HomeMy WebLinkAbout14006 Classic Coffee Memo Stream 20130827Classic Coffee Decision of Memorandum
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June 20, 2012
DECISION MEMORANDUM
FROM: Carolyn Minnich
TO: Will Service, Bruce Nicholson
Subject: Stewart Creek Stream Sampling Data
1013 and 1024 Montana Drive Charlotte, Mecklenburg County
Brownfields Project Number 14006-10-60
Stewart Creek runs through the above referenced brownfields site. The PD collected three
samples on the brownfields property from the creek including sediment and surface water, upstream, mid stream, and downstream (US, SS, DS, respectively). Mecklenburg County Water
Quality Program collected an additional seven surface water samples along the creek and two
sediment samples in Stewart Creek. In addition, Mecklenburg County collected a sediment and
surface water sample from Little Sugar Creek as a comparison of an urban creek, identified as
MC29A1.
In September 1974, Stewart Creek was classified a Class C Stream. Class C is defined as water
protected for uses such as secondary recreation, fishing, wildlife, fish consumption, aquatic life
including propagation, survival and maintenance of biological integrity, agriculture. Secondary
recreation including wading, boating, and other uses involving human body contact with water where such activities take place in a infrequent, unorganized, or incidental manner.
Surface water grab samples were analyzed for the following parameters:
• Temperature (Field)
• Dissolved Oxygen, DO (Field) • Conductivity (Field)
• pH (Field)
• Fecal Coliform Bacteria
• E-Coli Bacteria
• Enterococcus Bacteria • Ammonia Nitrogen
• Nitrate + Nitrite
• Total Kjeldahl Nitrogen
• Total Phosphorus
• Total Suspended Solids (TSS) • USGS Suspended Sediment Concentration (SSC) Test
• Turbidity (Lab)
Classic Coffee Decision of Memorandum
Page 2 of 5 • Hardness
• Biochemical Oxygen Demand
• Chemical Oxygen Demand
• Oil and Grease (HEM)
• Volatile Organic Compounds (EPA Methods 8260) • Semi-Volatile Organic Compounds (EPA Method 8270)
• Metals (antimony, arsenic, beryllium, cadmium, chromium (trivalent and hexavalent),
copper, lead, manganese, mercury, nickel, selenium, silver, thallium, and zinc)
Sediment soil samples were analyzed for the following parameters: • Volatile Organic Compounds (EPA Methods 8260)
• Semi-Volatile Organic Compounds (EPA Method 8270)
• Polycyclic Aromatic Hydrocarbons (PAH)
• Metals (antimony, arsenic, beryllium, cadmium, chromium (trivalent and hexavalent), copper, lead, manganese, mercury, nickel, selenium, silver, thallium, and zinc)
Analytical Data
Surface water samples had no detections from volatile organic compounds or semi-volatile organic compounds above screening levels. The only metal detected was manganese and there is no standard for this parameter as a Class C water body. The following is a breakdown of the
various parameters
DO: non trout water not less that daily avg. 5.0 mg/L. with instantaneous reading less than 4.0 mg/L.
Comment: field measurement within this range, Stewart 2 low DO.
Fecal: not to exceed 400/100 ML in more than 20 % or samples. Comment: high values, discuss with county
pH: 6.0-9.0 range
Comment: 7.03-7.67 in Stewart Creek; Little Sugar Creek 7.62
Temperature: not to exceed 29 C for mountain and upper piedmont. Comment: below this, around 20 C,
Turbidity: not to exceed 50 NTU
Comment: 3.9-8.5 NTU in field, worst case downstream. See the excel table for each sample value for various parameters.
Classic Coffee Decision of Memorandum
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SURFACE WATER
Surface water contaminants (in micrograms per liter, the equivalent of parts per billion), the
unrestricted use standards for which are contained in Title 15A of the North Carolina Administrative Code, Subchapter 2B, Rule .0208 (_________ __, 201_ version):
Surface Water
Contaminant
Sample
Location
Date of
Sampling
Concentration
Exceeding
Standard
(µg/L)
Standard
(µg/L)
Manganese Stewart 2 05/22/2012 400 NE
Manganese Stewart 3 05/22/2012 73 NE
Manganese Stewart 4 05/22/2012 94 NE
Manganese Stewart 5 05/22/2012 47 NE
Manganese Stewart 6 05/22/2012 48 NE
Manganese Stewart 7 05/22/2012 59 NE
Manganese Stewart 8 05/22/2012 74 NE
Manganese Stewart DS 05/31/2012 37.2 NE
Manganese Stewart SS 05/31/2012 41.0 NE
Manganese Stewart US 05/31/2012 31.1 NE
Manganese MC29A1 05/29/2012 31 NE
NE-No established standard MC29A1 was collected at Little Sugar Creek.
Classic Coffee Decision of Memorandum
Page 4 of 5 STREAM SEDIMENT
Soil
Contaminant
Sample
Location
Depth (ft) Date of
Sampling
Concentration
Exceeding Screening Level1
(mg/kg)
Site-Specific
Protection of GW Screening Level2
Arsenic Stewart 7 Sediment 05/22/2012 1.5 5.8
Arsenic Stewart 8 Sediment 05/22/2012 1.3 5.8
Arsenic Sugar Creek Sediment 05/29/2012 0.90 5.8
Beryllium Stewart 7 Sediment 05/22/2012 0.40 63
Beryllium Stewart SS Sediment 05/31/2012 0.18 63
Trivalent
Chromium
Stewart 7 Sediment 05/22/2012 24 360,000
Trivalent
Chromium
Stewart 8 Sediment 05/22/2012 14 360,000
Trivalent
Chromium
Stewart DS Sediment 05/31/2012 15.8 360,000
Trivalent Chromium Stewart SS Sediment 05/31/2012 176 360,000
Trivalent
Chromium
Stewart US Sediment 05/31/2012 6.2 360,000
Trivalent
Chromium
Sugar Creek Sediment 05/29/2012 14 360,000
Copper Stewart 7 Sediment 05/22/2012 12 700
Copper Stewart 8 Sediment 05/22/2012 10 700
Copper Stewart SS Sediment 05/31/2012 27.5 700
Copper Stewart US Sediment 05/31/2012 9.0 700
Lead Stewart 7 Sediment 05/22/2012 6.1 270
Lead Stewart 8 Sediment 05/22/2012 3.5 270
Lead Stewart DS Sediment 05/31/2012 2.0 270
Lead Stewart SS Sediment 05/31/2012 2.8 270
Lead Stewart US Sediment 05/31/2012 1.8 270
Lead Sugar Creek Sediment 05/29/2012 11 270
Manganese Stewart 7 Sediment 05/22/2012 480 65
Manganese Stewart 8 Sediment 05/22/2012 520 65
Manganese Stewart DS Sediment 05/31/2012 112 65
Classic Coffee Decision of Memorandum
Page 5 of 5 Manganese Stewart SS Sediment 05/31/2012 232 65
Manganese Stewart US Sediment 05/31/2012 159 65
Manganese Sugar Creek Sediment 05/29/2012 250 65
Mercury Stewart DS Sediment 05/31/2012 0.031 1.0
Nickel Stewart 7 Sediment 05/22/2012 4.4 130
Nickel Stewart DS Sediment 05/31/2012 1.3 130
Nickel Stewart SS Sediment 05/31/2012 56.9 130
Nickel Stewart US Sediment 05/31/2012 4.6 130
Nickel Sugar Creek Sediment 05/29/2012 5.9 130
Selenium Stewart 8 Sediment 05/22/2012 0.64 2.1
Thallium Stewart 8 Sediment 05/22/2012 0.65 0.28
Zinc Stewart 7 Sediment 05/22/2012 30 1200
Zinc Stewart 8 Sediment 05/22/2012 36 1200
Zinc Stewart DS Sediment 05/31/2012 19.8 1200
Zinc Stewart SS Sediment 05/31/2012 36.4 1200
Zinc Stewart US Sediment 05/31/2012 25.7 1200
Zinc Sugar Creek Sediment 05/29/2012 36 1200
Zinc Stewart US Sediment 05/31/2012 25.7 1200
Notes: 1. Bold values exceed screening levels for Protection of Groundwater. 2. Sediment samples had low levels of Polynuclear Aromatic Hydrocarbons (PAHs) detected. They were below the Protection of Groundwater PSRG for the IHSB.
Conclusion Stewart Creek is an urban creek in Mecklenburg County with fair water quality. Based on the
sampling event, the brownfields property is not impacting the creek with chlorinated solvents
that have been detected on the brownfields property. At this time, no additional sampling is
required in the creek.
15A NCAC 028 .0211 FRJ!SHSURFACEWAnR QUALDYSTANDARDS FUR CLASS C WATmS
General The water quality standards for all fresh surface waters are the basic standards applicable toOtss CWdIl2S. See
Rule .02080fthis Section for standards for toxic substances and temperature. Additional and more stringent standards
applicable to other specific freshwater classifications are specified in Rules .0212, .0214, .0215, .0216, .0217, .0218, .0219,
.0223, .0224 and .0225 ofthis Section.
(I) Best Usage of Waters: aquatic life propagation and maintenance ofbiological integrity (including
fishing and fish), wildlife, secondary recreation, agriculture and any other usage except for primary
recreation or as a source ofwater supply for drinking, culinary or food processing purposes;
(2) Conditions Related to Best Usage: the waters shall be suitable for aquatic life propagation and
maintenance ofbiological integrity, wildlife, secondary recreation, and agriculture. Sources ofwateJ"
pollution which preclude any of these uses on either a short-term or long-term basis shall be
considered to be violating a water quality standard;
(3) Quality standards applicable to all fresh surface waters:
(a) Chlorophyll a (corrected): not greater than 40 ugll for lakes, reservoirs, and other waters
subject to growths ofmacroscopic or microscopic vegetation not designated as troutwat.els,
and not greater than 15 ugll for lakes, reservoirs, and other waters subject to growths of
macroscopic or microscopic vegetation designated as trout waters (not applicable to Bkes or
reservoirs less than 10 acres in surface area). The Commission or its designeerreyprohNor
limit any discharge ofwaste into surface waters if, in the opinion ofthe Director, the surface
waters experience or the discharge would result in growths ofmicroscopic or macroscopic
vegetation such that the standards established pursuant to this Rule would bevnlatOOorthe
intended best usage ofthe waters would be impaired;
(b) Dissolved oxygen: not less than 6.0 mg/I for trout waters; for non-trout waters,not less thana
daily averege of5.0 mg/I with a minimum instantaneous value ofnot less than4.orrgll;sv"mlJ
waters, lake coves or backwaters, and lake bottom waters may have lower values jfcaused by
natural conditions;
(c) Floating solids, settleable solids, or sludge deposits: only such amounts attributable to
sewage, industrial wastes or other wastes as shall not make the water unsafe orunsuiablefur
aquatic life and wildlife or impair the waters for any designated uses;
(d) Gases, total dissolved: not greater than IIO percent ofsaturation;
(e) Organisms of the coliform group: fecal coliforms shall not exceed a geometric mean of
200/l00ml (MF count) based upon at least five consecutive samples examined duringany 30
day period, nor exceed 400/100ml in more than 20 percentofthe samples examined during
such period. Violations ofthe fecal colifonn standard are e}(Jjected during rainfalleventsaod,
in some cases, this violation is expected to be caused by uncontrollable nonpoint source
pollution. All coliform concentrations are to be analyzed using the membrane filterteehnque
unless high turbidity or other adverse conditions necessitate the tube dilution method; in
case ofcontroversy over results, the MPN 5-tube dilution technique shall be used as the
reference method;
(f) Oils, deleterious substances, colored or other wastes: only such amounts as shall notrender
the waters injurious to public health, secondary recreation or to aquatic life and wildlife or
adversely affect the palatability of fish, aesthetic quality or impair the waters for any
designated uses. For the purpose ofimplementing this Rule, oils, deleterious substances,
colored or other wastes shall include but not be limited to substances that cause a film or
sheen upon ordiscoloration ofthe surface ofthewateror adjoining shorelinespUlSumtto40
CFR IlO.3(a)-(b) which are hereby incorporated by reference including any subsequent
amendments and additions. This material is available for inspection at the Department of
Environment and Naturel Resources, Division ofWater Quality, 512 North Salis bury Street,
Raleigh, North Carolina. Copies may be 0 btained from the Superintendent of1h:uIlmts,U.s.
G>vemment Printing Office, Washington, D.C. 20402-9325 at a cost offorty-five dolIars
($45.00);
(g) pH: shall be normal for the waters in the area, which generally shall range between 6.Oand 9.0
except that swamp waters may have a pH as low as 4.3 ifit is the result ofnatural condiims;
(h) Phenolic compounds: only such levels as shall not result in fish-flesh tainting or impaim::nt
ofother best usage;
(i) Radioactive substances:
(i) Combined radium-226 and radium-228: the maximum average annual activity level
(based on at least four samples collected quarterly) for combined radium-226 and
radium-228 shall not exceed five picoCuries per liter;
(ii) Alpha Emitters: the average annual gross alpha particle activity (including
radium-226, but excluding radon and uranium) shall not exceed 15 picoCuries per
liter;
(iii) Beta Emitters: the maximum average annual activity level (based on at least four
samples, collected quarterly) for strontium-90 shall not exceed eight picoCuries per
liter; nor shall the average annual gross beta particle activity (excluding
potassium-40 and other naturally occurring radio-nuclides) exceed 50 pi:oQuies pet
liter; nor shall the maximum average annual activity level for tritium exceed 20,000
picoCuries per liter;
(j) Temperature: not to exceed 2.8 degrees C (5.04 degrees F) above the natural water
temperature, and in no case to exceed 29 degrees C (84.2 degrees F) for mountain and tIpPO"
piedmont waters and 32 degrees C (89.6 degrees F) for lower piedmont and coastal plain
Waters; the temperature for trout waters shall not be increased by more than 0.5 degrees C
(0.9 degrees F) due to the discharge ofheated liquids, but in no case to exceed 20 degrees C '
(68 degrees F);
(k) Turbidity: the turbidity in the receiving water shall not exceed 50 Nephelometric Turbidity
Units (NTU) in streams not designated as trout waters and 10 NTU in streams, lakes or
reservoirs designated as trout waters; for lakes and reservoirs not designated as troutW<ltels,
the turbidity shall not exceed 25 NTU; if turbidity exceeds these levels due to natural
background conditions, the existing turbidity level shall not be increased. Compliance wfh
this turbidity standard can be met when land management activities employ Best
Management Practices (BMPs)[as defined by Rule .0202 ofthis Section]recomrended by the
Designated Nonpoint Source Agency [as defined by Rule .0202 of this Section]. ~ITlISt
be in full compliance with all specifications governing the proper design, installation,
operation and maintenance ofsuch BMPs;
(I) Toxic substances: numerical water quality standards (maximumpennissible levels) for the
protection of human health applicable to all fresh surface waters are in Rule .0208 ofthis
Section. Numerical water quality standards (maximum pennissible levels) to protect aquafu
life applicable to all fresh surface waters:
(i) Arsenic: 50 ug/l;
(ii) Beryllium: 6.5 ug/I;
(iii) Cadmium: 0.4 ug/l for trout waters and 2.0 ug/l for non-trout waters; attainment of
these water quality standards in surface waters shall be based on measurement of
total recoverable metals concentrations unless appropriate studies have been
conducted to translate total recoverable metals to a toxic form. Studies used to
determine the toxic form or translators must be designed according to the "Water
Quality Standards Handbook Second Edition" published by the Environmental
Protection Agency (EPA 823-B-94-005a) or "The Metals Translator: G1idance For
Calculating a Total Recoverable Permit Limit From a Dissolved Criterion" pubfuhed
by the Environmental Protection Agency (EPA 823-B-96-007) which are hereby
incorporated by reference including any subsequent amendments. The Director
shall consider conformance to EPA guidance as well as the presence of
environmental conditions that limit the applicability oftranslators in approvingthe
use ofmetal translators;
(iv) Chlorine, total residual: 17 ug/I;
(v) Chromium, total recoverable: 50 ug/l;
(vi) Cyanide, 5.0 ug/I, unless site-specific criteria are developed based upontheaquali::
life at the site utilizing The Recalculation Procedure in Appendix B ofAppendixLil
the Environmental Protection Agency's Water Quality Standards Handbookhereby
incorporated by reference including any subsequent amendments;
(vii) Fluorides: 1.8 mg/I;
(viii) Lead, total recoverable: 25 ug/~ collection ofdata on sources,transport andfuteof
lead shall be required as part of the toxicity reduction evaluation for dischargers
who are out ofcompliance with whole effluent toxicity testing requirements and the
concentration of lead in the effluent is concomitantly determined to exceed an
instream level on.! ug/I from the discharge;
(ix) Mercury: 0.012 ug/l;
(x) Nickel: 88 ug/I, attainment ofthese water quality standards in surface waters shaD
be based on measurement of total recoverable metals concentrations unless
appropriate studies have been conducted to translate total recoverable metals loa
toxic fonn. Studies used to detennine the toxic form or translators mustbedes{?,ned
according to the "Water Quality Standards Handbook Second Edition" published
by the Environmental Protection Agency (EPA 823-B-94-005a) or "The Metals
Translator: Guidance For Calculating a Total Recoverable Permit Limit From a
Dissolved Criterion" published by the Environmental Protection Agency (EPA 823
B-96-·oo7) which are hereby incorporated by reference including any subseq uent
amendments. The Director shall consider conformance to EPA guidance as wellas
the presence ofenvironmental conditions that limit the applicability oftmnsbtors i1
approving the use ofmetal translators;
(xi) Pesticides:
(A) Aldrin: 0.002 ug/l;
(B) Chlordane: 0.004 ug/l;
(C) DDT: 0.001 ug/l;
(0) Demeton: 0.1 ug/I;
(E) Dieldrin: 0.002 ug/l;
(F) Endosulfan: 0.05 ug/I;
(G) Endrin: 0.002 ug/I;
(H) GIthion: 0.01 ug/l;
(I) Heptachlor: 0.004 ug/I;
(J) Lindane: O.oI ug/I;
(K) Methoxychlor: 0.03 ug/I;
(L) Mirex: 0.001 ug/~
(M) Parathion: 0.013 ug/~
(N) Toxaphene: 0.0002 ug/l;
(xii) Polychlorinated biphenyls: (total ofall PCBs and congeners identified) 0.001 ug/l;
(xin) Selenium: 5 ug/I;
(xiv) Toluene: 11 ug/I or 0.36 ug/I in trout waters;
(xv) Trialkyltin compounds: 0.07 ug/I expressed as tributyltin;
(4) Action Levels for Toxic Substances:
(a) Copper: 7 ug/l;
(b) Iron: 1.0mg/l;
(c) Silver: 0.06 ug/I;
(d) Zinc: 50 ug/I;
(e) Chloride: 230 mg/I;
Ifthe Action Levels for any ofthe substances listed in this Subparagraph (which are generally not
bioaccumulative and have variable toxicity to aquatic life because ofchemical form, solubility, stream
characteristics or associated waste characteristics) are determined by the waste load allocation to be
exceeded in a receiving water by a discharge under the specified low flow criterion forloxicsubstanees
(Rule .0206 in this Section), the discharger shall monitor the chemical or biological effects ofthe
discharge; efforts shall be made by all dischargers to reduce or eliminate these substances from tiler
effluents. Those substances for which Action Levels are listed in this Subparagraph shaJlbeliliedlfi
appropriate in the NPDES permit based on the Action Levels listed in this Subparagraph ifsufficient
information (to be detenuined for metals by measurements ofthat portion ofthe dissolved instream
concentration of the Action Level parameter attributable to a specific NPDES permitted discharge)
exists to indicate that any ofthose substances may be a causative factor resulting in toxicity ofthe
effluent. NPDES pennit limits may be based on translation ofthe toxic fonu to total recovembk:m:taE.
Studies used to detenuine the toxic fonu or translators must be designed according to " WaterQmlity
Standards Handbook Second Edition" published by the Environmental ProtectionAgency (EPA 823-B
94-005a) or "The Metals Translator: OJidance For Calculating a Total Recoverable Permit LiTiFroma
Dissolved Criterion" published by the Environmental Protection Agency (EPA 823-B-%OO7)whi:hare
hereby incorPorated by reference including any subsequent amendments. The Director shallconsi:ler
conformance to EPA guidance as weU as the presence of environmental conditions that limit the
applicability oftranslators in approving the use ofmetal translators.
Forpurposes otherthan consideration ofNPDES permitting ofpoint source discharges as descrhedil
this Subparagraph, the Action Levels in this Rule, as measured by an appropriate analytical rechni:jue,
per 15A NCAC 02B .0103(a), shall be considered as numerical ambient water quality standards.
History Note: AuthorityG.S. 143-214.1; 143-215.3(a)(1);
Eff February 1, 1976;
Amended Eff May 1, 2007; April 1, 2003; August 1, 2000; October 1,1995; August 1, 1995;ApriI1,
1994; February 1, 1993.