OAR 340-040-0105
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Definitions


Unless otherwise defined in OAR 340-041-0006 or 340-040-0010 (Definitions), the following terms used in this division shall mean:

(1)

“Carcinogen”: A compound which the United States Environmental Protection Agency has classified as Group A or Group B under the carcinogenic classification procedures described in 51 Fed. Reg. 33992.

(2)

“Confirmed or Confirmation”: A second laboratory quantitatively detects the presence of the contaminant or substance of concern in groundwater by an established sampling, preservation, and analytical technique in a laboratory using established quality assurance and quality control procedures, such as indicated in 40 CFR 136 or the Standard Methods for Examination of Water and Waste Water (Latest Edition).

(3)

“Contaminant”: Any chemical, ion, radionuclide, synthetic organic compound, microorganism, waste or other substance that does not occur naturally in groundwater or that occurs naturally but at a lower concentration. ORS 468.691.

(4)

“Detect, Detectable, Detection or Detected”: To measure a contaminant by an established sampling, preservation, and analytical technique in a laboratory using established quality assurance and quality control procedures, such as indicated in 40 CFR 136 or the Standard Methods for Examination of Water and Waste Water (Latest Edition).

(5)

“Environment”: The aggregate of things or conditions affecting the existence, reproduction, growth and development of living organisms, plus the living organisms themselves. The concept shall be interpreted broadly to mean “all aspects of an ecosystem, other than humans.”

(6)

“Federal Standard”: A maximum contaminant level, a national primary drinking water regulation or an interim drinking water regulation adopted by the Administrator of the United States Environmental Protection Agency (“EPA”) pursuant to the federal Safe Drinking Water Act. ORS 536.137.

(7)

“Maximum Measurable Level”: The maximum allowable concentration of a contaminant or substance of concern that is established by the Commission in accord with these rules, to be used by the Department to initiate the process of designating “Groundwater Management Areas” within the state of Oregon where necessary to preserve groundwater quality. ORS 468.691.

(8)

“Protect Public Health and the Environment”: To keep humans and the environment from unreasonable present or future exposure to adverse risk, effect or harm, excluding economic concerns.

(9)

“Substance of Concern”: A contaminant confirmed in groundwater in Oregon as a result of actual or suspected nonpoint source activities.
[Publications: Publications referenced are available from the agency.]

Source: Rule 340-040-0105 — Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Definitions, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=340-040-0105.

340‑040‑0001
Preface
340‑040‑0010
Definitions
340‑040‑0020
General Policies
340‑040‑0030
Permitted Operations
340‑040‑0040
Remedial Investigation and Feasibility Study
340‑040‑0050
Selection of the Remedial Action
340‑040‑0060
Non-Permitted Activities
340‑040‑0070
On-Site Sewage Disposal: Area Wide Management
340‑040‑0080
Numerical Groundwater Quality Reference Levels and Guidance Levels
340‑040‑0090
Interim Standards for Maximum Measurable Levels of Contaminants in Groundwater to be Used in the Designation of a Groundwater Management Area
340‑040‑0100
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Statement of Purpose
340‑040‑0105
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Definitions
340‑040‑0108
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: General Policies
340‑040‑0110
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Substances Regulated Under These Rules
340‑040‑0120
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Notice of Intent to Propose Contaminants for Adoption of a Maximum Measurable Level
340‑040‑0125
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Methods to Establish Maximum Measurable Levels
340‑040‑0130
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Human Health and Environmental Advisories
340‑040‑0135
Method and Criteria for Establishment of Maximum Measurable Levels of Contaminants in Groundwater: Modification to the Maximum Measurable Level
340‑040‑0140
Wellhead Protection: Statement of Purpose
340‑040‑0150
Wellhead Protection: Definitions
340‑040‑0160
Wellhead Protection: General Policies
340‑040‑0170
Wellhead Protection: Required Elements of A Wellhead Protection Plan
340‑040‑0180
Wellhead Protection: Certification Procedure
340‑040‑0190
Wellhead Protection: Update Procedure
340‑040‑0200
Wellhead Protection: Decertification Procedure
340‑040‑0210
Wellhead Protection: Appeal Procedure
Last Updated

Jun. 8, 2021

Rule 340-040-0105’s source at or​.us