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Water Quality Samples for California

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! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024
with a full decommission expected 6 months later. Learn more about the upcoming change and where to find the new samples data in our blog.
To view additional data-quality attributes, output the results using these options: one result per row, expanded attributes.
Additional precautions are here.

USGS 323808117060402 018S002W05J002S

San Diego County, California
Hydrologic Unit Code 18070304
Latitude  32°38'08.0", Longitude 117°06'04.9" NAD83
Land-surface elevation 18.12 feet above NAVD88
The depth of the well is 2,200 feet below land surface.
The depth of the hole is 2,658 feet below land surface.
Output formats
Parameter Group Period of Record table
Inventory of available water-quality data for printing
Inventory of water-quality data with retrieval
Tab-separated data, one result per row
Tab-separated data one sample per row with remark codes combined with values
Tab-separated data one sample per row with tab-delimiter for remark codes
Reselect output format
Sample
Datetime		 Time
datum 		 Time
datum
reliability
code 		 Sample
Medium
Code 		 Agency
Collecting
Sample,
Code 


Temper-
ature,
water,
deg C
(00010)		 Specif-
ic
conduc-
tance,
wat unf
uS/cm @
25 degC
(00095)		 Hydro-
gen
ion,
water,
unfltrd
calcd,
mg/L
(00191)


Dis-
solved
oxygen,
mg/L
(00300)
pH,
water,
unfltrd
field,
std
units
(00400)
pH,
water,
unfltrd
lab,
std
units
(00403)

Carbon
dioxide
water,
unfltrd
mg/L
(00405)
Total
nitro-
gen,
water,
fltrd,
mg/L
(00602)
Organic
nitro-
gen,
water,
fltrd,
mg/L
(00607)

Ammonia
water,
fltrd,
mg/L
as N
(00608)

Nitrite
water,
fltrd,
mg/L
as N
(00613)

Nitrate
water,
fltrd,
mg/L
as N
(00618)		 Ammonia
+
org-N,
water,
fltrd,
mg/L
as N
(00623)		 Nitrate
+
nitrite
water,
fltrd,
mg/L
as N
(00631)
Ortho-
phos-
phate,
water,
fltrd,
mg/L
(00660)
Phos-
phorus,
water,
fltrd,
mg/L
as P
(00666)		 Ortho-
phos-
phate,
water,
fltrd,
mg/L
as P
(00671)

Organic
carbon,
water,
fltrd,
mg/L
(00681)

Hard-
ness,
water,
mg/L as
CaCO3
(00900)		 Noncarb
hard-
ness,
wat flt
field,
mg/L as
CaCO3
(00904)		 Noncarb
hard-
ness,
wat flt
lab,
mg/L as
CaCO3
(00905)


Calcium
water,
fltrd,
mg/L
(00915)

Magnes-
ium,
water,
fltrd,
mg/L
(00925)


Sodium,
water,
fltrd,
mg/L
(00930)


Sodium
adsorp-
tion
ratio
(00931)
Sodium
frac-
tion
of
cations
percent
(00932)

Potas-
sium,
water,
fltrd,
mg/L
(00935)

Chlor-
ide,
water,
fltrd,
mg/L
(00940)


Sulfate
water,
fltrd,
mg/L
(00945)

Fluor-
ide,
water,
fltrd,
mg/L
(00950)

Silica,
water,
fltrd,
mg/L as
SiO2
(00955)


Arsenic
water,
fltrd,
ug/L
(01000)


Barium,
water,
fltrd,
ug/L
(01005)


Boron,
water,
fltrd,
ug/L
(01020)


Iron,
water,
fltrd,
ug/L
(01046)

Manga-
nese,
water,
fltrd,
ug/L
(01056)

Stron-
tium,
water,
fltrd,
ug/L
(01080)

Alum-
inum,
water,
fltrd,
ug/L
(01106)


Lithium
water,
fltrd,
ug/L
(01130)


Tritium
water,
unfltrd
pCi/L
(07000)		 Alka-
linity,
wat flt
fxd end
lab,
mg/L as
CaCO3
(29801)		 Alka-
linity,
wat flt
inf tit
field,
mg/L as
CaCO3
(39086)		 C-14
countng
error,
water,
fltrd,
percent
modern
(49934)


Site
visit
purpose
code
(50280)		 Dis-
solved
solids
dried @
180degC
wat flt
mg/L
(70300)		 Dis-
solved
solids,
sum of
consti-
tuents,
mg/L
(70301)
Dis-
solved
solids,
water,
tons/
acre-ft
(70303)


Ammonia
water,
fltrd,
mg/L
(71846)


Nitrate
water,
fltrd,
mg/L
(71851)

Nitrite
water,
fltrd,
mg/L
as NO2
(71856)


Iodide
water,
fltrd,
mg/L
(71865)


Bromide
water,
fltrd,
mg/L
(71870)



Sample
purpose
code
(71999)
delta
C-13 /
C-12,
water,
unfltrd
per mil
(82081)

delta
H-2/H-1
water,
unfltrd
per mil
(82082)
delta
O-18 /
O-16,
water,
unfltrd
per mil
(82085)


Rn-222,
water,
unfltrd
pCi/L
(82303)		 Specif.
conduc-
tance,
wat unf
lab,
uS/cm @
25 degC
(90095)		 1 mL
4.5 N
H2SO4
preser-
vative
lot
number
(99156)		 2 mL
7.7 N
HNO3
preser-
vative
lot
number
(99159)		 50,000
uS/cm
KCl
conduct
stand-
ard lot
number
(99170)
0.45 um
capsule
filter
NWIS
lot
number
(99206)
2017-10-25 16:00
 PDT
 K
 WG
38.5 23200 0.00005 M  7.3 7.8 15                       1410 1240 1240 270 178 5000 58.0 88 43.0 7510 1210 < 1.00 24.0 3.9 78.0 5350 578 241 5790 < 75.0 643 0.22 175 173 0.050   14700 14400 20.0       0.551 24.3   -14.15     510 E 23600        
2019-08-06 15:00
 PDT
 K
 WG
 USGS-WRD
 33.1 24000 0.00005 1.5 7.3 7.6 7.3 < 1.8 0.07 1.64 < 0.001 < 0.040 1.7 < 0.040 0.141 0.02 0.046 0.53 3360   3290 717 377 4450 33.5 74 45.2 8190 1400 < 0.25 21.7 < 2.5 122 2170 782 314 14000 < 75 673 R -0.05 71.4   0.070 2004 16100 15300 21.8 2.11 < 0.177 < 0.003 0.373 27.5 10.00 -11.08 -31.90 -4.71   24100 40286 40271 30768 10062

Water Quality Remark Code Description
< Less than
E Estimated
M Presence verified but not quantified
R Radchem non-detect, below ssLc