NC0003425_Groundwater Monitoring Plan_20161102

Attachment 1
GROUNDWATER MONITORING PLAN
The permittee shall conduct groundwater monitoring as may be required to determine the compliance of
this NPDES permitted facility with the current groundwater Standards found under 15A NCAC 2L .0200.
1. WELL CONSTRUCTION
a. Monitoring wells shall be constructed in accordance with 15A NCAC 02C .0108
(Standards of Construction for Wells Other than Water Supply) and any other
jurisdictional laws and regulations pertaining to well construction.
b. Monitoring wells must be constructed by a North Carolina Certified Well
Contractor, the property owner, or the property lessee according to General
Statutes 87-98.4. If the construction is not performed by a certified well contractor,
the property owner or lessee, provided they are a natural person, must physically
perform the actual well construction activities.
C. Within 30 days of completion of well construction, a completed Well Construction
Record (Form GW -1) must be submitted for each compliance monitoring well to
Division of Water Resources, Water Quality Regional Operations Section
(WQROS), 1636 Mail Service Center, Raleigh, NC 27699-1636.
d. The Raleigh Regional Office, telephone number [phone], shall approve the
location of new compliance monitoring wells prior to installation. The regional
office shall be notified at least 48 hours prior to the construction of any compliance
monitoring well and such notification to the WQROS regional supervisor shall be
made from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
e. All monitoring wells shall be regularly maintained. Such maintenance shall
include ensuring that the well caps are rust -free and locked at all times, the outer
casing is upright and undamaged, and the well does not serve as a conduit for
contamination.
f. If the Permittee intends to abandon a compliance monitoring well either
temporarily or permanently, the Permittee shall justify the abandonment and
request approval from the WQROS Regional Office within 30 business days prior
to initiating abandonment procedures.
g. Monitoring wells shall be abandoned in accordance with 15A NCAC 02C .0113
(Abandonment of Wells). Within 30 days of completion of well abandonment, a
completed Well Abandonment Record (Form GW -30) must be submitted for each
monitoring well to WQROS, 1636 Mail Service Center, Raleigh, NC 27699-1636.
2. MAPS
a. Updated maps shall be provided within 60 days when any of the following occur:
i. Compliance monitoring wells are added or deleted from the plan.
ii. The facility operation changes that would require a change in the waste
boundary, compliance boundary, or property line.
b. If the map is updated, the Permittee shall submit two original copies of a site map
with an appropriate scale to easily identify all features overlaid on the most recent
aerial photograph. At a minimum, the map shall include the following
information:
i. The location and identity of each monitoring well.
ii. The location of major components of the waste disposal system.
iii. The location of property boundaries within 500 feet of the disposal areas.
iv. The elevation of the top of the well casing (i.e., measuring point) relative
to a common datum.
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vi. The depth of water below the measuring point at the time the measuring
point is established.
vii. The location of compliance boundary.
Viii. The date the map is prepared and/or revised.
ix. Topographic contours in no more than ten (10) foot intervals. For areas of
high relief, 20 foot intervals shall be acceptable.
C. The map and any supporting documentation shall be sent to the WQROS, 1636
Mail Service Center, Raleigh, NC 27699-1636.
3. GROUNDWATER SAMPLING AND COMPLIANCE.
a. The compliance boundary for the disposal system shall be specified in accordance
with 15A NCAC 02L .0107(a) or (b) dependent upon the date permitted. An
exceedance of groundwater standards at or beyond the compliance boundary is
subject to remediation action according to 15A NCAC 02L .0106(c) or (d) as well
as enforcement actions in accordance with North Carolina General Statute 143-
215.6A through 143-215.6C.
b. Monitoring wells shall be sampled after construction and thereafter at the
frequencies and for the parameters as specified in Part 4 of this plan. All maps,
well construction forms, well abandonment forms and monitoring data shall refer
to the permit number and the well nomenclature.
C. Per 15A NCAC 02H .0800, a Division certified laboratory shall conduct all
laboratory analyses for the required effluent, groundwater or surface water
parameters.
d. The measurement of water levels shall be made prior to purging the wells. The
depth to water in each well shall be measured from the surveyed point on the top
of the casing.
e. The measuring points (top of well casing) of all monitoring wells shall be surveyed
to provide the relative elevation of the measuring point for each monitoring well.
The measuring points (top of casing) of all monitoring wells shall be surveyed
relative to a common datum.
f. Two copies of the monitoring well sampling shall be submitted on a Compliance
Monitoring Form (GW-59CCR), and received no later than 45 days from the
sampling date. Copies of the laboratory analyses shall be kept on site, and made
available upon request. The Compliance Monitoring Form (GW-59CCR) shall
include this permit number and the appropriate well identification number. The
Compliance Monitoring Forms (GW-59CCR) shall be submitted to the Division
of Water Resources Information Processing Unit, 1617 Mail Service Center,
Raleigh, North Carolina 27699-1617
g. For groundwater samples that exceed the ground water quality standards in 15A
NCAC 02L .0202, the Regional Office shall be contacted within 30 days after
submission of the groundwater monitoring form; an evaluation may be required to
determine the impact of the waste disposal activities. Failure to do so may subject
the permittee to a Notice of Violation, fines, and/or penalties.
h. The provisions of sections 3(f) and 3(g) apply only to the sampling events
described in 3 (b) above. The reporting requirements for any sampling events other
than those described in 3(b) above shall be in accordance with the general
provisions of 15A NCAC 02L.
4. MONITORING WELLS, PARAMETERS, AND SAMPLING FREQUENCY.
a. Laboratory methods shall be EPA approved and sufficient to detect constituent
quantities at or below their individual 15A NCAC 02L groundwater standards.
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b. The following chart contains the compliance monitoring wells to be sampled, the
parameters to be sampled, and the frequency in which the samples shall be
collected.
MONITORING
WELLS
PARAMETERS
FREQUENCY
Laboratory Parameters
Aluminum Antimony
Arsenic Barium
Beryllium Boron
Cadmium Calcium
Cobalt Chromium
Copper Iron
Lead Magnesium
Manganese Molybdenum
Mercury Nickel
Potassium Selenium
Sodium Strontium
Thallium Vanadium
CW -1, CW -2, CW -2D,
CW -3, CW -31), CW -4,
CW -5, BG -1
April, July,
November
Zinc Chloride
Sulfate Alkalinity
Bicarbonate Carbonate
Total Dissolved Total
Solids Suspended
Solids
Field Parameters
Turbidity
pH
Temperature
Specific
Conductance
Dissolved
Oxygen
Oxidation
Reduction
Potential
Water level
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