20260503
18312900
1.0
FALSE
CITY.ENVIRONMENTALLY_SENSITIVE_AREAS
4.965
002
-117.284631
-116.543338
32.534248
33.116129
1
Projected
GCS_North_American_1983
Linear Unit: Foot_US (0.304801)
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NAD_1983_StatePlane_California_VI_FIPS_0406_Feet
20240814
18030600
20240814
18030600
North American Profile of ISO19115 2003
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CITY.ENVIRONMENTALLY_SENSITIVE_AREAS
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dataset
Alex Gostomelskiy
City of San Diego
Senior Engineer
858-541-4337
202 C St.
San Diego
CA
92101
US
AleksandrG@sandiego.gov
20240625
ArcGIS Metadata
1.0
ESA_CSD_200ft
Alex Gostomelskiy
City of San Diego
Senior Engineer
858-541-4337
202 C St.
San Diego
CA
92101
US
AleksandrG@sandiego.gov
For the purposes of this dataset, ESA is as defined in the Stormwater Standards Manual, which follows the definition in the San Diego Regional Municipal Separate Storm Sewer System (MS4) Permit issued by the San Diego Regional Water Quality Control Board. The ESA dataset is a combination of the following data sources: (1) Water bodies listed in the State Water Resources Control Board 2020-2022 Clean Water Act section 303(d) List of Water Quality Limited Segments, (2) water bodies listed in the Water Quality Control Plan for the San Diego Basin as having a RARE beneficial use, and (3) San Diego Multi-Habitat Planning Are (MHPA) Areas downloaded from SanGIS in September 2023. Some corrections to water body locations were made based on the USGS National Hydrography Dataset, internal City of San Diego Stormwater Department channel mapping, and aerial photos. A 200 foot buffer was been added around all of the elements derived from the above sources, except for the portion of Switzer Creek noted below, and then the buffered dataset was dissolved. The underground portion of Switzer Creek (downstream of Balboa Park area) does not have a 200 foot buffer drawn for it. No buffer was applied to this are because most properties the ESA line does not run directly through will have their runoff commingle with runoff from offsite areas and therefore not trigger ESA criteria per the Stormwater Standards Manual.
This dataset was developed to show areas of Environmentally Sensitive Areas (ESA) as defined in the 2024 City of San Diego Stormwater Standards Manual. The data includes ESAs and a 200 foot buffer around the ESAs, which are merged together in the dataset.
City of San Diego, Stormwater Department
Alex Gostomelskiy
City of San Diego
Senior Engineer
858-541-4337
202 C St.
San Diego
CA
92101
US
AleksandrG@sandiego.gov
Environmentally Sensitive Area, ESA, Water Resources Control Board, MHPA, RARE, beneficial use, ASBC, EPA, 303(d), Natural Communities Conservation Program
Environmentally Sensitive Area, ESA, Water Resources Control Board, MHPA, RARE, beneficial use, ASBC, EPA, 303(d), Natural Communities Conservation Program
ESAs as drawn on this map include both the ESA and a 200 foot buffer from the ESA. Exact locations of ESAs may vary somewhat from this map based on site-specific additional data collection, such as project-level survey and consultation with regulatory agencies to determine the limits of water bodies. In using the data, users should be aware that some of these data are generalized and not parcel based, and were created for use in regional projects. While SanGIS and City of San Diego believes the data is accurate and properly functioning, SanGIS and City of San Diego disclaims any responsibility for the accuracy or correctness of the data. This data is provided on an "AS IS", "AS AVAILABLE" and "WITH ALL FAULTS" basis. SanGIS and City of San Diego makes no warranties, express or implied, including but not limited to any warranties of merchantability or fithess for a particular purpose, nor shall the distribution of this information constitute any warranty. In no event shall SanGIS and City of San Diego become liable to users of these data, or any other party, for any loss or damages, consequential or otherwise, including but not limited to time, money, or goodwill, arising from the use, operation or modification of the data. In using these data, you further agree to indemnify, defend, and hold harmless SanGIS and City of San Diego for any and all liability of any nature arising out of or resulting from the lack of accuracy or correctness of the data, or the use of the data.
Esri ArcGIS 12.6.2.24783
Data was compiled based on data sources updated in 2022 and 2023.
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ESAs as drawn on this map include both the ESA and a 200 foot buffer from the ESA. Exact locations of ESAs may vary somewhat from this map based on site-specific additional data collection, such as project-level survey and consultation with regulatory agencies to determine the limits of water bodies. In using the data, users should be aware that some of these data are generalized and not parcel based, and were created for use in regional projects. While SanGIS and City of San Diego believes the data is accurate and properly functioning, SanGIS and City of San Diego disclaims any responsibility for the accuracy or correctness of the data. This data is provided on an "AS IS", "AS AVAILABLE" and "WITH ALL FAULTS" basis. SanGIS and City of San Diego makes no warranties, express or implied, including but not limited to any warranties of merchantability or fithess for a particular purpose, nor shall the distribution of this information constitute any warranty. In no event shall SanGIS and City of San Diego become liable to users of these data, or any other party, for any loss or damages, consequential or otherwise, including but not limited to time, money, or goodwill, arising from the use, operation or modification of the data. In using these data, you further agree to indemnify, defend, and hold harmless SanGIS and City of San Diego for any and all liability of any nature arising out of or resulting from the lack of accuracy or correctness of the data, or the use of the data.
1. Obtain 303(d) and RARE beneficial use line and polygon files and the MHPA polygon file. The USGS National Hydrography Dataset (NHD) and City of San Diego Stormwater Department channel maintenance areas (CSA) and MS4 data were used as a supplement to make the following changes, where data from other sources did not align with these data sets and were revised to align with them:
a. Draw in missing segments of San Clemente Canyon (RARE beneficial use; the missing segments were located mainly within Miramar Air Station property) to align with NHD
b. Draw in missing segment of Alvarado Creek (303(d) listed; the missing segment is at the downstream terminus, just upstream of the San Diego River) to align with NHD
c. Revise the alignment of the 303(d) impaired water body line for Switzer Creek west of Balboa Golf Course (the line incorrectly was located too far west in the US Naval Medical Center instead of its correct location along Florida Street) to align with NHD to I-5 and to align with City MS4 downstream of I-5. The line for Switzer Creek in Caltrans right-of-way around I-5 was aligned to the conveyance location shown in the Caltrans MS4 GIS data.
d. Revise the alignment of Chollas Creek along SR-163, south of SR-94, and by the Imperial Marketplace, to align with SWD channel maintenance (CSA) data
Section 303(d) impaired water bodies. Water bodies with RARE beneficial use. San Diego Basin Plan Map https://gispublic.waterboards.ca.gov/portal/apps/webappviewer/index.html?id=1f58bd97fdcd45329a5e16e373ede24d
City of San Diego Multi-Habitat Planning Area (MHPA), downloaded from SanGIS on September 8, 2023 (data set name is “MHPA_SD”).
SanGIS
2023-04-08
USGS National Hydrography Dataset (NHD) and City of San Diego Stormwater Department channel maintenance areas (CSA) and MS4.
2. Convert the 303(d) and RARE beneficial use line files to 25 foot wide polygons using the buffer tool with a buffer width of 12.5 ft. (Outputs: Lines303d_25ft, BasinPlanLines_RARE_CSDedit_25ft).
303(d) listed water body lines. A 12.5 ft buffer on either side of each line was added to convert the line file this polygon file (25 ft wide total). Converting the line file to a polygon allows it to be merged in with other polygon data set. Line file of water bodies with RARE beneficial use. Includes edits to San Clemente Canyon line work to align it with NHD data.
Lines303d_25ft, BasinPlanLines_RARE_CSDedit_25ft
3. Merge the Obtain 303(d) and RARE beneficial use line and polygon files and the MHPA polygon file. (Output: ESA2023_Detail)
ESA2023_Detail
4. Create a City boundary file by merging the City of San Diego municipal boundary from the SanGIS municipal boundary file with the San Diego Bay polygon from the SanGIS HYD_BAY water body polygon file, and then add a 1,000 foot buffer to that merged file. The buffer ensures water bodies close to, but just outside of, the City boundary are included in the ESA data set. (Output: CSD_Boundary_1000ft_SDB)
Merged file of City of San Diego municipal boundary (from SanGIS) and San Diego Bay polygon (from SanGIS HYD_BAY), with 1,000 ft buffer added.
CSD_Boundary_1000ft_SDB
5. Clip the merged ESA polygon file (step 4) using the City boundary file created in step 4. (Output: ESA2023_Detail_CSD)
ESA2023_Detail_CSD
6. Dissolve the polygon file created in step 5. (Output: ESA2023_CSD)
Environmentally Sensitive Areas (ESA), without a buffer. This is a merged, dissolved data set of all the ESA components. It was clipped to exclude areas more than 1,000 feet outside the City of San Diego boundaries (data set 10 below). This data set was prepared by dissolving data set ESA2023_Detail_CSD.
ESA2023_CSD
7. Cut the dissolved polygon created in step 6 to separate it into two polygons: one for the portion of Switzer Creek that is underground (downstream of approximately Pershing Street and I-5) and one for all other ESAs
8. Create a 200 ft buffer around the polygon file created in step 7 that includes all ESAs except for the downstream portion of Switzer Creek.
9. Merge the buffered file created in step 9 with the polygon file created in step 7 that includes only the downstream portion of Switzer Creek (Output: ESA2023_CSD_200ft)
Layer ESA2023_CSD with a 200 foot buffer around it. This reflects the 200 foot distance cited in the MS4 Permit as being equivalent to “directly adjacent”.
ESA2023_CSD_200ft
0
EPSG
6.5(3.0.1)
5.3(9.0.0)
Enterprise Geodatabase Feature Class
4.965
Simple
FALSE
0
TRUE
TRUE