HomeMy WebLinkAboutAMETHYST AVENUE BETWEEN SOUTH BAY FRONT AND BALBOA AVENUEAMETHYST AVENUE STORM DRAIN
NEGATIVE DECLARATION
BY
CITY OF NEWPORT BEACH
PUBLIC WORKS DEPARTMENT
1. PROJECT LOCATION: The„storm drain construction is located in Amethyst
Avenue between South Bay Front and Balboa Avenue, and along South
Bay Front between Apolena and Onyx Avenues, all on Balboa Island in the City
of Newport Beach.
2. PROJECT DESCRIPTION: An 24-inch diameter storm drain will be installed in
Amethyst Avenue to convey storm water from 7 new catch basins to a
slide gate structure at the southerly Amethyst Avenue street end. An
18-inch diameter storm drain pipe will be installed under South Bay Front
to convey storm water from new catch basins located at the southerly Apolena
and Onyx Avenue street ends to the same slide gate structure. The 4-foot by
5-foot by 7-foot deep slide gate structure will be fitted with an electrically
operated 24-inch slide gate, which will control the flow of the Island's
storm water into Newport Bay and the flow of the high tide bay water into
island streets. A 24-inch diameter storm drain pipe will extend approximately
40 feet from the slide gate structure into Newport Bay. The bayward 20 feet
of pipe and the upper 2 feet of the slide gate structure will be visible
above the public beach and the Amethyst Avenue Street end, respectively.
All other physical features of the project will be subterranean.
3. PROJECT GOALS: The project will provide (1) relief from flooding and
splashing of property and person along Amethyst Avenue, (2) adequate
drainage capacity to replace inadequately -sized drains located at the
southerly Onyx, Apolena and Amethyst street ends, and (3) a single,
electrically operated slide gate to replace 3 manually operated slide gates
at the aforementioned street ends.
4. EFFECT ON THE ENVIRONMENT: There will be no significant long-term irreversible
or irretrievable effects on the environment. There will be minimal, acceptable
short-term disturbances of the environment due to construction activity.
5. BASIS FOR NEGATIVE DECLARATION: This project is consistent with the
General Plan policies of the City of Newport Beach and could not have a
significant effect on the environment.
6. INITIAL STUDY: The City Of Newport Beach Public Works Department has prepared
this Negative Declaration and its Initial Study in accordance with Article 7,
Chapter.3, Guidelines for Implementation of the California Environmental
Quality Act of 1970. Copies of the Initial Study may be obtained from said
department during normal business hours.
Benjamin B. Nolan
Public Works Director
LRD/bjm
AMETHYST AVENUE STORM DRAIN
INITIAL STUDY
BY
CITY OF NEWPORT BEACH
PUBLIC WORKS DEPARTMENT
A. CONFORMANCE WITH THE GENERAL PLAN
This project is consistent with the General Plan of the City of Newport
Beach, in particular, the "Conservation of Natural Resources Element."
B. ENVIRONMENTAL CHECKLIST FORM
An Environmental Checklist Form (attached) has been completed as a portion
of this study. The following statements, referenced to questions presented
on the checklist, explain all "yes" and "maybe" answers:
II.3.b Construction of catch basins and transmission pipe will
increase the runoff rate and reduce the absorption rate
correspondingly in the vicinity of the sump condition along
Amethyst Avenue; however, the increased runoff rate will
preclude flooding of public and private property which has
occurred heretofore during heavy rain storms.
II.14.e Construction of storm drain improvements will result in the
need for periodic cleaning of debris from inlet catch basins;
however, a correspondingly lesser amount of debris will need to
be cleaned from public and private property which flood during
heavy rainstorms in absence of the improvements.
II.18. Approximately 20 linear feet of the bayward end of the
24-inch-diameter storm drain pipe will be partially exposed
along the South Bay Front. In addition, the tide gate struc-
ture will project approximately 2 feet above the sidewalk ele-
vation at the southerly Amethyst Avenue street end.
Att.
10/12/86
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At it •, .
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ENVIRONMENTAL CHECKLIST FORM
I. Background
1. Name of Proponent C/y`y CPI / ez' ainh. ffea' A
2. Address and Phone Number of Proponent PUb/zt llldr49 L7eya '74/#C'CIh
Ogee Weeper* 800letlard ; Nearer* each, 04
(7/4) e 44.3311
3. Date of Checklist Submission ccltber 145 19A6
4. :Agency Requiring Checklist City of Nsvport $ead2
5. Title of Project Ametyy* Avenue- Stern Dram
II. Environmental Impacts
(Explanations of all "yes" and "maybe" answers are required on attached sheets.)
YES MAYBE NO
1. Earth. Will the proposal result in:
Unstable earth conditions or in
changes in geologic substructures? Ar
b. Disruptions, displacements,
compaction or overcovering of the
soil? ar
ic. Change in topography or ground
surface relief features?
d. The destruction, covering or
modification of any unique geologic
or physical features?
e. Any increase in wind or water erosion
of soils, either on or off the site?
f. Changes in deposition or erosion of
beach sands, or changes in siltation,
deposition or erosion which may modify
the channel of a river or stream or
the bed of the ocean or any bay, inlet
or lake? . __
X
YES MAYBE NO
g. Exposure of people or property to
geological hazards such as earth-
quakes, landslides, mudslides, ground
failure, or similar hazards?
2. Air. Will the proposal result in:
a. Substantial' air emissions or
deterioration of ambient air quality? X
b. The creation of objectionable odors? ' AC
c. Alteration of air movement, moisture
or temperature, or any change in
climate, either locally or regionally?
3. Water. Will the proposal result in:
a. Changes in currents, or the course or•
direction of water movements, in either
marine or fresh waters?
b. Changes in absorption rates, drainage
patterns, or the rate and amount of
surface runoff?
c. Alterations to the course of flow of
flood waters?
d. Change in the amount of surface water
in any water body?
e. Discharge into surface waters or in
any alteration of surface water
quality, including but not limited
to temperature, dissolved oxygen or
turbidity?
f. Alteration of the direction or rate
of flow of ground waters?
g. Change in the quantity of ground
waters, either through direct addi-
tions or withdrawals', or through
interception of an aquifer by cuts
or excavations?
h. Substantial reduction in the amount
of water otherwise available for
public water supplies?
i. Exposure of people or property to
water related hazards -such as
flooding or tidal waves?
x
x
YES MAYBE NO
4. Plant Life. Will the proposal result in:
a. Change in the diversity of species,
or number of any species of plants
(including trees, shrubs, grass,
crops, and aquatic plants)? X
b. Reduction of the numbers of any
unique, rare or endangered species
of plants?
c. Introduction of new species of
plants into an area, or in a barrier
to the normal replenishment of X
existing species?
d. Reduction in acreage of any X
agricultural crop? —
5. Animal Life. Will the proposal result in:
a. Change in the diversity of species, or
numbers of any species of animals
(birds, land animals including reptiles,
fish and shellfish, benthic organisms,
or insects)? , X
b. Reduction of the numbers of any unique,
rare or endangered species of animals? X
c. Introduction of new species of animals
into an area, or result in a barrier
to the migration or movement of X
animals? --
d. Deterioration to existing fish or
wildlife habitat? X
6. Noise. Will the proposal result in:
a. Increases in existing noise levels? X
x
x
b. Exposure of people to severe noise
levels?
7. Light and Glare. Will the proposal produce
new light or glare?
Land Use. Will the proposal result in a
substantial alteration.of the present or
planned -land use -of an area?
' • J
9. Natural Resources. Will the proposal
result in:
-- a. --Increase in the rate of use of any
natural resources?
b. Substantial depletion of any non-
renewable natural resource?
10. Risk of Upset. Does the proposal involve
a risk of an explosion or the release of
hazardous substances (including, but not
limited to, oil, pesticides, chemicals or
radiation) in the event of an accident or
upset conditions?
11. Population. Will the proposal alter the
location, distribution, density, or growth
rate of the human population of an area?
12. Housing. Will the proposal affect
existing housing, or create a demand
for additional housing?
YES MAYBE NO
X
X
13. Transportation/Circulation. Will the
proposal result in:
a. Generation of substantial additional
vehicular movement? X
b. Effects on existing parking facilities,
a or demand for new parking? X
c. Substantial impact upon existing
transportation systems? A(
i d. Alterations to present patterns of
circulation or movement of people
and/or goods?
e. Alterations to waterborne, rail or
air traffic?
f. Increase in traffic hazardousto
motor vehicles, bicyclists or
pedestrians? -
14. Public Services. Will the proposal have an
effect upon, or result in a need for new or
altered.governmentai services-inany of'the
following areas:
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c>• 5
• •
YES MAYBE N0
a. Fire protection?
b. Police protection? )(
c. Schools?
d. Parks or other recreational facilities? A(
e. Maintenance of public facilities,
including roads? __g__
f. Other governmental services? X
15. Energy. Will the proposal result in:
a. Use of substantial amounts of fuel or
energy?
b. Substantial increase in demand upon
existing sources of energy, or require
the development of new sources of
energy?
16. Utilities. Will the proposal result in a
need for new systems, or substantial
alterations to the following utilities:
a. Power or natural gas? X
b. Communications systems? _A__
c. Water?
d. Sewer or septic tanks?
e. Storm water drainage? —�—
f. Solid waste and disposal? —�-
17. Human Health. Will the proposal result in:
a. Creation of any health hazard or
potential health hazard (excluding
mental health)?
b. Exposure of people to potential
health hazards? —�-
18. Aesthetics. Will the proposal result in the
obstruction of any scenic vista or view open
to the public, or Will the proposal result in the creation of an aesthetically
. offensive site open to publid view?
•
• •
19. Recreation. .Will the proposal result
in an impact upon the quality or quantity
of -existing recreational opportunities?
20. Archeological/Historical. Will the
proposal result in an alteration of
a significant.archeological or historical
site, structure, object or building?
21. Mandatory Findings of Significance.
a. Does the project have the potential to
degrade the quality of the environment,
substantially reduce the habitat of a
fish or wildlife species, cause a fish
or wildlife population to drop below
self-sustaining levels, threaten to
eliminate a plant or animal community,
reduce the number or restrict the
range of a rare or endangered plant
or animal or eliminate important
examples of the major periods of
California history or prehistory?
b. Does the project have the potential to
achieve short-term, to the disadvantage
of long-term, environmental goals? (A
short-term impact on the environment is
one which occurs in a relatively brief
definitive period of time while long-
term impacts will endure well into the
future.)
c. Does the project have impacts which
are individually limited, -but cumu-
latively considerable? (A project
may impact on two or more separate
resources where the impact on each
resource is relatively small, but
where the effect of the total of
those impacts on the•environment is
significant.)
d. Does the project have environmental
effects which will cause substantial
adverse effects on human beings,
either directly or indirectly?
.4
YES MAYBE NO
X
X
X