Stormwater Erosion - Laserfiche WebLink

New Search

MEDLIN Johnny R From: BINGHAM Tim S To: LONG Jack E; MEDLIN Johnny R; ARGENTINA Eileen; FERGUSON Joe M; CAHILL Michelle R; KLOPE Paul W; LANKSTON Jeff; OSBORN Keli M; JACOBSON Jerry P; GASSMAN Dick L Cc: EVANS Deborah S; OLLEK Dal S; ALVERSON Ed R; MCLAUGHLIN Jim T; LYLE Les A; KROECK Louis G; PULLIAM Pamela J; Reininga, Krista (IN) Subject: Review -of Draft Sensitive Areas Map • Date: Tuesday, October 10, 1995 5:20PM The purpose of this note is to explain the Draft Sensitive Areas map that was recently delivered to you. This map is a draft and before presenting it to the public we'd like your team to review and comment on its accuracy. Pis send any comments to me by Oct 18th. This map is part of the City's proposed program for addressing impacts associated with construction activities (erosion, sedimentation, & other impacts related impacts such as concrete washout, storage of toxics, etc). A public outreach effort will occur Nov -Dec with public hearings tentatively scheduled for Jan or Feb. Discussions around staff resource implications are underway. BACKGROUND: One of the stormwater progam BMPs is to address the discharge of pollutants during construction activities. Impacts of concern include erosion, sedimentation, and other associated with construction "housekeeping" activities (e.g., storage of toxics, debris, concrete washout). The Stormwater Dept Advisory Committee (DAC) recommends the flwg: 1) All new and significant redevelopment are required to manage "Construction Site Management Practices" during construction activities. Note: There are approximately 6,700 vacant parcels (14,700 acres) w/n Eugene's city limits and ugb. Of these, 500 are > 5 acres in size (11,200 acres) and 6,200 are equal to or < 5 acres in size (3,455 acres). Of the 6,200 vacant parcels (< 5 acres), 3,150 (2,140 acres) are w/n sensitive areas. This data reflects the removal of publicly owned and vacant land. 2) Permit Requirement. For sites > 5 acres is size and for sites that are equal to or <5acres and w/n "sensitive areas ", a stormwater pollution prevention permit will be required. This permit requires the preparation of a pollution prevention plan that is to be reviewed and approved by the City. Permit fee will be collected. 3) Checklist. For all other development conditons (sites equal to or < 5 acres and NOT w/n a sensitive area), a checklist system will be used. This means a permit and plan will NOT be required. At time of issuance of a building permit, the applicant must review and acknowledge (signature) a checklist which contains criteria for controlling erosion. No fee will be collected. 4) Sensitive Areas Map. To assist in determining whether a site is w/n a sensitive area, a Draft Sensitive Areas Map has been produced by the PWE Info Team. A copy of this map has been distributed to the PIC (2 copies), WRT (1), Planning (1), Survey (1), East Team (1), Darwin Team (1), Maintenance (2), and DEVCORE (1) for review and comment. The DAC recommended 3 factors for determining sensitive area, any one would place a parcel in the sensitive area: 1) slopes >10%; 2) highly erodible soils; and 3) Sites that drain directly to open waterbodies. 5) Application. The sensitive areas map is based on digital data from USGS (highly erodible soils & slopes) and from water layer data in the common mapping system. For sites that "directly drain" to waterbodies, analysis was done by planning analysts. Because this data is generalized, applicants will be able to challenge the map with actual field data. So, this map will be used for decision making unless challenged with demonstrated inaccuracies. PUBLIC OUTREACH. A public workshop is scheduled for Nov 7th, 7:OOpm- 9:OOpm, EWEB Training Room. A mailing list of nearly 700 addresses (all types of contractors, subs, professionals, enviromental groups) will be notified w/ packets available at the worksession. COUNCIL ACTION. A worksession with the Council is scheduled for Dec 4 and public hearing is expected in Jan or Feb. Thanks for your time! Any questions, pls call or e-mail. tim Page 1