Post on 10-Oct-2020
… and how they affect your Utility
August 1, 2012
New Regulations
New Regulations Overview
• New Drinking Water regulations – Federal Regulatory Updates – State Rules
• Groundwater and Sanitary Survey Rules • Construction Site Stormwater
– Enhanced Compliance (Toll Bros. case) – Federal Rule
• CWA Section 404 Nationwide Permits
Federal Drinking Water Regs • Total Coliform Rule Revisions (expected summer
2012) – Systems with distribution system coliform positive in the
distribution system – Requires system to assess the problem and
take corrective action • Chromium VI
– Current MCL is for total Chromium only – US EPA evaluating whether to set a specific MCL for
Chrome 6 • Perchlorate
– Naturally occurring and man-made chemical – Used to produce rocket fuel, fireworks, flares and
explosives. Also in bleach and some fertilizers – US EPA evaluating new MCL
State Regulations
• Cross Connection Control (11/1/2012) – Incorporates "Manual of Cross Connection
Control“ (USC, 2009) by reference – Incorporates "List of Approved Backflow
Prevention Assemblies“ (USC, 2010) – Requires device testing once per year
• Stage 2 D/DBP Revisions (1/1/2013) – Affects small Groundwater systems (500-9,999) – Monitoring required for both TTHM and HAA5 – Monitoring twice annually
State Regulations (Con’t)
• Chloride/Sulfate Water Quality Standards – Seeks to adjust State WQS for chloride and
sulfate – New standards will be based on hardness of
water – Final Adoption set for 8/1/2012
• Lake Nutrients – Adds new numerical criteria to protect lakes – Focus on total phosphorous – Still in 1st Notice stage
Groundwater Rule
• Effective December 1, 2009 • Demonstration of 4-log inactivation of
viruses • Conduct “Triggered Source Water
Monitoring” following total coliform positive • Treatment may be required, if
– Significant deficiencies identified (Sanitary Survey)
– Has source water fecal contamination
Sanitary Surveys (327 IAC 8-2-8.2)
• Effective December 1, 2009 • IDEM conducts:
– Every 3 years (Community Water Systems) • May extend to every 5 years
– Every 5 years (Non-community systems) • Defines deficiencies for components of
system – Source(s), Treatment, Distribution and
Transmission, Storage, Pumping, and Management and Operations
Sanitary Survey Rule (Con’t)
• Significant Deficiencies – Deficiencies or other conditions with potential to
cause immediate risk to human health – Deficiency not corrected from previous sanitary
survey – Deficiency under corrective action schedule
• Responses to Deficiencies – 30 days from receipt of report – Deficiency is controlled by system – Identify how system will address – Identify a schedule for corrective action
Sanitary Survey: Source of Supply
• Deficiencies – Raw water quality indicates sanitary risk – Sanitary Setbacks
• Pollution sources • System doesn’t own or control
– Uncovered unsealed reservoirs with no treatment
– Failure to prevent unauthorized access – Well location (flooding or contamination) – Improper construction/maintenance
Sanitary Setback Area
• 200-foot (standard), may be adjusted to 100-foot, if: – Possess 4-log virus inactivation, or – Favorable hydrogeologic conditions
• Conditions: – No Potential Sources of Contamination – Owned or controlled by PWS – No commercial roads, railroads – Adjacent wells – Un-used wells to be abandoned – No Sanitary/Storm Sewers
100’
Proposed Well Old Well
Property Line
Well Security
• Fencing • Well Houses • Locks • Steel Doors • Cameras • Daily Inspections
Well Security Examples
Improper Construction
• Deficiency noted if Well is “Improperly Constructed”. Required Components: – Smooth-nose sample spigots – Flood Protection – Vents – Water Level Monitoring Access – Valves – Flow Metering
Well Construction
• Sample Spigots – Required for Raw
Water Sampling – Smooth nose
(outlet) to minimize bacteria
– Upstream valve to prevent freezing
Well Construction (Con’t)
• Flood Protection – Top of Well Casing Must be [327 IAC 8-3.4-16(a)(5)]: – 3-feet above 100-year flood elevation, and – 18-inches above finished grade, and – 12-inches above pump house floor.
• Public Water Supply Wells must be at
least 25-feet from a surface water body.
Well Construction (Con’t)
• Vents – Required to allow
air escape – Vent outlet must be
screened to prevent bugs, rodents, etc.
– Must penetrate casing or through pump head
Well Construction (Con’t)
• Monitoring Access – Access to measure
water levels – Through pump
head or separate steel tube
– Poly tubing taped to column (prevents “bowl food”)
Well Construction (Con’t) • Other Design Issues
– Valves • Check Valves • Air Release Valves • Isolation Valves (Gate or Butterfly) • Drain-back
• Meters – Metering required (Individual wells or Collectively) – Various Types
• Magmeter (full-body) • Magmeter (inserts) • Propeller • Venturi
Other Items
• Inspection/repair items are included specifically – Cracked casing – Missing well cap
• Records – Well Log – Pump Installation Report – Well Maintenance Records
• Wellhead Protection Plan
Other Regulations
• Construction Site Stormwater (Rule 5) – US EPA adopted new General Permit for
Construction Site stormwater on 2/16/2012 – Indiana General Permit (Rule 5) is still in
effect (for now) • Applies to land disturbing activities >1-acre • Notice of Intent submittal to IDEM • Prepare Storm Water Pollution Prevention Plan
(SWPPP) – Does not include effluent limitations
Other Regulations (Con’t)
• Construction Site Stormwater – Enhanced Compliance Anticipated – Recent Enforcement Case
• Toll Brothers (large/Nationwide homebuilder) • Over 600 violations of general permits issued by
USEPA, Maryland and Virginia • Penalty = $741,000 • Develop company-wide stormwater compliance
program • Required to inspect its current and future
construction sites routinely
Other Regulations (Con’t)
• Construction Site Stormwater requirements: – Sediment and erosion controls – Natural buffers or alternative controls – Soil stabilization – Pollution prevention – Site inspections
• Every 7 calendar days • Every 14 calendar days and within 24-hours of storm
event (0.25-inches or greater) • Complete inspection report with 24 hours of inspection
– Corrective action – within 7 calendar days of discovery
Other Regulations (Con’t)
• Construction Site Stormwater – Inspections – Conducted by project (contractor or owner)
staff or third party – Must be a “Qualified Person” – Rule specifies where inspections are to be
conducted and what is to be inspected – Inspection reports to be maintained for 3-
years – EPA or State may conduct separate
inspections
Other Regulations (Con’t)
• New Section 404 Nationwide Permits – Nationwide 12 (Utility Line Activities)
• No notification if project affects <0.5 acre
– Has IDEM Issued 401 Water Quality Certification • Must notify IDEM 30-days prior to construction • Cannot permanently impact >0.1 acre or >300 LF
(includes secondary effects – dams, dredging, etc.) • Must provide at least 3-feet of cover over line • No exposed in-stream stabilization
– If conditions cannot be met, Individual 401 required
Questions? Contact Information: Paul Johnson, LPG pjohnson@structurepoint.com American Structurepoint 7260 Shadeland Station Indianapolis, IN 46256 (317) 547-5580