20130634 Ver 1_More Info Received_20130905

Strickland, Bev
From: Lucas, Annette
Sent: Thursday, September 05, 2013 11:28 AM
To: Strickland, Bev
Subject: FW: 13 -0634 MacGregor Downs Deck Addition
Attachments: MacGregor O &M Manual.pdf
From: Freeman, Hunter [ma i Ito: HFreemanCa)withersravenel.com]
Sent: Thursday, September 05, 2013 10:34 AM
To: Lucas, Annette; Smith, Cherri L
Subject: MacGregor Downs Deck Addition
Annette — I've attached the signed maintenance agreement for the cistern. Let me know if you need anything else.

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Rainwater Harvesting System
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— The roof area will be maintained to reduce the debris and sediment load to the
system. Excess debris can clog the system and lead to bypass of the design
storm, and reduced reuse volume.
— To ensure proper operation as designed, a licensed Professional Engineer,
Landscape Architect, or other qualified professional will inspect the system
annually.
— The system components will be repaired or replaced whenever they fail to
function properly.
— If the outlet is metered, use must be recorded at a minimum of monthly. These
records shall be kept on site for inspection by DWQ.
The system will be inspected by the owner/ operator at least monthly and within 24
hours after each rain event. Records of operation and maintenance will be kept in a
known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potential problems:
How to remediate the problem:
The entire system
A component of the system is
Make any necessary repairs or replace if
damaged or leaking.
damage is too large for repair.
Water is flowing out of the
Check system for clogging and damage. Repair
overflow pipe during a
as needed so the design volume is stored
design rainfall or smaller
properly without discharging during a design
(usually a 1" or 1.5" rainfall).
storm.
Check that the pump is operating properly and
that the water is actually being used at the
volume designed.
If it is still not operating properly, then consult
an expert.
The captured roof area
Excess debris or sediment is
Remove the debris or sediment as soon as
resent on the roofto .
possible.
The gutter system
Gutters are clogged, or water
Unclog and remove debris. May need to install
is backing up out of the
gutter screens to prevent future clogging.
gutter system.
Rooftop runoff not making it
Correct the positioning or installation of gutters.
into gutter system.
Replace if necessary to capture the roof runoff.
Form SW401-Rainwater Harvesting O &M -Rev. l Page 1 of 3

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potential problems:
How to remediate the problem:
The pump
Pump is not operating
Check to see if the system is clogged and flush if
properly.
necessary. If it is still not operating, then
consult an expert.
The overflow pipe
Erosion is evident at the
Stabilize immediately,
overflow discharge point.
The overflow pipe is clogged.
Unclog or replace if it cannot be unclogged.
The outflow pi pe is dams ed.
Repair or replace the pipe.
The secondary water
Not operating properly.
Consult an expert.
supply
The cistern
Sediment accumulation of 5%
Remove sediment.
or more of the design volume.
Algae growth is present
Do not allow sunlight to penetrate the cistern.
inside the cistern.
Treat the water to remove/ prevent algae.
Mosquitoes in the cistern.
Check screens for damage and repair/ replace.
Treat with 'mosquito dunks' if necessa
The screens and filters
Debris and /or sediment has
Search for the source of the debris /sediment
accumulated. Screens and
and remedy the problem if possible.
filters are clogged.
Clean/ clear debris/ sediment from screen or
filter. Replace if it cannot be cleaned.
Form SW401- Rainwater Harvesting O &M -Rev.1 Page 2 of 3

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:MacGregor Downs Deck Addition
BMP drainage area number:1
Print name:Russ Curtis
Title:General Manager
Address:420 Saint Andrews Lane Cary, NC 27511
Phony
Sigoz
si!
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
/ « , County of do hereby certify that
.personally appeared before me this
day o , Z!%l3 , and acknowledge the due execution of the
forgoin nnage et ce requirements. Witness my hand and official
seal,
LAUREN WELCH
Notary Public, North Carolina
Wake County
My Commission Expires
December 04, 2017
SEAL
My commission expires
A z4YI?
Form SW401-Rainwater Harvesting O &M -Rev. l Page 3 of 3