEE DWG M010 FOR YARD PIPING. SEE ELEC DWGS FOR
LOCATION OF ELEC DB.
\ \ \ \ LAKE MICHIE DAM RD
LIMITS OF \ \ \ \ \
/ 7DISTURBANCETYP
\ \ \
)
\ \ MATCH LINE, SEE LEFT
\\\
\ I \
/ / l // /
\ \ \\\
I MIT OF DI UKIANCE, TYP
I �\ \ \ / I I RESTORE GRAVEL AC
//•
CESS RO/��
I
I C-32-0553
/ I11 '
I 11
1 1 1 1 JIiI l l � _
1 / 11// // /lll/ I 1
l ll/
/ Il /
,/�/// //,
REPLANT
LAYDOWN/STAGING AREA
WITH RIPARIAN MIX
SEE DWG C101 FOR SEEDING
SCHEDULE AND NOTES
SEE NOTE 2
LAKEMICHIEDAM \.
W \ RD RIGHT-OF-WAY
\ i FEMA 1 % ACF FC (PER \
i
; FEMA DATA) /
I \ \ I SEE NOTE 6, DWG C104
/ I ) ) /
I
/ / / (
X
• ) r
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( �` \ / \ /
I I 1 I \ f.. 77
/\ *//r
/ / / / /
///�•7 /
/ / / / / 7 Iii. (
j / 06 J ///7 r - j
/ / / / /
/ / i /
/ / /. /
/ / /.. //
/ 7////
/ /• •/ /
/./ /
./ /
TEMP LAYDOWN/STOCKPILE AREA
SCALE: 1" = 30'
DEPARTMENT OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION
IMPROVEMENTS
PLAN
SCALE: 1" = 30'
LAKE MICHIE PUMP STATION
CIVIL
SITE PLAN
DATE:
HAZEN NO.:
CONTRACT NO.:
DRAWING
NUMBER:
l
7
MARCH 2021
31306-001
1
C106

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BY: CDWILSON
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PLOT DATE: 4/8/2021
APPROX EDGE OF WATER, TYP
•
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•
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s • •• f 0
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o •
• o
NOTES:
f
1610 •
o
••
••
1. CONTRACTOR SHALL REMOVE DREDGING MATERIALS IN
THE IDENTIFIED LOCATIONS SHOWN ON THE PLANT.
VOLUME ESTIMATES FOR THESE MATERIALS ARE
PROVIDED IN SPECIFICATION SECTION 01 20 00.
2. DREDGED MATERIAL SHALL BE REMOVED FROM THE LAKE,
DRIED IN THE DEWATERING AREA SHOWN ON THIS DWG,
AND DISPOSED OF OFF -SITE AT A PROPERLY PERMITTED
FACILITY. CONTRACTOR SHALL MEET TESTING
PARAMETERS AND FREQUENCY REQUIREMENTS OF THE
DISPOSAL LOCATIONS BEFORE MATERIAL IS ACCEPTED.
SEE SPECIFICATION 35 01 50.51 FOR MORE DETAIL ON
TESTING REQUIREMENTS.
3. REFER TO SPECIFICATION SECTIONS 35 01 50.51 AND 35
53 13 FOR ADDITIONAL DETAIL ON DREDGING ACTIVITIES.
LAKE MICHIE \
DREDGING AREA
SEE BELOW, LEFT
CREST ELEV: 351.08
LAKE MICHIE DAM
PUMP STATION ACCESS ROAD
— SPILLWAY
0
CONTRACTOR ACCESS TO LAKE
SEE NOTE 5
OVERALL DREDGING AND STAGING PLAN
SCALE: 1" = 100'
4. UPON COMPLETIONG OF DREDGING AND DEWATERING
ACTIVITIES, DEWATERING AREA SHALL BE RESOTRED RO
EXISTING GRADE AND CONDITION, AND PLANTED WITH
THE RIPARIAN MIX. SEE THE SEEDING SCHEDULE AND
NOTES ON DWG C101.
5. ACCESS TO DURHAM POLICE PROPERTY SHALL BE
GRANTED FOR LAKE ACCESS FOR INTAKE WORK AND
DEWATERING AREA. EXISTING GRAVEL PATHWAY SHALL
BE USED FOR ACCESS AND SHALL BE RESTORED TO
EXISTING GRADE UPON COMPLETION OF WORK.
CONTRACTOR SHALL COORDINATE WITH CITY OF DURHAM
AND DURHAM POLICE DEPARTMENT PRIOR TO INITIAL
ACCESS TO SITE.
ELEVATOR
DREDGING AREA
SCALE: 1" = 10'
DURHAM POLICE
SHOOTING RANGE \
MATERIAL SHALL BE
REMOVED FROM
INTAKE FOOTER
DURHAM POLICE
PROPERTY ACCESS ROAD
SEE NOTE 5
SEE PROFILE VIEW, UPPER
RIGHT, THIS SHEET, FOR
DREDGING EXTENTS
1
INTAKE
PUMP STATION
DEWATERING AREA
SEE BELOW, RIGHT
PROPERTY LINE
"0t,
•4
to
SF�\^
N
\ �\
dS
TEMPORARY GRAVEL
CONSTRUCTION
ENTRANCE/EXIT
C-31-0490
SILT FENCE, TYP
C-31-0400
dS dS
dS
350
325
300
275
0+00
HS
390
NORMAL
v POOL
LAKE MICHIE
ELEV:340.08—\
1-
z
EX
GRADE
0
ELEV:288.08
PROP GRADE
-
25
a
II
ELEV:283.00
0+25
PROFILE
HORIZONTAL SCALE: 1" = 10'
VERTICAL SCALE: 1"=10'
ACCESS ROAD —N
HS
DEWATERING AREA
(CONCEPT; SURVEY NEEDED)
SEE NOTES 2, 4
u94, %
\ \ \ \ \\ \ \\ -390
\ N
� � \ \ \ \ \)
�o. \ \ \ NSF V/ \
\ \ \ \ \ \ \ \ N N \ ��
\ \ \\ \ \ \ N \
N
DEWATERING AREA
SCALE: 1" = 20'
350
325
300
275
0+50
1
/
PROJECT
ENGINEER:
D. C. HOPKINS
DESIGNED BY:
C. WILSON
DRAWN BY:
C. WILSON
CHECKED BY: M. SANTOWASSO
REV
ISSUED FOR
DATE
BY
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
0
1/2"
1"
90% DESIGN REVIEW
DO NOT USE FOR CONSTRUCTION
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO. : C-0381
DEPARTMENT OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION
IMPROVEMENTS
LAKE MICHIE INTAKE DREDGING
CIVIL
DREDGING PLAN
DATE:
MARCH 2021
HAZEN NO.:
31306-001
CONTRACT NO.:
1
DRAWING
NUMBER:
C107

NOTES:
immmmmmtoZ -
LIMITS OF DISTURBANCE, TYP
20' X 20' CENTERED ON STA
31+00 ON EACH LINE
(FIELD -LOCATE). SEE NOTE 2
PLAN
SCALE: 1" = 200'
a_
LL
1. SEE DWG M012 FOR SOURCE IF EXISTING
INFORMATION ON THIS PLAN.
2. CONTRACTOR SHALL FIELD -LOCATE EACH PIPE.
SILT FENCE SHALL BE PROVIDED AROUND THE
PERIMETER OF THE LIMITS OF DISTURBANCE AT
EACH LOCATION, DETAIL
C-31-0400
3. SEE DWG M011 FOR YARD PIPING PROPOSED IN
THIS AREA.
4. SEE DWGS C101, C102, AND C103 FOR EROSION
CONTROL NOTES AND SEQUENCE.
5. CONTRACTOR SHALL AVOID INTERFERENCE WITH
OVERHEAD ELECTRIC LINES DURING
CONSTRUCTION AND INSTALL WARNING SIGNS
WITHIN 50' OF LINES. ANY DAMAGE TO LINES SHALL
BE REPAIRED AT CONTRACTOR'S EXPENSE.
LAKE MICHIE RAW WATER
PUMPING STATION
LIMITS OF DISTURBANCE, TYP
20' X 20' CENTERED ON STA
8+00 ON EACH LINE
(FIELD -LOCATE). SEE NOTE 2
PROJECT
ENGINEER:
D. C. HOPKINS
DESIGNED BY:
C. WILSON
DRAWN BY:
C. WILSON
CHECKED BY: M. SANTOWASSO
90% DESIGN REVIEW
DO NOT USE FOR CONSTRUCTION
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO. : C-0381
DEPARTMENT OF WATER MANAGEMENT
CITY OF DURHAM, NORTH CAROLINA
LAKE MICHIE AND LITTLE RIVER
RAW WATER PUMP STATION
IMPROVEMENTS
LAKE MICHIE RAW WATER PIPE LINE
CIVIL
EROSION CONTROL AND SITE PLAN
DATE:
MARCH 2021
HAZEN NO.:
31306-001
CONTRACT NO.:
1
DRAWING
NUMBER:
REV
ISSUED FOR
DATE
BY
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
0
1/2"
1"
C108

Yard Piping Plan
200
Permanent Impact to Lake Michie
0.12 acre - maintenance dredging
Rehabilitation of Raw Water Intake
100
0
200 Feet
1 inch = 200 feet
W+E
Existing Raw Water Intake Pump Station
Hazen
Waters of the United States Impacts Map
Lake Michie Dam and
Raw Water Pump Station Improvements
Falls Lake Watershed
City of Durham, North Carolina

Temporary Impact to
19 SF of Zone 1 and
492 SF of Zone 2
Existing Use - Lake Access
Lake Michie
Buffer Zone 1
Buffer Zone 21
Temporary Impact to 418 SF
Existing Use - Excavation
Legend
Limits of Disturbance
Riparian Buffer Limits
Buffer Zone 1
Buffer Zone 2
Lake Michie Dam
Existing Raw Water Intake Pump Station
Board
200
100
0
200 Feet
1 inch = 200 feet
W+E
Hazen
Riparian Buffer Impacts Map
Lake Michie Dam and
Raw Water Pump Station Improvements
Falls Lake Watershed
City of Durham, North Carolina

Lake Michie Dam and Raw Water Pump Station Improvements — diffuse flow discussion
Diffuse flow will be maintained throughout the limits of disturbance and the riparian buffer through the
use of permanent seeding and planting of native and riparian vegetation, and maintenance of existing
drainage patterns throughout the buffered areas. No grading or permanent stormwater measures will
be put in place to channelize or concentrate stormwater runoff from the site. The erosion and sediment
control measures for the project were designed to meet NC DEQ requirements, including the NC Erosion
and Sedimentation Control Planning and Design Manual and the NC Construction General Permit
NCG01, as well as Title 15A, Chapter 4 of the NC Administrative Code. The proposed project will not
create concentrated stormwater flow through the buffer.

Description of Construction Activities
The work will require the construction of a cofferdam so that portions of the demolition work and
installation of new work can best be accomplished in the dry. The cofferdam may be attached to the
existing Dam/Pump Station Structure or installed in front of the Dam/Pump Station. Geotechnical
borings will be performed for the project to determine the depth to bedrock or boulders of sufficient
size to necessitate fracturing. While blasting will not be allowed for the project, vibratory impact
hammers, chipping hammers, and other similar ancillary equipment may be necessary to install a sheet
pile wall system if that is the preferred means and method of the contractor. If the cofferdam is
attached to the side of the Dam/Pump Station, smaller impact hammer drills, chippers, and torque
wrenches may be necessary to attach the cofferdam to the existing wall. In either case, the smaller
impact equipment is anticipated to be utilized to remove existing gates, stems, screens, stop logs, and
miscellaneous attachments that are to be abandoned as well as the installation of new facility
equipment and improvements for the project. This work will be confined to the minimum space needed
to accommodate the installation of the cofferdam and accomplish the work that needs to be performed
in the dry.

1/19/2021 IPaC: Explore Location resources
IPaC
U.S. Fish & Wildlife Service
IPaC resource list
This report is an automatically generated list of species and other resources such as critical habitat
(collectively referred to as trust resources) under the U.S. Fish and Wildlife Service's (USFWS)
jurisdiction that are known or expected to be on or near the project area referenced below. The list
may also include trust resources that occur outside of the project area, but that could potentially be
directly or indirectly affected by activities in the project area. However, determining the likelihood
and extent of effects a project may have on trust resources typically requires gathering additional
site -specific (e.g., vegetation/species surveys) and project -specific (e.g., magnitude and timing of
proposed activities) information.
Below is a summary of the project information you provided and contact information for the USFWS
office(s) with jurisdiction in the defined project area. Please read the introduction to each section
that follows (Endangered Species, Migratory Birds, USFWS Facilities, and NWI Wetlands) for
additional information applicable to the trust resources addressed in that section.
Location
Durham County, North Carolina
\4,
Local office
Go
�sv�
csc)
Raleigh Ecological Services Field Office
k. [phone]
fi [phone]
MAILING ADDRESS
Post Office Box 33726
Raleigh, NC 27636-3726
PHYSICAL ADDRESS
551 Pylon Drive, Suite F
https://ecos.fws.gov/ipac/location/IGHOPW4RNVGHJGAQ6JT3ES5U DM/resources
1/10

1/19/2021 IPaC: Explore Location resources
Raleigh, NC 27606-1487
•cb-s\c'
Gios"�
,� FOB
�O
https://ecos.fws.gov/ipac/location/IGHOPW4RNVGHJGAQ6JT3ES5U DM/resources
2/10

1/19/2021 IPaC: Explore Location resources
Endangered species
This resource list is for informational purposes only and does not constitute an analysis of
project level impacts.
The primary information used to generate this list is the known or expected range of each species.
Additional areas of influence (AOI) for species are also considered. An AOI includes areas outside of
the species range if the species could be indirectly affected by activities in that area (e.g., placing a
dam upstream of a fish population even if that fish does not occur at the dam site, may indirectly
impact the species by reducing or eliminating water flow downstream). Because species can move,
and site conditions can change, the species on this list are not guaranteed to be found on or near
the project area. To fully determine any potential effects to species, additional site -specific and
project -specific information is often required.
Section 7 of the Endangered Species Act requires Federal agencies to "request of the Secretary
information whether any species which is listed or proposed to be listed may be present in the area
of such proposed action" for any project that is conducted, permitted, funded, or licensed by any
Federal agency. A letter from the local office and a species list which fulfills this requirement can
only be obtained by requesting an official species list from either the Regulatory Review section in
IPaC (see directions below) or from the local field office directly.
For project evaluations that require USFWS concurrence/review, please return to the IPaC website
and request an official species list by doing the following:
1. Draw the project location and click CONTINUE.
2. Click DEFINE PROJECT.
3. Login (if directed to do so).
4. Provide a name and description for your project.
5. Click REQUEST SPECIES LIST.
Listed species and their critical habitats are managed by the Ecological Services Program of the U.S.
Fish and Wildlife Service (USFWS) and the fisheries division of the National Oceanic and Atmospheric
Administration (NOAA Fisheries ).
Species and critical habitats under the sole responsibility of NOAA Fisheries are not shown on this
list. Please contact NOAA Fisheries for species under their jurisdiction.
1. Species listed under the Endangered Species Act are threatened or endangered; IPaC also shows
species that are candidates, or proposed, for listing. See the listing status page for more
information. IPaC only shows species that are regulated by USFWS (see FAQ).
2. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the
National Oceanic and Atmospheric Administration within the Department of Commerce.
The following species are potentially affected by activities in this location:
Amphibians
NAM E
STATUS
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Neuse River Waterdog Necturus lewisi
Wherever found
There is proposed critical habitat for this species. The location of the
critical habitat is not available.
https://ecos.fws.gov/ecp/species/6772
Fishes
Proposed Threatened
NAME STATUS
Carolina Madtom Noturus furiosus
Wherever found
There is proposed critical habitat for this species. The location of the
critical habitat is not available.
https://ecos.fws.gov/ecp/species/528
Clams
NAME
Atlantic Pigtoe Fusconaia masoni
Wherever found
There is proposed critical habitat for this species. The location of th
critical habitat is not available.
https://ecos.fws.gov/ecp/species/5164
Flowering Plants.
NAME
Michaux's Sumac Rhus michauxii
Wherever found
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/5217
Smooth Coneflower Echinacea laevigata
Wherever found
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/3473
Critical habitats
Proposed Endangered
STATUS 14411,'
Proposed Threatened
STATUS
Endangered
Endangered
Potential effects to critical habitat(s) in this location must be analyzed along with the endangered
species themselves.
THERE ARE NO CRITICAL HABITATS AT THIS LOCATION.
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Migratory birds
Certain birds are protected under the Migratory Bird Treaty Act' and the Bald and Golden Eagle
Protection Act2.
Any person or organization who plans or conducts activities that may result in impacts to migratory
birds, eagles, and their habitats should follow appropriate regulations and consider implementing
appropriate conservation measures, as described below.
1. The Migratory Birds Treaty Act of 1918.
2. The Bald and Golden Eagle Protection Act of 1940.
Additional information can be found using the following links:
• Birds of Conservation Concern http://www.fws.gov/birds/management/managed-species/1
birds-of-conservation-concern.php
• Measures for avoiding and minimizing impacts to birds
http://www.fws.gov/birds/management/project-assessment-tools-and-gui n\O
conservation-measures.php
• Nationwide conservation measures for birds jic
http://www.fws.gov/migratorybirds/pdf/management/nationwidestandardconservationmeasures.pdf
The birds listed below are birds of particular concern either because they occur on the USFWS Birds
of Conservation Concern (BCC) list or warrant special attention in your project location. To learn
more about the levels of concern for birds on your list and how this list is generated, see the FAQ
below. This is not a list of every bird you may find in this location, nor a guarantee that every bird on
this list will be found in your project area. To see exact locations of where birders and the general
public have sighted birds in and around your project area, visit the E-bird data mapping tool (Tip:
enter your location, desired date range and a species on your list). For projects that occur off the
Atlantic Coast, additional maps and models detailing the relative occurrence and abundance of bird
species on your list are available. Links to additional information about Atlantic Coast birds, and
other important information about your migratory bird list, including how to properly interpret and
use your migratory bird report, can be found below.
For guidance on when to schedule activities or implement avoidance and minimization measures to
reduce impacts to migratory birds on your list, click on the PROBABILITY OF PRESENCE SUMMARY at
the top of your list to see when these birds are most likely to be present and breeding in your
project area.
NAME BREEDING SEASON (IFA
BREEDING SEASON IS INDICATED
FORA BIRD ON YOUR LIST, THE
BIRD MAY BREED IN YOUR
PROJECT AREA SOMETIME WITHIN
THE TIMEFRAME SPECIFIED,
WHICH IS A VERY LIBERAL
ESTIMATE OF THE DATES INSIDE
WHICH THE BIRD BREEDS
ACROSS ITS ENTIRE RANGE.
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"BREEDS ELSEWHERE" INDICATES
THAT THE BIRD DOES NOT LIKELY
Bald Eagle Haliaeetus leucocephalus
This is not a Bird of Conservation Concern (BCC) in this area, but
warrants attention because of the Eagle Act or for potential
susceptibilities in offshore areas from certain types of development
or activities.
https://ecos.fws.gov/ecp/species/1626
Blue -winged Warbler Vermivora pinus
This is a Bird of Conservation Concern (BCC) only in particular Bird
Conservation Regions (BCRs) in the continental USA
Prairie Warbler Dendroica discolor
This is a Bird of Conservation Concern (BCC) throughout its range in
the continental USA and Alaska.
Prothonotary Warbler Protonotaria citrea
This is a Bird of Conservation Concern (BCC) throughout its range in
the continental USA and Alaska.
Red-headed Woodpecker Melanerpes erythrocephalu
This is a Bird of Conservation Concern (BCC) throughout its range in
the continental USA and Alaska.
Rusty Blackbird Euphagus carolinus
This is a Bird of Conservation Concern (BCC) throughout its range in
the continental USA and Alaska.
Wood Thrush Hylocichla mustelina
This is a Bird of Conservation Concern (BCC) throughout its range in
the continental USA and Alaska.
Probability of Presence Summary
BREED IN YOUR PROJECT AREA.)
Breeds Sep 1 to Jul 31
Breeds May 1 to Jun 30
106 Breeds May 1 to Jul 31
x
40
Breeds Apr 1 to Jul 31
1
Breeds May 10 to Sep 10
Breeds elsewhere
Breeds May 10 to Aug 31
The graphs below provide our best understanding of when birds of concern are most likely to be
present in your project area. This information can be used to tailor and schedule your project
activities to avoid or minimize impacts to birds. Please make sure you read and understand the FAQ
"Proper Interpretation and Use of Your Migratory Bird Report" before using or attempting to
interpret this report.
Probability of Presence ( )
Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your
project overlaps during a particular week of the year. (A year is represented as 12 4-week months.)
A taller bar indicates a higher probability of species presence. The survey effort (see below) can be
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used to establish a level of confidence in the presence score. One can have higher confidence in the
presence score if the corresponding survey effort is also high.
How is the probability of presence score calculated? The calculation is done in three steps:
1. The probability of presence for each week is calculated as the number of survey events in the
week where the species was detected divided by the total number of survey events for that
week. For example, if in week 12 there were 20 survey events and the Spotted Towhee was
found in 5 of them, the probability of presence of the Spotted Towhee in week 12 is 0.25.
2. To properly present the pattern of presence across the year, the relative probability of presence
is calculated. This is the probability of presence divided by the maximum probability of presence
across all weeks. For example, imagine the probability of presence in week 20 for the Spotted
Towhee is 0.05, and that the probability of presence at week 12 (0.25) is the maximum of any
week of the year. The relative probability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is
0.05/0.25 = 0.2.
3. The relative probability of presence calculated in the previous step undergoes a statistical-:
conversion so that all possible values fall between 0 and 10, inclusive. This is the probability of
presence score.
To see a bar's probability of presence score, simply hover your mouse cursor over the bar.
Breeding Season ( )
Yellow bars denote a very liberal estimate of the time -frame inside which the bird breeds across its
entire range. If there are no yellow bars shown for a bird, it does not breed in your project area.
Survey Effort (I)
Vertical black lines superimposed on probability of presence bars indicate the number of surveys
performed for that species in the 10km grid cell(s) your project area overlaps. The number of
surveys is expressed as a range, for example, 33 to 64 surveys.
To see a bar's survey effort range, simply hover your mouse cursor over the bar.
No Data()
A week is marked as having no data if there were no survey events for that week.
Survey Timeframe
Surveys from only the last 10 years are used in order to ensure delivery of currently relevant
information. The exception to this is areas off the Atlantic coast, where bird returns are based on all
years of available data, since data in these areas is currently much more sparse.
Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory birds.
Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all birds at
any location year round. Implementation of these measures is particularly important when birds are most likely to
occur in the project area. When birds may be breeding in the area, identifying the locations of any active nests and
avoiding their destruction is a very helpful impact minimization measure. To see when birds are most likely to
occur and be breeding in your project area, view the Probability of Presence Summary. Additional measures or
permits may be advisable depending on the type of activity you are conducting and the type of infrastructure or
bird species present on your project site.
What does IPaC use to generate the migratory birds potentially occurring in my specified location?
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The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern (BCC) and other species
that may warrant special attention in your project location.
The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network
,(AKN). The AKN data is based on a growing collection of survey, banding, and citizen science datasets and is
queried and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project
intersects, and that have been identified as warranting special attention because they are a BCC species in that
area, an eagle (Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore
activities or development.
Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not
representative of all birds that may occur in your project area. To get a list of all birds potentially present in your
project area, please visit the AKN Phenology Tool.
What does IPaC use to generate the probability of presence graphs for the migratory birds potentially
occurring in my specified location? 1
The probability of presence graphs associated with your migratory bird list are based on data provided by the
Avian Knowledge Network (AKN). This data is derived from a growing collection of survey, banding r4I citiz1
404
science datasets .
Probability of presence data is continuously being updated as new and better information becomes available. To
learn more about how the probability of presence graphs are produced and how to interpret them, go the
Probability of Presence Summary and then click on the "Tell me about these graphs" link.
How do I know if a bird is breeding, wintering, migrating or present year-round in my project area?
To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or
year-round), you may refer to the following resources: ThiOrnell Lab of Ornithology All About Birds Bird Guide, or
(if you are unsuccessful in locating the bird of interest there), the Cornell Lab of Ornithology Neotropical Birds
guide. If a bird on your migratory bird species list has a breeding season associated with it, if that bird does occur
in your project area, there may be nests present at some point within the timeframe specified. If "Breeds
elsewhere" is indicated, then the bird likely does not breed in your project area.
What are the levels of concern for migratory birds?
Migratory birds delivered through IPaC fall into the following distinct categories of concern:
1. "BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their range
anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands);
2. "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the
continental USA; and
3. "Non -BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of
the Eagle Act requirements (for eagles) or (for non -eagles) potential susceptibilities in offshore areas from
certain types of development or activities (e.g. offshore energy development or longline fishing).
Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to
avoid and minimize impacts to the birds on this list, especially eagles and BCC species of rangewide concern. For
more information on conservation measures you can implement to help avoid and minimize migratory bird
impacts and requirements for eagles, please see the FAQs for these topics.
Details about birds that are potentially affected by offshore projects
For additional details about the relative occurrence and abundance of both individual bird species and groups of
bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal
also offers data and information about other taxa besides birds that may be helpful to you in your project review.
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Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS
Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic
Outer Continental Shelf project webpage.
Bird tracking data can also provide additional details about occurrence and habitat use throughout the year,
including migration. Models relying on survey data may not include this information. For additional information on
marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact Caleb Spiegel or Pam
Loring.
What if I have eagles on my list?
If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the
Eagle Act should such impacts occur.
Proper Interpretation and Use of Your Migratory Bird Report
The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority
concern. To learn more about how your list is generated, and see options for identifying what other birds may be
in your project area, please see the FAQ "What does IPaC use to generate the migratory birds potentially occurring
in my specified location". Please be aware this report provides the "probability of presence" of birds within the 10
km grid cell(s) that overlap your project; not your exact project footprint. On the graphs provided, please also look
carefully at the survey effort (indicated by the black vertical bar) and for the existence of the "no data" indicator (a
red horizontal bar). A high survey effort is the key component. If the survey effort is high, then the probability of
presence score can be viewed as more dependable. In contrast, a low survey effort bar or no data bar means a lack
of data and, therefore, a lack of certainty about presence of the species. This list is not perfect; it is simply a starting
point for identifying what birds of concern have the potential to be in your project area, when they might be there,
and if they might be breeding (which means nests might be present). The list helps you know what to look for to
confirm presence, and helps guide you in knowing when to implement conservation measures to avoid or
minimize potential impacts from your project activities, should presence be confirmed. To learn more about
conservation measures, visit the FAQ "Tell me about conservation measures I can implement to avoid or minimize
impacts to migratory birds" at the bottom of your migratory bird trust resources page.
Facilities SCI.
National Wildlife Refuge lands
Any activity proposed on lands managed by the National Wildlife Refuge system must undergo a
'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to
discuss any questions or concerns.
THERE ARE NO REFUGE LANDS AT THIS LOCATION.
Fish hatcheries
THERE ARE NO FISH HATCHERIES AT THIS LOCATION.
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Wetlands in the National Wetlands Inventory
Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404
of the Clean Water Act, or other State/Federal statutes.
For more information please contact the Regulatory Program of the local U.S. Army Corps of
Engineers District.
THERE ARE NO KNOWN WETLANDS AT THIS LOCATION.
Data limitations
The Service's objective of mapping wetlands and deepwater habitats is to produce reconnaissance level
information on the location, type and size of these resources. The maps are prepared from the analysis of high
altitude imagery. Wetlands are identified based on vegetation, visible hydrology and geography. A margin of error
is inherent in the use of imagery; thus, detailed on -the -ground inspection of any particular site may result in
revision of the wetland boundaries or classification established through image analysis.
The accuracy of image interpretation depends on the quality of the imagery, the experience of the image analysts,
the amount and quality of the collateral data and the amount of ground truth verification work conducted.
Metadata should be consulted to determine the date of the source imagery used and any mapping problems.
Wetlands or other mapped features may have changed since the date of the imagery or field work. There may be
occasional differences in polygon boundaries or classifications between the information depicted on the map and
the actual conditions on site.
Data exclusions
Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial
imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged
aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and nearshore coastal waters.
Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory.
These habitats, because of their depth, go undetected by aerial imagery.
Data precautions
Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a
different manner than that used in this inventory. There is no attempt, in either the design or products of this
inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local government or to establish
the geographical scope of the regulatory programs of government agencies. Persons intending to engage in
activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate federal,
state, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may
affect such activities.
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