HomeMy WebLinkAboutMINUTES - 12081992 - 1.7 117
TO: BOARD OF SUPERVISORS
FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR
DATE: December 8, 1992
SUBJECT: COLLECT AND CONVEY DRAINAGE REQUIREMENTS FOR MINOR SUBDIVISION 45-91
(RENNACKER - WEST PITTSBURG AREA).
SPECIFIC REQUEST(S) OR RECOMMENDATION(S) &BACKGROUND AND JUSTIFICATION
I. Recommended Action:
1. ACCEPT this report regarding a request from Ms. Myra Rennacker for relief from the
"collect and convey" requirement on Minor Subdivision No. 45-91.
2. APPROVE the following as an alternative condition of approval to the "collect and convey"
requirement of Ordinance Code Section No. 914-2.00:
a. All drainage to and from the site shall be conveyed across said site in an
adequate, maintainable, open drainage way to the existing roadside ditch.
b. Developer shall execute a recordable agreement accepting unto himself and future
owners of the above drainage way all responsibility for future maintenance and
liability.
C. Developer shall be required to pay a drainage deficiency fee in order to mitigate
the accumulative hydrology impact from this development. The drainage
deficiency fee amount, based upon $1.00 per square foot of impervious surface
generated by his development, is calculated to be $10,215.
Continued on Attachment: x SIGNATURE:
RECOMMENDATION OF COUNTY ADMINISTRATOR
RECOMMENDATION OF BOARD COMMITTEE
APPROVE _ OTHER
SIGNATURE(S):
ACTION OF BOARD ON DEC 8 19992APPROVED AS RECOMMENDED 77 OTHER
VOTE OF SUPERVISORS
✓ UNANIMOUS (ABSENT )
AYES: NOES:
ABSENT: ABSTAIN: I hereby certify that this Is a true and correct copy :4
an action taken and entered on the minutes of the
ML:cl Board of Supervisors on the drape shown.
C:608b.t12 ATTESTED: DR R I.N2
PHIL BATCHELOR,Clerk of the Board
Contact: M. Lysons (313-2245) of Supervisors and County Administrator
Orig. Div: Public Works (RE)
cc: SEE PAGE TWO '
BY .... .. ..- -,Deputy
Ms. Rennacker, MS 45-91
Page Two le,7
December 8, 1992
3. ADOPT the following findings pursuant to Chapter 92-6, "Exceptions", of the Ordinance
Code in order to approve the alternative condition of approval:
a. There are unusual circumstances or conditions affecting the property. Extensive
drainage improvements are necessary and most of the area has developed, thereby
eliminating the opportunity for a joint development drainage project. The potential for
land development activity to provide for orderly development of the drainage system is
unlikely in the near future.
b. The exception is necessary for the preservation and enjoyment of a substantial
property right of the applicant. Subdivision of land in the general West Pittsburg area
needs to occur by allowing developers to comply with the Drainage Division of the
Subdivision Ordinance with improvements which are much less extensive per unit than
those required for this development.
C. The granting of the exception will not be materially detrimental to the public welfare
or injuries to other property in the territory in which the property is situated. The amount
of storm water runoff from the new impervious surfaces, approximately 10,215 square
feet, is minor in comparison to the size of the watershed.
II. Financial Impact:
The financial impact to the County is unknown.
III. Reasons for Recommendations and Background:
The one acre in the Bella Vista Avenue area of West Pittsburg contains two existing single -family
homes. Ms. Rennacker wants to subdivide this site into four equal parcels, with two of the
parcels to be created being vacant and the other two being occupied by the existing home.
Unfortunately, drainage in this area depends on inadequate road side ditches to convey surface
runoff. The nearest adequate drainage facility is located approximately 1,800 feet away.
We have had several engineers review this development to determine the least costly drainage
solution that meets the requirements of "collect and convey". They have concluded that all of
the potential solutions are not economically feasible for a minor subdivision.
A strict compliance to the"collect and convey"requirement places a hardship on Ms. Rennacker.
There exists an unusual circumstance where as it would be impossible for Ms. Rennacker to
generate the necessary funding from a minor subdivision needed to design or construct any
drainage improvement that would have a significant impact in this area.
Staff recommends that the Board permit the alternative condition of approval in lieu of full "collect
and convey". The proposed contributions to regional drainage from this development represents
its fair share of the future costs. The cash contribution will be pooled with other monies to
implement needed drainage improvements to service this area.
IV. Consequences of Negative Action:
Full requirements of "collect and convey" would place a financial hardship on this development
and most likely cause it to be not feasible.
cc: County Administrator
Community Development
Building Inspection
County Counsel
County Assessor
County Treasurer -Tax Collector
County Auditor- Controller
Engineering Services
Ms. Rennacker