San Diego Hydrogeology


Site Description for Chollas Park (16S/2W-34G1–6)

STATION NUMBER: 324416117042001–6 016S002W34G001–6S   Agency: USGS
LOCATION: Latitude 32°44'15.94", longitude 117°04'20.06" referenced to North American Datum of 1983, in SE 1/4 SW 1/4 NE 1/4 sec.34, T.16 S., R.2 W., San Diego County, CA, Hydrologic Unit 18070304
WATER-LEVEL RECORD: The period of record for intermittent and daily water-level measurements is listed below.
State well number USGS station number Intermittent Water-level Daily water-level
16S/2W-34G1
16S/2W-34G2
16S/2W-34G3
16S/2W-34G4
16S/2W-34G5
16S/2W-34G6		 324416117042001
324416117042002
324416117042003
324416117042004
324416117042005
324416117042006		 8/9/2011 to present
8/9/2011 to present
8/9/2011 to present
8/9/2011 to present
8/9/2011 to present
8/9/2011 to present		 10/27/2011 to present
10/27/2011 to present
10/27/2011 to present
10/27/2011 to present
1/8/2013 to present
10/27/2011 to present
COOPERATION: The station is operated under cooperative agreement with the City of San Diego.
WELL CHARACTERISTICS:
Well Id Hole depth (ft) Well depth (ft) Perforation depth (ft) Casing size & type
16S/2W-
34G6
34G5
34G4
34G3
34G2
34G1
1100
1100
1100
1100
1100
1100
50
160
350
540
780
1100¹
30–50
140–160
330–350
520–540
760–780
920–1060*
2" PVC
2" PVC
2" PVC
2" PVC
2" PVC
3" PVC
* Note: Perforation depths are not continuous.
Depths are: 920–940; 980–1000; 1040–1060
¹ Note: Sump
ROAD LOG: Start at: 12110 Tech Center Dr Poway, CA 92064

1. Head north on Tech Center Dr toward Gregg St - 0.2 mi
2. Take the 2nd left onto Scripps Poway Pkwy - 4.4 mi
3. Continue onto Mercy Rd - 0.1 mi
4. Turn left to merge onto I-15 S - 15 mi
5. Take SR-805 South ½ miles to 94 east and proceed ½ mile to Euclid Ave north exit.
6. Proceed north on Euclid Ave ½ mile and veer right on 54 St. and go 1 mile to College Grove Dr. 7. Turn right on College Grove Dr. and go about 1 Mile to Caminito Chollas (at traffic light) Turn left into Chollas Park. Go through *gate and down the hill.
8. Wells are in a Vault on the southeast side of the parking lot, there's a softball field on the north side of parking lot. *Note: Gate into this section of the park is locked until 0700 and whenever it has been raining or expected to rain. Vault should not be opened in rainy conditions to keep equipment dry.
If the gate is locked call: San Diego Parks ph#619/525-8219 or Ranger#858/699-4569

Project Chief: Wes Danskin
Phone: 619-225-6132
Email: wdanskin@usgs.gov

Welcome to the United States Geological Survey (USGS) San Diego Hydrogeology (SDH) project website, which provides geologic and hydrologic information for the transboundary San Diego–Tijuana area, USA and Mexico. This website provides background information about the project; a variety of news items; a large amount of data, in particular for USGS multiple-depth, monitoring-well sites; geologic and hydrologic models; and additional resources including photos, illustrations, and references.

Last updated: July 2023.

Some additional data may be available from the USGS database National Water Information System (NWIS).

Questions about San Diego Hydrogeology? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132