HomeMy WebLinkAbout20171559 Ver 3_More Info Received including Residential Well Sampling and Complaint Resolution Plan_20211110Homewood, Sue
From: Miller, Vickie M. (Raleigh) <Vickie.Miller@hdrinc.com>
Sent: Wednesday, November 10, 2021 7:58 PM
To: Homewood, Sue; Wendee Smith; Jim Melvin
Cc: Masemore, Sushma; Wojoski, Paul A; Smith, Danny; Gibby, Jean B CIV USARMY CESAW
(USA)
Subject: [External] RE: GRMS Request for Additional Information
Attachments: GRMS_Pad_Buffers_Sept 2021.pdf; GRMS Residential Well Testing Resolution Plan
11102021.pdf
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Hi Sue,
In an effort to make certain we are getting information to you and team in a timely manner we will be sending
responses to the comments provided on November 5, 2021 as they are developed. Assistant Secretary Masemore and
Wendee have discussed this approach and determined that it would make sense to provide the information in the
categories as they were identified in the letter. This email and attachment address the Residential Well Sampling and
Compliant Resolution Plan (Items 26 to 31 of the letter). The attachment is the revised Plan and below you will find
answers to the comments received. These were reviewed by the County staff prior to submission as well as reviewed
within HDR. Please let us know if you have additional questions related to this category of comments.
26. Please provide a timeline for pre -construction well testing and confirm it can be done
and adequately reviewed prior to start of any land disturbing activities on the site.
The County will move as quickly as possible; however, the timeline is tight. With a 4 week period for the
first mailing and assuming at least a couple weeks for the second mailing this would mean that sampling
will begin at the end of the year and continue into early 2022. The County intends to begin the testing
in areas that will be within 500 ft of the land disturbing activities initially and will then expand to areas
that exceed the 500 feet from the disturbance until all the testing is completed.
27. Wells in this area are typically completed in the fractured rock aquifer. There is a high degree
of variability in fracture density and orientation in this aquifer. A 150-foot radius from the site is
insufficient to identify private and public water supply wells for potential impacts, especially given the
proposed de -watering scheme. A 500-foot radius is more consistent with established regulatory
setbacks for pollution sources and dewatering impacts. Please revise the residential well sampling
plan accordingly.
We stated 150 feet in the report; however, to better define the area we have stated this as being 150' from
the property boundary. The actual boundary of the grading is well over 500 ft to the property line for a large
majority of the site. I have attached a map to illustrate the buffer width on the site from the pad area to the
property boundary. The 150 feet then extends outside of the property boundary to capture the properties
provided in Table 1 of the plan.
28. The residential well sampling plan states that a third party, Randolph County, will perform the well
sampling and well yield testing. This represents a significant resource commitment by the County and
DEQ would like to have assurances that the County accepts this responsibility and has the financial
1
and technical resources to carry out the specified well sampling and yield testing. Provide
documentation of assurance from the County of the commitments identified in the plan.
Randolph County will hire an independent third party (Golder Associates) to conduct well sampling and
testing. Randolph County will handle mailings and interactions with property owners. The Health Department will
evaluate the test results, determine if a well has been compromised, and make recommendations for appropriate
remedies. Both the County and Golder Associates have the manpower and technical expertise available to handle this
commitment.
29. Since the proposed well yield testing constitutes a hydrogeologic assessment, it will need to
be performed under the supervision of a NC licensed geologist or engineer. Please revise the plan to
indicate this requirement.
Golder Associates has licensed Geologists on staff. The plan now states this requirement.
30. The proposed groundwater quality testing parameters includes VOCs, SVOCs, and pesticides. These
tests are very sensitive to contamination during collection, transportation, and lab analyses, and
may not provide an accurate measure of possible impacts from the proposed project on
groundwater quality. In addition, these samples should be collected by personnel specifically trained
in sampling for VOCs, SVOCs, and pesticides. Please revise the groundwater quality testing
parameters to also include bacteria, metals, turbidity, and total dissolved solids by EPA -approved
drinking water testing methods, and that these analyses must be performed by laboratories that are
currently certified for these testing methods by NC DWR.
The parameters listed were added to the plan as well as language regarding the laboratories being certified
by NCDWR.
31. The proposed dewatering activities are significant, and little information has been provided on the
location, process, and duration of this activity. Construction dewatering is a deemed permitted
activity, but it must be conducted in a manner that does not result in water quality violations.
Provide additional detail on the location and groundwater extraction system elements so that the
Division may evaluate this proposed activity. It is highly unlikely that the significant proposed
lowering of the water table could be maintained after construction without active pumping or the
installation of horizontal and vertical hydraulic barriers. Please provide further details on how this is
to be accomplished.
Control of groundwater during construction operations will be performed by maintaining positive drainage off
the work area and directed toward downstream features. The permanent groundwater management system
will consist of ditches and trench drains placed underneath the pad area on an as -needed basis that allow the
groundwater to flow into French drains that will be located in the natural channels on -site within proposed fill
areas. This will allow the groundwater to flow through the site and into natural downstream channels. Based
on permeability testing of soil samples on -site and pump testing of piezometers on -site, the groundwater
flow rate is relatively slow within the proposed cut depths such that groundwater extraction using pumps or
barriers is not anticipated for long term groundwater management.
Thank you,
Vickie
Vickie Miller, AICP, Pws
D 919.232.6637 M 919.559.2632
hdrinc.com/follow-us
2
From: Homewood, Sue <sue.homewood@ncdenr.gov>
Sent: Friday, November 5, 2021 1:57 PM
To: Miller, Vickie M. (Raleigh) <Vickie.Miller@hdrinc.com>; Wendee Smith <wsmith@s2cnc.com>; Jim Melvin
<jimmelvin@aol.com>
Cc: Masemore, Sushma <sushma.masemore@ncdenr.gov>; Wojoski, Paul A <Paul.Wojoski@ncdenr.gov>; Smith, Danny
<danny.smith@ncdenr.gov>; Gibby, Jean B CIV USARMY CESAW (USA) <Jean.B.Gibby@usace.army.mil>
Subject: GRMS Request for Additional Information
CAUTION: [EXTERNAL] This email originated from outside of the organization. Do not click links or open attachments
unless you recognize the sender and know the content is safe.
Per our recent conversations and meetings, and as a follow up to the preliminary items sent via email on 11/3/21, please
see the attached Request for More Information.
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
336 776 9693 office
336 813 1863 mobile
Sue.Homewood@ncdenr.gov
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
Errsll correspondence to aI7d from Os actkass is subject to #fie
North Q81r Pubec Placards Law &id rrtay be disclosed to third dies.
3
Residential Well Sampling
and Complaint Resolution
Plan
Greensboro Randolph Megasite
Attachment A
Randolph County, North Carolina
November 10, 2021
Table of Contents
1.0 WATER RESOURCES IDENTIFICATION AND TESTING PLAN 2
2.0 IDENTIFYING WATER RESOURCES 2
2.1 Private Wells and Springs 2
3.0 WATER RESOURCE EVALUATION 3
3.1 Private Water Supplies 3
4.0 POST -CONSTRUCTION BASELINE WATER RESOURCE TESTING 4
5.0 COMPLAINT RESOLUTION PROCESS 4
6.0 REFERENCES 5
Tables 6
Table 1. Potential Properties with Private Water Supply Wells Within 150 Feet 6
Appendices 8
Appendix A. Water Sample Application 9
Appendix B. Well Test for Yield 11
1
1.0 WATER RESOURCES IDENTIFICATION AND TESTING PLAN
Randolph County prepared and will execute the terms of this Residential Well Testing and Complaint
Resolution Plan (Plan) in connection with the Greensboro Randolph Megasite (Project) to document pre -
construction baseline and post- construction water quality and quantity of privately -owned water supply
systems.
This Plan summarizes protocols for identifying and assessing private water supplies in the vicinity of the
Project. Randolph County documented locations and characteristics of private water supplies directly
adjacent to the Project boundary and will offer pre- and post -construction quality and yield testing for
all water wells located within 150 feet of construction workspaces. Several wells have already been
tested by the County.
This Plan discusses the outreach methodology that will be followed and the general plan for testing.
Private water resources identified for water quality and quantity testing within 150 feet of the GRMS
property boundary are summarized in Table 1. Prior to construction, the private water supply owners
will be contacted by Randolph County via certified mail to confirm the location and characteristics of
water resource(s) on the owner' s property and to request permission for the Project to conduct water
quality and quantity sampling.
Field confirmation of private water sources began in 2018 but has not been completed on some parcels
because property access permission has not been granted. Therefore, this Plan is subject to change
following the completion of field environmental investigations.
2.0 IDENTIFYING WATER RESOURCES
2.1 Private Wells and Springs
Private wells located within 150 feet of the GRMS property boundary will be identified by desktop
review and field observation (where property access was granted). The private water supply sources will
be confirmed through pre -construction water supply testing (see Table 1) as described in this Plan.
As part of the desktop review for potential drinking water sources an indirect method was employed to
identify potential private wells. GIS data taken from the various counties were used to identify if a
structure was present on the parcel. To maximize the potential for identifying private water resources
all structures were assumed to have one or more private wells.
As discussed in this Plan, the property owners identified by desktop review along the Project boundaries
will be contacted by Randolph County prior to construction via certified mail to confirm drinking water
sources on the identified property and to request permission to conduct water quality and quantity
testing.
If a private property owner does not respond to the certified mail request for information within
approximately four (4) weeks of submittal by Randolph County, a second request will be sent. If no
response is provided to the Project through the second submittal, no further contacts will be initiated
with the property owner regarding water resources.
Potential locations with private wells within 150 feet of the property boundary are identified as
described above in Table 1. Appendix A includes the provides the Water Sample Application that will be
requested from the water supply owners during the initial contact along with a request for permission
to sample the water supply.
2
3.0 WATER RESOURCE EVALUATION
The following discussion outlines protocols water supply testing activities. The testing results will be
documented by Randolph County and provided directly to the water supply owner.
3.1 Private Water Supplies
1. Randolph County will offer pre- and post- construction quality and yield testing for all water
wells and water supple springs located within 150 feet of the Project property boundary. The
Project proposes to collect one sample before construction and a second sample three to six
months post construction and conduct a well yield test.
2. All private property owners with a known or suspected water source (see earlier discussion) will
be contacted prior to construction as discussed below:
a. Send contact by mail to mailing address listed for the property owner;
b. If no response is received within approximately 4 weeks of sending the first letter, a
second follow-up letter will be sent;
c. If no response is provided by property owner after two (2) attempts this result will be
documented and Randolph County will suspend further contact to the property owner
regarding water quality testing;
d. If a property owner declines permission to conduct water quality testing, this will be
documented, and the Project will suspend further contact with the property owner
regarding water quality testing;
3. Property and water supply access approval documentation will be secured by Randolph County
before entering the property. See Appendix A for information to be collected from the water
supply owner during initial and follow-up contact.
4. A field crew will be deployed to collect water samples at the identified locations.
5. The sampling location coordinates will be collected using GPS (1-meter resolution) and
recorded.
6. Field testing, sample collection and sample management techniques will be implemented
consistent with industry standards and approved guidance (U.S. EPA and North Carolina
Department of Environmental Quality).
7. For water well testing, a water sample will be collected from a flowing spigot (after a minimum
of 10 minutes purging) upstream of any treatment system (if applicable) in order to collect a raw
water sample in the appropriate laboratory -prepared sample bottle with appropriate
preservatives. Field parameters will be analyzed at the time of water sample collection.
a. If the well does not have a pump installed, or does not demonstrate artesian flow, there
will be limited ability to complete the testing described in this plan.
8. Water samples will be kept cool and transported to the analytical laboratory(ies) under Chain of
Custody.
9. The water quality testing will include groundwater quality standards for Bacteriological,
Inorganic Chemical, Volatile Organic Compounds, Pesticides, Metals, Turbidity, and Total
Dissolved Solids (15A NCAC 02L .0202 GROUNDWATER QUALITY STANDARDS) and the USEPA
drinking water testing methods EPA 524.2, EPA 525.2, respectively, and Total Petroleum
Hydrocarbons in EPA SW846 8015C.
a. The pre and post -construction sampling events will be comprised of the same tests per
the groundwater quality standards unless there is a concern noted by the property
owner, or if there is a verified detection of a VOC or SVOC or TPH from the first sampling
event.
3
b. National Environmental Laboratory Accreditation Program (NELAP)- accredited
laboratories will be utilized for water sample analyses. These analyses must be
performed by laboratories that are also currently certified for these testing methods by
NCDWR.
10. Water resources testing activities (including the condition of the water resource and equipment)
will be photo -documented. All field activities and meter calibration for each water resources
sampling event will be documented.
11. The first pre -construction sampling event provides an opportunity to evaluate the condition of
each well, surrounding topography, land characteristics/land-use, and generally assess the
overall vulnerability of the water supply to existing or future sources of impact.
12. Randolph County will provide the water supply owner with the water supply testing results.
Concurrent with providing the owner these results, the County will discuss with the owner any
conditions that observed at the water supply that represent potential for existing or future
sources of impacts.
13. The second sampling event will also include well yield testing. The water supply owner will be
apprised of the well yield testing procedure, and Randolph County will request permission to
access the well for the quantity testing, at the owner's discretion. This testing will be performed
under the supervision of a NC licensed geologist or engineer.
14. Randolph County will consult with an owner who appears to have a compromised water supply
based on pre -construction sampling results. The Project will tailor an evaluation protocol for the
second round of water quality testing as appropriate to evaluate the integrity of the water
supply and ensure a comprehensive pre and post construction assessment is completed.
4.0 POST -CONSTRUCTION BASELINE WATER RESOURCE TESTING
Randolph County will conduct post -construction testing of all water supply wells within 150 feet of the
GRMS property boundaries within properties where the owner has accepted the testing offer. Randolph
County will follow the same procedures described above for water supply sampling. The Project will
provide the post -construction monitoring results directly to the property owner.
Randolph County will maintain water supply contingency planning efforts through the construction
period and until final land reclamation is completed.
5.0 COMPLAINT RESOLUTION PROCESS
If a claim of impact is made by a private well owner, a thorough investigation of the alleged impact will
be conducted by qualified groundwater and surface water scientists and engineers using industry
standard hydrogeologic investigative practices. This will include a review of the timing of the claim
relative to the construction schedule, detailed interview with the supply owner, mechanical evaluation
of the water system, possible resampling and analysis of the supply, performance of a hydrogeologic
assessment, and other pertinent evaluations. Because each water supply system and hydrogeologic
setting is unique, the only means to establish a clear link between a water supply quality or quantity
issue and Project activities is through a comprehensive evaluation leading to complaint resolution.
If the Randolph County Health Department determines that an impact was related to construction of the
GRMS, then the investigations described above will provide valuable information concerning the
appropriate remedies. Restoration of a water supply could include:
• temporary supplied water until the water quality returns to baseline;
• connection to secondary source, if available; and/or
4
• temporary treatment to establish baseline quality (or better).
If the hydrogeologic assessment indicates that a long-term solution is needed, the following remedies as
appropriate may be used to restore water quality and quantity to pre- construction conditions:
• a new on -site source (new water well); or a combination of source replacement and treatment
options; or
• connection to the City of Greensboro's water supply system.
6.0 REFERENCES
National Environmental Laboratory Accreditation Program (NELAP), 2016.
http://www.nelacinstitute.org/content/NELAP/index.php
5
Tables
Table 1. Potential Properties with Private Water Supply Wells Within 150
Feet of the Property Boundary
Parcel ID
Street Address
City
State
Zip
8708735760
6135 JULIAN AIRPORT RD
LIBERTY
NC
27298
8708735798
6135 JULIAN AIRPORT RD
LIBERTY
NC
27298
8717960600
5014 TROY SMITH RD
LIBERTY
NC
27298
8717993994
5948 MACEDONIA LOOP RD
LIBERTY
NC
27298
8718915221
5948 MACEDONIA LOOP RD
LIBERTY
NC
27298
8728002688
5948 MACEDONIA LOOP RD
LIBERTY
NC
27298
8708733381
4742 CALHOUN DR
LIBERTY
NC
27298
8708710363
5731 JULIAN AIRPORT RD
LIBERTY
NC
27298
8728024087
7611 OLD 421 RD
LIBERTY
NC
27298
8717335231
6041 STARMOUNT RD
LIBERTY
NC
27298
8717442907
4807 HOOTS HOLLOW RD
LIBERTY
NC
27298
8708724777
5945 JULIAN AIRPORT RD
LIBERTY
NC
27298
8717648977
4595 TROY SMITH RD
LIBERTY
NC
27298
8707990472
5536 JULIAN AIRPORT RD
LIBERTY
NC
27298
8708803377
565 W PERRY RD
SILER CITY
NC
27344
8708734021
6029 JULIAN AIRPORT RD
LIBERTY
NC
27298
8718446055
P O BOX 1691
LIBERTY
NC
27298
8708616529
5775 JULIAN AIRPORT RD
LIBERTY
NC
27298
8708709448
5616 JULIAN AIRPORT RD
LIBERTY
NC
27298
8708807291
4606 CRUTCHFIELD FARM RD
LIBERTY
NC
27298
8708743132
9154 OLD 421 RD
JULIAN
NC
27283
8708722536
5925 JULIAN AIRPORT RD
LIBERTY
NC
27298
8718540083
324 W WENDOVER AVE,
SUITE 207
GREENSBORO
NC
27408
8708723471
4813 WOODVERY DR
LIBERTY
NC
27298
8717728661
5466 STARMOUNT RD
LIBERTY
NC
27298
8717982190
5230 TROY SMITH RD
LIBERTY
NC
27298
6
8717989604
5230 TROY SMITH RD
LIBERTY
NC
27298
8717442242
P O BOX 887
LIBERTY
NC
27298
8708607893
2309 MICHELLE LN
GREENSBORO
NC
27407
8708713955
2309 MICHELLE LN
GREENSBORO
NC
27407
8708724709
200 HAMMOCK FARM RD
WINSTON SALEM
NC
27105
8708713423
5324 SHADY HOLLOW RD
STALEY
NC
27355
8718738218
PO BOX 326
LIBERTY
NC
27298
8718823833
PO BOX 326
LIBERTY
NC
27298
8708614323
5729 JULIAN AIRPORT RD
LIBERTY
NC
27298
8718733763
7846 OLD 421 RD
LIBERTY
NC
27298
8717520081
204 LOYD RD
STATESVILLE
NC
28625
8708704424
5667 JULIAN AIRPORT RD
LIBERTY
NC
27298
8717996279
5334 TROY SMITH RD
LIBERTY
NC
27298
8717950680
4948 TROY SMITH RD
LIBERTY
NC
27298
8708723262
5085 STALEYS DAIRY RD
LIBERTY
NC
27298
8718537779
8124 OLD 421 RD
LIBERTY
NC
27298
8708734596
P O BOX 434
LIBERTY
NC
27298
8708713756
5781 JULIAN AIRPORT RD
LIBERTY
NC
27298
8717558375
6767 BROOKBANK RD
SUMMERFIELD
NC
27358
8717971072
4977 PEARL FERGUSON RD
LIBERTY
NC
27298
8717969801
4977 PEARL FERGUSON RD
LIBERTY
NC
27298
8708723059
600 PURTIS CREEK LN
GEORGETOWN
TX
78628
7
Appendices
8
Appendix A. Water Sample Application
9
Applicant:
Address: Application #:
City, ST ZIP Parcel number:
COUNTY OF RANDOLPH
Health Department
204 E Academy St - Asheboro, NC 27203
WATER SAMPLE APPLICATION
Date:
Owner: Contact name:
Address: Contact phone:
City, ST ZIP Contact e-mail:
LOCATION INFORMATION:
Location:
Subdivision:
Lot number:
WELL AND WATER INFORMATION:
Facility Type:
Well Type: Select the well type.
Well Location: Select the well location.
Faucet at well: Select faucet at well.
If No, Specify Location:
Water Treatment System Present: Select treatn
Treatment Type:
WATER SAMPLE INFORMATION:
Type of water sample needed: Type of water sample needed.
Additional water sample needed: Type of water sample needed.
Additional water sample needed: Type of water sample needed.
COMMENTS:
AUTHORIZATION TO PROCEED:
I have read this application and certify that the information provided herein is true, complete and correct.
Authorized County and State officials are granted right of entry to conduct necessary inspections to determine
compliance with applicable laws and rules. I understand that I am solely responsible for making the site
accessible so that a water sample can be collected.
Signature of property owner/legal representative Date
LOCAL TELEPHONE NUMBERS
Asheboro: (336) 318-6262 • Archdale/Trinity: (336) 819-3262
http://www.randolphcountync.gov
Water Sample Application (EHWS 1)
Rev. 9/5/2019
Appendix B. Well Test for Yield
11
15A NCAC 02C .0110 WELL TESTS FOR YIELD
(a) Every domestic well shall be tested for capacity by one of the following methods:
(1) Pump Method
(A) select a permanent measuring point, such as the top of the casing;
(B) measure and record the static water level below or above the measuring point prior to
starting the pump;
(C) measure and record the discharge rate at intervals of 10 minutes or less;
(D) measure and record water levels using a steel or electric tape at intervals of 10 minutes or
less;
(E) continue the test for a period of at least one hour; and
(F) make measurements within an accuracy of plus or minus one inch.
(2) Bailer Method
(A) select a permanent measuring point, such as the top of the casing;
(B) measure and record the static water level below or above the measuring point prior to
starting the bailing procedure;
(C) bail the water out of the well for a period of one hour or longer;
(D) determine and record the bailing rate in gallons per minute at the end of the bailing
period; and
(E) measure and record the water level after stopping bailing process.
(3) Air Rotary Drill Method
(A) measure and record the amount of water being inj ected into the well during drilling
operations;
(B) measure and record the discharge rate in gallons per minute at intervals of one hour or
less during drilling operations;
(C) after completion of the drilling, continue to blow the water out of the well for 30 minutes
or longer and measure and record the discharge rate in gallons per minute at intervals of
10 minutes or less during the period; and
(D) measure and record the water level after discharge ceases.
(4) Air Lift Method. Measurements shall be made through a pipe placed in the well. The pipe shall
have an inside diameter of at least five -tenths of an inch or greater and shall extend from top of the
well head to a point inside the well that is below the bottom of the air line.
(A) Measure and record the static water level prior to starting the air compressor;
(B) Measure and record the discharge rate at intervals of 10 minutes or less;
(C) Measure and record the pumping level using a steel or electric tape at intervals of 10
minutes or less; and
(D) Continue the test for a period of one hour or longer.
(b) Public, Industrial, and Irrigation Wells. Every industrial or irrigation well and, if required by rule adopted by the
Commission for Public Health, every well serving a public water supply system upon completion shall be tested for
capacity by the following or equivalent method:
(1) The water level in the well to be pumped and in all observation wells shall be measured and
recorded prior to starting the test.
(2) The well shall be tested by a pump of sufficient size and lift capacity to test the yield of the well,
consistent with the well diameter and purpose.
(3) The pump shall be equipped with throttling devices to reduce the discharge rate to approximately
25 percent of the maximum capacity of the pump.
(4) The test shall be conducted for a period of 24 hours or longer without interruption and, except for
wells constructed in Coastal Plain aquifers, shall be continued for a period of four hours or longer
after the pumping water level stabilizes.
(5) The pump discharge shall be set at a constant rate or rates that can be maintained throughout the
testing period. If the well is tested at two or more pumping rates (a step-drawdown test), pumping
at each pumping rate shall continue to the point that the pumping water level declines no more
than 0.1 feet per hour for a period of four hours or more for each pumping rate, except for wells
constructed to Coastal Plain aquifers. In wells constructed in Coastal Plain aquifers, pumping at
each pumping rate shall continue for four hours or longer.
(6) The pump discharge rate shall be measured by an orifice meter, flowmeter, weir, or equivalent
metering device. The metering device used shall have a calibration accuracy within plus or minus
five percent of a known standard.
(7) The discharge rate of the pump and time shall be measured and recorded at intervals of 10 minutes
or less during the first two hours of the pumping period for each pumping rate. If the pumping rate
is constant after the first two hours of pumping, discharge measurements and recording may be
made at longer time intervals not to exceed one hour.
(8) The water level in each well and time shall be measured and recorded at intervals of five minutes
or less during the first hour of pumping and at intervals of 10 minutes or less during the second
hour of pumping. After the second hour of pumping, the water level in each well shall be
measured at such intervals that the lowering of the pumping water level does not exceed three
inches between measurements.
(9) A reference point for water level measurements shall be selected and recorded for the pumping
well and each observation well to be measured during the test. All water level measurements shall
be made from the selected reference points, which shall be permanently marked.
(10) All water level measurements shall be made with a steel or electric tape or equivalent measuring
device.
(11) All water level measurements shall be made within an accuracy of plus or minus one inch or to 0.1
foot.
(12) After the completion of the pumping period, measurements of the water level recovery rate in the
pumped well shall be made in the same manner as the drawdown for a period of two hours or
greater.
History Note:
Authority G.S. 87-87; 87-88;
Eff. February 1, 1976;
Amended Eff. September 1, 2009, April 1, 2001; December 1, 1992; September 1, 1984; April 20,
1978;
Readopted Eff. September 1, 2019.
Legend
Megasite Boundary
Permit Pad Area
-41-0- Pad Buffers
0 Feet 1,200
F)1
CONFIDENTIAL
GREENSBORO-RANDOLPH MEGASITE
North Carolina, U.S.A.
September 2021
PAD BUFFER MAP
CREENSBORO
RANDOLPH