OAR 333-061-0075
Sanitary Surveys of Watersheds

(1)

In water systems utilizing surface water sources or groundwater sources under the direct influence of surface water that do not provide filtration treatment, the water supplier shall conduct sanitary surveys of the watershed as deemed necessary by the water system to meet the requirements of OAR 333-061-0032 (Treatment Requirements and Performance Standards for Surface Water, Groundwater Under Direct Influence of Surface Water, and Groundwater)(2)(b)(B). The results of the watershed survey will be reviewed by the Authority during the annual on-site inspection required by OAR 333-061-0032 (Treatment Requirements and Performance Standards for Surface Water, Groundwater Under Direct Influence of Surface Water, and Groundwater)(2)(b)(C). The Authority recommends that systems which do provide filtration treatment for surface water sources or groundwater sources under the direct influence of surface water also conduct annual sanitary surveys of the watershed.

(2)

The survey shall include but not be limited to, an evaluation of the following man made and natural features in the watershed and their effect on water quality:

(a)

Nature of and condition of dams, impoundments, intake facilities, diversion works, screens, disinfection equipment, perimeter fences, signs, gates;

(b)

Nature of surface geology, character of soils, presence of slides, character of vegetation and forests, animal population, amounts of precipitation;

(c)

Nature of human activities, extent of cultivated and grazing land, zoning restrictions, extent of human habitation, logging activities, method of sewage disposal, proximity of fecal contamination to intake, recreational activities and measures to control activities in the watershed;

(d)

Nature of raw water, level of coliform organisms, vulnerability assessments of potential contaminants, algae, turbidity, color, mineral constituents, detention time in reservoir, time required for flow from sources of contamination to intake;

(e)

Type and effectiveness of measures to control contamination, and algae, disinfection applications and residuals carried, monitoring practices, patrol of borders.

(3)

A report on the findings of the survey shall be submitted annually to the Authority as required by OAR 333-061-0040 (Reporting and Record Keeping)(1).

(4)

The Authority recommends using the guidelines in the US EPA Guidance Manual for Compliance with the Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources to construct an effective watershed control management plan. A list of additional references recommended by the Authority is available upon request.
[Publications: Publications referenced are available from the agency.]

Source: Rule 333-061-0075 — Sanitary Surveys of Watersheds, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=333-061-0075.

333‑061‑0005
Purpose 333‑061‑0010
Scope 333‑061‑0015
Adoption by Reference 333‑061‑0020
Definitions 333‑061‑0025
Responsibilities of Water Suppliers 333‑061‑0030
Maximum Contaminant Levels and Action Levels 333‑061‑0031
Maximum Residual Disinfectant Levels 333‑061‑0032
Treatment Requirements and Performance Standards for Surface Water, Groundwater Under Direct Influence of Surface Water, and Groundwater 333‑061‑0034
Treatment Requirements and Performance Standards for Corrosion Control 333‑061‑0036
Sampling and Analytical Requirements 333‑061‑0040
Reporting and Record Keeping 333‑061‑0042
Public Notice 333‑061‑0043
Consumer Confidence Reports 333‑061‑0045
Variances 333‑061‑0046
Permits 333‑061‑0050
Construction Standards 333‑061‑0055
Waivers from Construction Standards 333‑061‑0057
Voluntary Drinking Water Protection Program 333‑061‑0060
Plan Submission and Review Requirements 333‑061‑0061
Capacity Requirements for Public Water Systems 333‑061‑0062
Land Use Coordination 333‑061‑0063
Environmental Review Process for The Safe Drinking Water Revolving Loan Fund Program 333‑061‑0064
Emergency Response Plan Requirements 333‑061‑0065
Operation and Maintenance 333‑061‑0070
Cross Connection Control Requirements 333‑061‑0071
Backflow Prevention Assembly Installation and Operation Standards 333‑061‑0072
Backflow Assembly Tester Certification 333‑061‑0073
Cross Connection Specialist Certification 333‑061‑0074
Cross Connection Training Programs, Course, and Instructor Requirements 333‑061‑0075
Sanitary Surveys of Watersheds 333‑061‑0076
Sanitary Surveys 333‑061‑0077
Composite Correction Program & Comprehensive Performance Evaluations 333‑061‑0078
Coliform Investigations 333‑061‑0080
Role of Counties 333‑061‑0085
Supplemental Fluoridation 333‑061‑0087
Product Acceptability Criteria 333‑061‑0089
Annual Water System Fee 333‑061‑0090
Penalties 333‑061‑0095
Severability 333‑061‑0097
Adverse Health Effects Language 333‑061‑0098
References 333‑061‑0210
Operator Certification: Scope 333‑061‑0220
Classification of Water Treatment Plants and Water Distribution Systems 333‑061‑0225
General Requirements Applying to Water Suppliers and Water Systems 333‑061‑0228
Certification Requirements for Small Water System Operators 333‑061‑0230
Contracting For Services 333‑061‑0232
General Requirements Applying to Water System Operators 333‑061‑0235
Operator Certification Requirements, Levels 1–4 333‑061‑0245
Applications for Certification Levels 1–4 333‑061‑0250
Examinations for Certification, Levels 1–4 333‑061‑0260
Certificate Renewal Levels 1–4 333‑061‑0265
Fees 333‑061‑0270
Refusal, Suspension, or Revocation of Certification 333‑061‑0272
Suspension of Certification 333‑061‑0305
Domestic Well Program: Purpose 333‑061‑0310
Scope 333‑061‑0324
Area of Public Health Concern 333‑061‑0325
Domestic Well Tests 333‑061‑0330
Accredited Laboratories 333‑061‑0335
Sample Collection 333‑061‑0400
Reducing Lead in School Drinking Water 333‑061‑0510
Applicability of Cyanotoxin Rules 333‑061‑0520
Definitions 333‑061‑0530
Health Advisory Levels 333‑061‑0540
Cyanotoxin Monitoring 333‑061‑0550
Analytical Methods 333‑061‑0560
Reporting 333‑061‑0570
Public Notification 333‑061‑0580
Record Keeping
Last Updated

Jun. 8, 2021

Rule 333-061-0075’s source at or​.us