Groundwater Quality Rules

250-RICR-150-05-3 ACTIVE RULE

New changes for this rule will be effective on 12/28/2023. View Details
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3.3Liberal Application



3.6Incorporated Materials


3.8Prohibitions and Other General Requirements

3.9Groundwater Classification

3.10Modification of Groundwater Classification

3.11Groundwater Quality Standards and Preventive Action Limits

3.12Determination of Compliance with Groundwater Quality Standards and Preventive Action Limits

3.13Notification to DEM of Violations of Preventive Action Limits and Groundwater Quality Standards

3.14Facility Owner or Operator Responses to Violations of Preventive Action Limits and Groundwater Quality Standards

3.15Groundwater Remediation

3.16Wellhead Protection




3.20Superseded Regulations


3.22Construction Standards for Monitoring Wells and Abandonment Procedures for Private Drinking Water Wells, Monitoring Wells, Piezometers and Other Subsurface Borings

3.23Groundwater Classification Map

3.24Wellhead Protection Area Map

Title 250 Department of Environmental Management
Chapter 150 Water Resources
Subchapter 05 Water Quality
Part 3 Groundwater Quality Rules
Type of Filing Periodic Refile
Regulation Status Active
Effective 01/04/2022 to 12/28/2023

Regulation Authority:

R.I. Gen. Laws Chapter 46-12
R.I. Gen. Laws Chapter 46-13.1
R.I. Gen. Laws Chapter 23-18.9
R.I. Gen. Laws Chapter 23-19.1
R.I. Gen. Laws Chapter 42-17.1
R.I. Gen. Laws Chapter 42-17.6
R.I. Gen. Laws Chapter 42-35

Purpose and Reason:

This rule is being refiled by the agency pursuant to R.I. Gen. Laws § 42-35-4.1. No changes were made to the text of this rule.