- H -

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

— H —

hadean – geologic time, era – (approximately 4,500-3,800 MYA).

hafnium — chemical element — (abbreviation: Hf).

Haharaishi University of Management (Fairfield, IA) (acronym: HUM).

halfnium compounds (as Hf) – chemical compound – see NIOSH

halite — NaCl — (halide mineral); (syn. Rock Salt).

haloacetic acids (abbreviation HAA5) – disinfection byproduct – (MCL – 0.060 mg/L)

Hamilton College (Council Bluffs, Des Moines, Mason City, Cedar Rapids, Cedar Falls, IA & Lincoln, & Omaha, NE) (acronym: HamiltonC).

hand — unit of measure, linear distance / length — = 4” = 10.16 cm.

hardness

hardness, total

Hargis + Associates, Inc. (acronym: H+A).

Harlan County Health System – medical facility; Alma, NE – (acronym, HCHS).

Harrodsburg limestone – geologic stratigraphic description –.

hassium — chemical element — (abbreviation: Hs).

Hastings College (Hastings, NE) (acronym: HC).

hazardous substance —A substance defined as a hazardous substance pursuant to CERCLA 42 USC§ 9601(14), as interpreted by EPA regulations and the courts:“ (A) any substance designated pursuant to section 1321(b)(2)(A) of Title 33, (B) any element, compound, mixture, solution, or substance designated pursuant to section 9602 of this title, (C) any hazardous waste having the characteristics identified under or listed pursuant to section 3001 of the SolidWaste Disposal Act (42 USC § 6921) (but not including any waste the regulation of which under the Solid Waste Disposal Act (42 USC§ 6901 et seq.) has been suspended by Act of Congress), (D) any toxic pollutant listed under section 1317(a) of Title 33, (E) any hazardous air pollutant listed under section 112 of the Clean Air Act (42 USC § 7412), and (F) any imminently hazardous chemical substance or mixture with respect to which the Administrator (of EPA) has taken action pursuant to section 2606 of Title 15. The term does not include petroleum, including crude oil or any fraction thereof which is not otherwise specifically listed or designated as a hazardous substance under subparagraphs (A) through (F) of this paragraph, and the term does not include natural gas, natural gas liquids, liquefied natural gas, or synthetic gas usable for fuel (or mixtures of natural gas and such synthetic gas)”.   Source (ASTM, 2004).

hazardous waste —any hazardous waste having the characteristics identified under or listed pursuant to section 3001 of the SolidWaste Disposal Act (42 USC § 6921) (but not including any waste the regulation of which under the Solid Waste Disposal Act (42 USC § 6901 et seq.) has been suspended by Act of Congress). The Solid Waste Disposal Act of 1980 amended RCRA. RCRA defines a hazardous waste, in 42 USC § 6903, as: “a solid waste, or combination of solid wastes, which because of its quantity, concentration, or physical, chemical, or infectious characteristics may—(A) cause, or significantly contribute to an increase in mortality or an increase in serious irreversible, or incapacitating reversible, illness; or (B) pose a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported, or disposed of, or otherwise managed”.   Source (ASTM, 2004).

hazardous waste operations & emergency response (acronym: HazWOpER).

hazardous waste treatment, storage or disposal facility; (acronym: TSDF ).

hazardous waste/contaminated sites — sites on which a release has occurred, or is suspected to have occurred, of any hazardous substance, hazardous waste, or petroleum products, and that release or suspected release has been reported to a government entity.   Source (ASTM, 2004).

health & safety plan (acronym: H&SP).

heavy metals –  antimony, arsenic, copper, cadmium, lead, mercury, bismuth, silver, tin, molybdenum; used in herbal, dietary supplement, and botanical products.

hecktometer — unit of measure, linear distance / length — = 100 m = 109.4 yd.

hecto- –metric prefix – = 100= 10².

hectogram — unit of measure, weight —   (accronym: ) = 100g = 3.527 oz.

hedenbergite — CaFe(Si₂O₆) — (silicate mineral).

Hedville sandy loam, 6-30 % slopes – USDA, SCS soil classification – (symbol: HeF).

helium — chemical element — (abbreviation: He).

Hell Creek formation – geologic stratigraphic description –.

hematitc (abbreviation: hem).

hematite — Fe₂O₃ — (oxide mineral); (syn. Iron Oxide, Rust).

Henderson Health Care Services, Inc. – medical facility; Henderson, NE – (acronym, HHCS).

heptachlor – chemical compound – see NIOSH

heptachlor – organic chemical – (MCL = 0.0004 mg/L).

heptachlor (synonyms:  aahepta, agroceres, hepta, heptachlordane, heptagran, peptamul, heptox, gold crest H-60, rhodiachlor, veliscol 140, basaklor, soeptax, termide) – organic chemical – (MCL = 0.000,4 mg/L).

heptachlor epoxide (acronym: HCE) – organic chemical – (MCL = 0.000,2 mg/L).

Hertfordshire puddingstone – geologic stratigraphic description –.

heterophoic plate count (TT = 500 bacterial colonies per mililiter).

hexachlorobenzene (acronym: HCB; synonyms:  hexa CB, phenol perchloryl, perchlorobenzene, anitcarie, blunt-care, co-op hexa, julian’s caron chloride, no bunt 40, no bunt 80, sanocide, snieciotox, smut-go, granox nm, voronit C) – organic chemical – (MCL = 0.001 mg/L).

hexachlorocyclopentadiene (abbreviation: HEX synonym: hexachlorpentadiene) – organic chemical – (MCL = 0.05 mg/L).

hexachloroethane – chemical compound – see NIOSH

hexachloronapthalene – chemical compound – see NIOSH

hexone – chemical compound – see NIOSH

high—Al₂O₃ basalt — rock classification, igneous — volcanic rock. 

historical recognized environmental condition — environmental condition which in the past would have been considered a recognized environmental condition, but which may or may not be considered a recognized environmental condition currently. The final decision rests with the environmental professional and will be influenced by the current impact of the historical recognized environmental condition on the property. If a past release of any hazardous substances or petroleum products has occurred in connection with the property and has been remediated, with such remediation accepted by the responsible regulatory agency (for example, as evidenced by the issuance of a no further action letter or equivalent), this condition shall be considered an historical recognized environmental condition and included in the findings section of the Phase I Environmental Site Assessment report. The environmental professional shall provide an opinion of the current impact on the property of this historical recognized environmental condition in the opinion section of the report. If this historical recognized environmental condition is determined to be a recognized environmental condition at the time the Phase I Environmental Site Assessment is conducted, the condition shall be identified as such and listed in the conclusions section of the report.   Source (ASTM, 2004).

hot work permit (acronym: HWP).

holmium — chemical element — (abbreviation: Ho).

holocene – geologic time, epoch – (approximately 10,000 YA to today; approximate duration: 0.01 MY).

Homestake Mining Company (acronym: HMC).

horizontal (abbreviation: horiz).

hornblende — Na,Ca₂(Mg,Fe,Al)₅(OH)₂(Si,Al)₈O₂₂ — (silicate mineral).

hornblende (abbreviation: hbl).

hornfels (abbreviations: hflsHor)  — rock classification, metamorphic   —

Horshoe Canyon formation – geologic stratigraphic description –.

hour — unit of measure, time — (abbreviation: hr) = 365 days.

Howard County Community Hospital – medical facility; St. Paul, NE – (acronym, HCCH).

huebnerite — MnWO₄ — (tungstate mineral).

Hunicul formation – geologic stratigraphic description –.

hydrazine

hydrazine – chemical compound – see NIOSH

hydrocarbon gasses

hydrogen — chemical element — (abbreviation: H).

hydrogen bromide – chemical compound – see NIOSH

hydrogen chloride – chemical compound – see NIOSH

hydrogen cyanide – chemical compound – see NIOSH

hydrogen fluoride (as F) – chemical compound – see NIOSH

hydrogen peroxide – chemical compound – see NIOSH

hydrogen selenide (as Se) – chemical compound – see NIOSH

hydrogen sulfide – chemical compound – see NIOSH

hydroquinone – chemical compound – see NIOSH