RESOURCE

Supplemental Resource & Archive

- C -

 

The following are commonly used abbreviations, acronyms, and a glossary of specialized terms

— C —

cable length — unit of measure, linear distance / length — = 120 fathom.

cadmium (abbreviation: Cd) — chemical element,  inorganic chemical (MCL = 0.005 mg/L).

cadmium dust/fume – chemical compound, metal (element symbol: Cd) – CAS number 7440439. ACGIH TLV = 0.01  mg/m3 (total dust) TWA, 0.002  mg/m3 (respirable dust) TWA, A2 ; NIOSH REL none, potential occupational carcinogen; NIOSH IDLH 9 mg/m3, OSHA PEL 0.005  mg/m3 TWA; LEL unknown.

caesium — chemical element — (abbreviation: Cs).

calcarious (abbreviation: calc).

calcite — CaCO3 — (carbonate mineral).

calcite – natural mineral – (chemical formula: CaCO3).

calcium — chemical element — (abbreviation: Ca).

calcium arsenate (as As) – chemical compound, (COC symbol: As) – CAS number 7778441. ACGIH TLV = 0.01  mg/m3 TWA, A1 ; NIOSH REL 0.002 mg/m3 15 minute ceiling, potential occupational carcinogen; NIOSH IDLH 5 mg/m3, OSHA PEL 0.010  mg/m3 TWA; LEL noncombustible solid.

calcium oxide – chemical compound  – CAS number 1305788. ACGIH TLV = 2  mg/m3 TWA; NIOSH REL 2 mg/m3 TWA; NIOSH IDLH 25 mg/m3, OSHA PEL 5  mg/m3 TWA; LEL noncombustible solid.

California – (abbreviation: CA).

californium — chemical element — (abbreviation: Cf).

Callaway District Hospital – medical facility; Callaway, NE – (acronym, CDH).

cambrian – geologic time, period – (symbol: C, color: brick-red) approximately 543-490 MYA; approximate duration: 70 MY.

Cambridge Memorial Hospital – medical facility; Cambridge, NE – (acronym, CMH).

camphor – chemical compound – CAS number 76222. ACGIH TLV = 12  mg/m3 (2 ppm) TWA, 19 mg/m3 (3 ppm) STEL; NIOSH REL 2 mg/m3 TWA; NIOSH IDLH 200 mg/m3, OSHA PEL 2  mg/m3 TWA; LEL 0.6% (10% LEL, 3,600 mg/m3).

Candeleros formation – geologic stratigraphic description –.

carat (1877) — unit of measure, weight —   = 3.168 grain = 205.3 mg.

carat (metric) — unit of measure, weight —   = 200 mg.

carbaryl – chemical compound – CAS number 63252. ACGIH TLV = 5  mg/m3 TWA; NIOSH REL 5 mg/m3 TWA; NIOSH IDLH 100 mg/m3, OSHA PEL 5  mg/m3 TWA; LEL noncombustible solid.

carbofuran  (synonyms: Niagra 10242, furadan 4F, furidan 3G, bifur, cisfuran, crisfuran, chinufur, cuaterr, yaltox, pillafurann, kenofuran, carbofuran) – organic chemical – (MCL = 0.04 mg/L).

carbon — chemical element — (abbreviation: C); see also diamond and graphite.

carbon black – chemical compound – CAS number 1333864. ACGIH TLV = 3.5  mg/m3 TWA; NIOSH REL 3.5 mg/m3 TWA, 0.1 PAHs/m3 TWA; NIOSH IDLH 1,750 mg/m3, OSHA PEL 3.5  mg/m3 TWA; LEL solid.

carbon dioxide – chemical compound – CAS number 124389. ACGIH TLV = 5,000 ppm (9,000  mg/m3) TWA, 30,000 ppm (54,000 mg/m3) STEL; NIOSH REL 5,000 ppm (9,000 mg/m3) TWA, 30,000 ppm (54,000 mg/m3) STEL; NIOSH IDLH 40,000 ppm, OSHA PEL 10,000 ppm (9,000  mg/m3 TWA, 30,000 ppm (54,000 mg/m3) STEL; LEL nonflamable gas.

carbon disulfide – chemical compound – CAS number 75150. ACGIH TLV = 10 ppm (31  mg/m3) TWA,; NIOSH REL 1 ppm (3 mg/m3) TWA, 10 ppm (30 mg/m3) STEL; NIOSH IDLH 500 ppm, OSHA PEL 4 ppm (31  mg/m3 TWA, 12 ppm (36 mg/m3) STEL; LEL 1.3% (10% LEL, 1,300 ppm).

carbon monoxide – chemical compound – CAS number 630080. ACGIH TLV = 25 ppm (29 mg/m3) TWA; NIOSH REL 35 ppm (40 mg/m3) TWA, 200 ppm (229 mg/m3) Ceiling; NIOSH IDLH 1,200 ppm, OSHA PEL 35 ppm (40  mg/m3 TWA, 200 ppm (229 mg/m3) ceiling; LEL 12.5% (10% LEL, 12,500 ppm).

Carbon tetrachloride – chemical compound – CAS number 56235. ACGIH TLV = 5 ppm (31 mg/m3) TWA, 10 ppm, (63 mg/m3) STEL,A3; NIOSH REL 2 ppm (12.6 mg/m3) 60 minute STEL, potential occupational carcinogen; NIOSH IDLH 200 ppm, OSHA PEL 10 ppm TWA, 25 ppm  ceiling; LEL noncombustible liquid.

carbon tetrachloride (abbreviation: CTC; synonyms: perchloromethathane, methane tetrachloride, benzinoform, univerm, necatorina, facsiolin, fukoids, R10 refrigerant, tetraform, tetrasol, freon10, Halon 104) – organic chemical – (MCL = 0.005 mg/L).

carbon, inorganic total

carbonate CaCO3

carbonates  – natural mineral – (chemical formula: Ca, Mg, NaCO3).

carboniferous – geologic time, period – (synonym: comprises Pennsylvanian and Mississippian periods).

Carmel formation – geologic stratigraphic description –.

Carodoc series – geologic stratigraphic description –.

Casper College; Casper, WY (acronym: CasperC).

cassiterite — SnO2 — (oxide mineral).

Catholic (religious affiliations of institutions subscript: Ca ).

cavernous (abbreviation: cav).

celestite — SrSO4 — (sulfate mineral).

cemented (abbreviation: cmt).

cenozoic –  geologic time, era – (approximately 65 MYA to present).

CenterPointe – medical facility, mental & substance abuse; Lincoln, NE – (acronym, CP).

centi- –metric prefix – (symbol: c) = 0.01= 10-2.

cenozoic – geologic time period —  from present to 65 MYA.

centigram — unit of measure, weight —   (acronym: cg) = – 0.01 g.

centimeter — unit of measure, linear distance / length — (acronym: cm) = .01 m =0.3937 in.

Central College (Pella, IA) (acronym: CentralC).

Central Community College; Columbus, Grand Island, & Hastings, NE (acronym: CCC).

Central Lapland greenstone belt – geologic stratigraphic description –.

Central Wyoming College; Riverton, WY (acronym: CWC).

ceragyrite — AgCl — (halide mineral).

cerium — chemical element — (abbreviation: Ce).

Cerro Lisandro formation – geologic stratigraphic description –.

cerussite — PbCO3 — (carbonate mineral).

Chadron Community Hospital & Health Services – medical facility; Chadron, NE – (acronym, CCH&HS).

Chadron State College (Chadron, NE) (acronym: CSC).

chain — unit of measure, linear distance / length — = 0.0125 statute mi = 4 rod = 100 link = 66 ft.

chain of custody — a written or printed form which is used to document sample possession, condition and responsibility. This custody can include the time from sample container acquisition through transportation, sample collection and laboratory analysis.  Source: (ASTM, 2004).

chalcedony (abbreviation: chal).

chalcocite — Cu2S — (sulfide mineral).

chalcopyrite — CuFeS2 — (sulfide mineral).

Chalk formation – geologic stratigraphic description –.

Chase County Community Hospital – medical facility; Imperial, NE – (acronym, CCCH).

chemical abstract service (acronym: CAS).

chemical oxygen demand

chemical phases — the physical state of the chemical, (that is; solid, liquid, vapor/gaseous). A chemical’s physical state can change from the one phase to another based on its physical environment.  Source: (ASTM, 2004).

Cherry County Hospital – medical facility; Valentine, NE – (acronym, CCH).

Children’s Hospital – medical institution; Omaha, Nebraska – (acronym: CH).

Chinle formation – geologic stratigraphic description –.

Chitawata formation – geologic stratigraphic description –.

chlaramines (as Cl2) – disinfectant – (MRDL – 4.0 mg/L)

clay (abbreviation: C) — rock classification,  sedimentary — claystone.

clayey sand; (abbreviation: CS) — rock classification,  sedimentary — sandstone with clay.

chlordane – chemical compound – CAS number 57749. ACGIH TLV = 0.5 mg/m3 TWA; NIOSH REL 0.5 mg/m3 TWA, potential occupational carcinogen; NIOSH IDLH 100 ppm, OSHA PEL 0.5 mg/m3 TWA; LEL noncombustible liquid.

chlordane (synonyms: veliscol 1068, aspon-chlordane, belt, chloridan, chlor-kil, cortian-neu, dowchlor, oktachlor, oktaterr, synklor, tat chlor 4, topichlor, toxichlor, intox 8, gold crest c-100, kilex, kypchlor, niran, termi-ded, prenox, peniklor) – organic chemical – (MCL = 0.002 mg/L).

chloride

chloride

chlorinated camphene – chemical compound – CAS number 8001352. ACGIH TLV = 0.5 mg/m3 TWA, 1 mg/m3 STEL; NIOSH REL none, potential occupational carcinogen; NIOSH IDLH 200 mg/m3, OSHA PEL 0.5 mg/m3 TWA; LEL noncombustible solid.

chlorinated diphenyl oxide – chemical compound – CAS number 31242930. ACGIH TLV = 0.5 mg/m3 TWA; NIOSH REL 0.5 mg/m3 TWA; NIOSH IDLH 5 mg/m3, OSHA PEL 0.5 mg/m3 TWA; LEL unknown.

chlorine – chemical compound – CAS number 7782505. ACGIH TLV = 0.5 ppm (1.5 mg/m3) TWA, 1 ppm (3 mg/m3) STEL; NIOSH REL 0.5 ppm (1.45 mg/m3) 15 minute ceiling; NIOSH IDLH 10 ppm, OSHA PEL  0.5 ppm (1.5 mg/m3) TWA, 1 ppm (3 mg/m3) STEL; LEL nonflamable gas.

chlorine — chemical element — (abbreviation: Cl ).

chlorine (as Cl2) – disinfectant – (MRDL – 4.0 mg/L)

chlorine dioxide

chlorine dioxide – chemical compound – CAS number –. ACGIH TLV = — (– mg/m3) TWA,; NIOSH REL — ppm (– mg/m3) TWA; NIOSH IDLH 5 ppm, OSHA PEL  – ppm (– mg/m3) TWA; LEL –.

chlorine dioxide, as Cl02 – disinfectant – (MRDL – 0.80 mg/L)

chlorine trifluoride – chemical compound – CAS number 7790912. ACGIH TLV = 0.1 ppm (0.38 mg/m3) Ceiling; NIOSH REL 0.1 ppm (0.4 mg/m3) ceiling; NIOSH IDLH 20 ppm, OSHA PEL  0.1 ppm (0.4 mg/m3) TWA; LEL nonflamable gas.

chlorine, free

chlorine, total

chlorite – disinfection byproduct – (MCL – 1.0 mg/L).

chloroacetaldehyde – chemical compound – CAS number 107200. ACGIH TLV = 1 ppm (3.2 mg/m3) Ceiling; NIOSH REL 1 ppm (3.2 mg/m3) ceiling; NIOSH IDLH 45 ppm, OSHA PEL  1 ppm (3 mg/m3) TWA; LEL unknown.

chloroamine, mono

chlorobenzene – chemical compound – CAS number 108907. ACGIH TLV = 10 ppm (46 mg/m3) TWA; NIOSH REL The 1989 OSHA PEL may not be protective to workers; NIOSH IDLH 1,000 ppm, OSHA PEL 75 ppm (350 mg/m3) TWA; LEL 1.3% (10% LEL, 1,300 ppm).

chlorobenzene (synonyms: benzene chloride, chlorbenzol, monochlorobenzene, phenyl chloride, IP carrrier T 40, tetrosin SP) – organic chemical – (MCL = 0.1 mg/L).

chlorobromomethane – chemical compound – CAS number 74975. ACGIH TLV = 200 ppm (1,060 mg/m3) TWA; NIOSH REL 200 ppm (1,050 mg/m3) TWA; NIOSH IDLH 2,000 ppm, OSHA PEL  200 ppm (1,050 mg/m3) TWA; LEL noncombustible liquid.

chlorodiphenyl (42% chlorine) – chemical compound – CAS number 53469219. ACGIH TLV = 1 mg/m3 TWA; NIOSH REL 0.001 mg/m3 TWA potential occupational carcinogen; NIOSH IDLH 5 mg/m3, OSHA PEL  1 mg/m3 TWA; LEL noncombustible liquid.

chlorodiphenyl (54% chlorine) – chemical compound – CAS number 11097691. ACGIH TLV = 0.5 mg/m3 TWA; NIOSH REL 0.001 mg/m3 TWA potential occupational carcinogen; NIOSH IDLH 5 mg/m3, OSHA PEL  0.5 mg/m3 TWA; LEL noncombustible liquid.

chloroform – chemical compound – CAS number 67663. ACGIH TLV = 10 ppm  (49 mg/m3) TWA; NIOSH REL  2 ppm (9.78 mg/m3) 60 minute STEL, potential occupational carcinogen; NIOSH IDLH 500 ppm, OSHA PEL  2 ppm (9.78 mg/m3) TWA; LEL noncombustible liquid.

chloropicrin – chemical compound – CAS number 76062. ACGIH TLV = 0.1 ppm  (0.67 mg/m3) TWA; NIOSH REL  0.1 ppm (0.7 mg/m3) TWA; NIOSH IDLH 2 ppm, OSHA PEL  0.1 ppm (0.7 mg/m3) TWA; LEL noncombustible liquid.

chromic acid & chromates – chemical compound – CAS number 1333-82-0 (CrO3). ACGIH TLV =  0.05 mg/m3) TWA, A1; NIOSH REL  0.001 mg/m3 TWA; NIOSH IDLH 15 mg Cr (VI)/m3, OSHA PEL  0.1 mg/m3 ceiling; LEL unknown.

chromite  — (Mg,Fe)Cr2O4 — (oxide mineral).

chromium (abbreviation: Cr) — chemical element,  inorganic chemical – CAS number 7440473. ACGIH TLV =  0.5 mg/m3) TWA; NIOSH REL  0.5 mg/m3 TWA; NIOSH IDLH 250 mg Cr/m3, OSHA PEL  1 mg/m3 TWA; LEL unknown. (MCL = 0.1 mg/L, total).

chromium (II) compounds – chemical compound – CAS number varies. ACGIH TLV =  0.5 mg/m3) TWA; NIOSH REL  0.5 mg/m3 TWA; NIOSH IDLH 250 mg Cr (II)/m3, OSHA PEL  0.5 mg/m3 TWA; LEL unknown.

chromium (III) compounds – chemical compound – CAS number varies. ACGIH TLV =  0.5 mg/m3) TWA; NIOSH REL  0.5 mg/m3 TWA; NIOSH IDLH 25 mg Cr (II)/m3, OSHA PEL  0.5 mg/m3 TWA; LEL unknown.

chromium, hexavalent

chrysoberyl — BeAl2O4 — (oxide mineral).

Church of Christ (religious affiliations of institutions subscript: COC )

cinnabar — HgS — (sulfide mineral).

cis-1,2-dichloroethylene (acronym: C-1,2-DCE) – organic chemical – (MCL = 0.07 mg/L).

Clark College (Debuque, IA) (acronym: ClarkCCa).

Clarkson College; Omaha, NE (acronym: ClarksonCCa).

clay — unit of measure, grain size —

clayey gravels, gravel-sand clay mixtures – USCS soil classification – (symbol: GC).

clayey sands & sand clay-mixtures – USCS soil classification – (symbol: SC).

claystone (abbreviation: clst).

Clay-with flints – geologic stratigraphic description –.

closure assessment report (acronym: CAR).

Coal tar pitch volatiles – chemical compound – CAS number 65996932. ACGIH TLV =  0.2 mg/m3) TWA, A2; NIOSH REL  0.1 mg/m3 TWA, potential occupational carcinogen; NIOSH IDLH 80 mg/m3, OSHA PEL  0.2 mg/m3 TWA; LEL unknown.

coarse sand — unit of measure, grain size —

cobalt (abbreviation: Co). — chemical element – CAS number 7440484. ACGIH TLV =  0.05 mg/m3) TWA; NIOSH REL  0.05 mg/m3 TWA; NIOSH IDLH 20 mg/m3, OSHA PEL  0.1 mg/m3 TWA; LEL unknown.

cobaltite — CoAsS — (sulfide mineral).

cobble — unit of measure, grain size —

cobble (abbreviation: cbl).

Coconio sandstone – geologic stratigraphic description –.

COD

Code of Federal Regulations (acronym: CFR).

Coe College (Cedar Rapids, IA) (acronym: CoeC).

colemanite — Ca2B6O11●5H2O — (borate mineral).

College of Saint Mary; Omaha, NE (acronym: CSMCa).

Colo silty clay loam, 0-2 % slopes – USDA, SCS soil classification – (symbol: Co).

Colo-Nordaway silty clay loam, 0-2 % slopes – USDA, SCS soil classification – (symbol: Cp).

color, apparent

color, true

Columbus Community Hospital – medical facility; Columbus, NE – (acronym, CCH).

commercial real estate — any real property except a dwelling or property with no more than four dwelling units exclusively for residential use (except that a dwelling or property with no more than four dwelling units exclusively for residential use is included in this term when it has a commercial function, as in the building of such dwellings for profit).  This term includes but is not limited to undeveloped real property and real property used for industrial, retail, office, agricultural, other commercial, medical, or educational purposes; property used for residential purposes that has more than four residential dwelling units; and property with no more than four dwelling units for residential use when it has a commercial function, as in the building of such dwellings for profit.   Source (ASTM, 2004).

commercial real estate transaction — a transfer of title to or possession of real property or receipt of a security interest in real property, except that it does not include transfer of title to or possession of real property or the receipt of a security interest in real property with respect to an individual dwelling or building containing fewer than five dwelling units, nor does it include the purchase of a lot or lots to construct a dwelling for occupancy by a purchaser, but a commercial real estate transaction does include real property purchased or leased by persons or entities in the business of building or developing dwelling units.   Source (ASTM, 2004).

common law — as distinguished from law created by the enactment of legislatures, the common law comprises the body of those principles and rules of action, relating to the government and security of persons and property, which derive their authority solely from usages and customs of immemorial antiquity, or from the judgments and decrees of the courts recognizing, affirming and enforcing such usages and customs; and, in this sense, particularly the ancient unwritten law of England (Black’s Law Dictionary 250-251, 5th ed., 1979).  Source: (ASTM, 2004).

Community Hospital – medical facility; McCook, NE – (acronym, CH).

Community Medical Center – medical facility; Fall City, NE – (acronym, CMC).

Community Memorial Hospital – medical facility; Syracuse, NE – (acronym, CMH).

Community of Christ (religious affiliations of institutions subscript: COC2 ).

Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended, 42 USC § 9601 et seq. (acronym: CERCLA).

Comprehensive Environmental Response, Compensation, & Liability Act (acronym: CERCLA).

comprehensive environmental response, compensation, and liability information system (acronym: CERCLIS) —the list of sites compiled by EPA that EPA has investigated or is currently investigating for potential hazardous substance contamination for possible inclusion on the National Priorities List.  Source (ASTM, 2004).

compressed digital orthophoto quarter quadrangle (acronym: COQQ).

Concordia University (Seward, NE) (acronym: CUL(MS)).

conductivity

 

confidentiality & confidential disclosure agreement (acronym: CDA, synonm: non-disclosure agreements [NDAs]).

confirmed human carcinogen (symbol A1), ACGIH.

confined space entry permit (acronym: CSEP).

conglomerate (abbreviation: cgl).       

Coniston limestone – geologic stratigraphic description –.

Conservation & Survey Division, Nebraska (acronym: C&SD).

constituent of concern (acronym: COC).

construction debris —concrete, brick, asphalt, and other such building materials discarded in the construction of a building or other improvement to property.   Source (ASTM, 2004).

contact (abbreviation: cont ).

contaminated public wells —public wells used for drinking water that have been designated by a government entity as contaminated by toxic substances (for example, chlorinated solvents), or as having water unsafe to drink without treatment.   Source (ASTM, 2004).

Coon Creek formation – geologic stratigraphic description –.

copper (abbreviation: Cu) — chemical element; native element mineral, metal, inorganic chemical – (TT =1.3 mg/L) CAS number 7440508. ACGIH TLV =  1 mg/m3) TWA; NIOSH REL 1 mg/m3 TWA; NIOSH IDLH 100 mg/m3, OSHA PEL  1 mg/m3 TWA; LEL unknown.

copper fumes (abbreviation: Cu) — chemical element; native element mineral, metal, inorganic chemical – (TT =1.3 mg/L) CAS number 1317380. ACGIH TLV =  0.2 mg/m3) TWA; NIOSH REL 0.1 mg/m3 TWA; NIOSH IDLH 100 mg/m3, OSHA PEL  0.1 mg/m3 TWA; LEL unknown.

copyright (symbol: ©).

Corallian limestone – geologic stratigraphic description –.

cord — unit of measure, volume — 128 ft3 =3.625 m3.

cordierite — (Mg,Fe)2Al4(Si5O18) — (silicate mineral).

Cornell College (Mount Vernon, IA) (acronym: CornellCM).

CORRACTS list —list of hazardous waste treatment, storage, or disposal facilities and other RCRIS facilities (due to past interim status or storage of hazardous waste beyond 90 days) who have been notified by the U.S. Environmental Protection Agency to undertake corrective action under RCRA.   Source (ASTM, 2004).

Corton formations – geologic stratigraphic description –.

corundum — Al2O3 — (oxide mineral).

Cotton dust (raw) – chemical compound – see NIOSH

Cotwold stone – geologic stratigraphic description –.

course gravel — unit of measure, grain size —

course to medium sand — unit of measure, grain size —

covellite — CuS — (sulfide mineral).

Cozad Community Hospital – medical facility; Cozad, NE – (acronym, CCH).

Crag (r) herbicide – chemical compound – see NIOSH

Creighton Area Health Services – medical facility; Creighton, NE – (acronym, CAHS).

Creighton University (Omaha, NE) (acronym: CUCa).

Creosol (o, m, p isomers) – chemical compound – see NIOSH

cretaceous – Geologic Time, Period – (symbol: K, color: olive green) approximately 144 – 64 MYA; approximate duration: 71 MY.

Crete Area Medical Center – medical facility; Crete, NE – (acronym, CAMC).

Crete silt loam, 0-2 % slopes – USDA, SCS soil classification – (symbol: Ct).

Crete silt loam, terrace, 0-1 % slopes – USDA, SCS soil classification – (symbol: Cr).

Crete silty clay loam, terrace, 0-3 % slopes – USDA, SCS soil classification – (symbol: CrB).

Crete silty clay loam, terrace, 3-6 % slopes – USDA, SCS soil classification – (symbol: CrC).

Crete Variant silty clay loam, terrace, 1-4 % slopes – USDA, SCS soil classification – (symbol: CsB).

crocoite — Pb(CrO4) — (chromate mineral).

cross-bedded (abbreviation: xbdd).

cross-bedding (abbreviation: xbdg).

cross-laminated (abbreviation: xlam).

Crotonaldehyde – chemical compound – see NIOSH

cryolite — Na3AlF6 — (alumino-fluoride mineral).

cryptoporidium (TT = 99% removal requirement).

crystal (abbreviation: xl).

crystalline (abbreviation: xln).

cubic centimeter — unit of measure, volume —  (symbol: cm3) = 1000 mm3 = 0.06102 in3.

cubic decimeter — unit of measure, volume —  (symbol: dm3)= 1000 cm3 = 61.02 in3.

cubic feet — unit of measure, volume — (symbol: ft3) = 1728 in3 = 0.02832 m3.

cubic inches — unit of measure, volume — (symbol: in3) = 16.39 cm3.

cubic meter  — unit of measure, volume — (symbol: m3) (syn. stere) = 1000 dm3 = 35.31 ft3 = 1.308 yd3.

cubic yards — unit of measure, volume — (symbol: yd3) = 27 ft3 = 0.7646 m3.

culumbite — (Fe,Mn)(Nb,Ta)2 O6 — (oxide mineral).

Cumene – chemical compound – see NIOSH

cuprite — Cu2O — (oxide mineral).

curium — chemical element — (abbreviation: Cm).

Cutler formation – geologic stratigraphic description –.

Cuttings — soil, rock chips, fragments or other material that is brought to the surface by drilling or sampling, or both.

cyanide, as free cyanide — chemical element,  inorganic chemical (MCL = 0.2 mg/L).

Cyanides (as Cn) – chemical compound – see NIOSH

cyanuric acid

Cyclohexane – chemical compound – see NIOSH

Cyclohexanol – chemical compound – see NIOSH

Cyclohexanone – chemical compound – see NIOSH

Cyclohexene – chemical compound – see NIOSH

Cyclopentadiene – chemical compound – see NIOSH

Cyclopentadine – chemical compound – see NIOSH

 

 

 

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