HomeMy WebLinkAboutJOHNSON PROPERTY REZONE - 32-01 - CORRESPONDENCE - CITY STAFFCDPHE-6UCD Fax:3037820390 Sep 13 2001 13:37
Setbacks from Domestic Wastewater Treatment
Works to Habitable Structures
Page 2
ON
At the time of site application action by the
Division, habitable structures shall not exist
within the prescribed distances unless mitigating
factors have been approved by the Division.
Habitable structures shall include residences,
schools, and commercial structures. It shall be
a condition of site approvals that the applicant
shall be responsible for maintaining the appropriate
separation distance for the life of the project.
Background: Opposition by neighboring residents to the
construction of wastewater treatment facilities
has drawn.attention to the Division's lack of
consistency in applying previous distance guidelines.
Reference: Regulations for Site Application for Domestic
Wastewater Treatment Works, 2.2.3(2)(6), 2.2.4(8),
and 2.2.5(l)(f).
Sep 13 2001 13:36 P.02
Colorado Water Quality Control Division
WATER QUAunr
• •'
Policy No.: WQ5 P
7
Initiated By.
Approved B
Effective Date:
Revision No -
Policies & Procedures Revision Date:
SETBACKS FROM DOMESTIC WASTEWATER TREATMENT
WORKS TO HABITABLE STRUCTURES
Purpose: 1. To minimize the potential for the airborne
transmission of pathogens from wastewater
treatment facilities to the occupants of
habitable structures and for. odor complaints
about the facilities by the occupants of those
habitable structures;
2. To reduce the likelihood of public nuisance
actions -stemming from odor complaints; and
3. To reduce opposition by neighboring property
owners to proposed wastewater treatment facility
construction.
Policy/
Procedures: Minimum horizontal distances shall be maintained
between habitable structures and new or expanded
wastewater treatment facilities. Unless specific
mitigating factors exist, or are proposed, to counter
the potential for odor problems and/or aerosol drift,
the following distances shall be considered the minimum
acceptable for site application purposes;
1. Non -aerated lagoons, 1/4 mile, no exceptions..
2.. Aerated lagoons less than 2 total surface
acres with no surface aeration, 100 feet.
3. Aerated lagoons greater than 2 total surface
acres and/or with surface aeration, 1000 feet,
or with established vegetation barrier to
reduce aerosol drift, 500 feet.
4. Small mechanical plants less than 100,000 gpd
capacity and all facilities with building
enclosure, 100 feet.
5. All other mechanical plants, 1000 feet.
Troy Jones -Odor Buffer � � a�Page 1
From: Brian Janonis
To: W. Paul Eckman
Date: Thu, Sep 13, 2001 4:14 PM
Subject: Odor Buffer
Paul- The attached Site Application Policy from the Colorado Water Quality Control Division calls for 1000
ft setback from wastewater treatment works to habitable structures. Our planned expansion at the Drake
Facility (DWRF) will require a site application.
I just learned that we have been trying to buy the land from the Johnson's since the 1970's. I have
directed Cliff Hoelscher to actively pusue a written option for the premix batch plant next to DWRF.
This policy will also impact other property around our facilities so I would appreciate working with the City
Attorneys Office & Planning to avoid future problems.
CC: Gregory Byrne; John Fischbach; Steve Comstock; ...