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Water Quality Samples for the Nation

! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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.
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USGS 06308400 Pumpkin Creek near Miles City MT

Custer County, Montana
Hydrologic Unit Code 10090102
Latitude  46°13'42.08", Longitude 105°41'26.19" NAD83
Drainage area 696  square miles
Gage datum 2,490 feet above NGVD29
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 
Total
nitro-
gen,
water,
unfltrd
mg/L
(00600)
Organic
nitro-
gen,
water,
unfltrd
mg/L
(00605)
Organic
nitro-
gen,
water,
fltrd,
mg/L
(00607)

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

Ammonia
water,
unfltrd
mg/L
as N
(00610)

Nitrite
water,
fltrd,
mg/L
as N
(00613)		 Ammonia
+
org-N,
water,
unfltrd
mg/L
as N
(00625)		 Nitrate
+
nitrite
water
unfltrd
mg/L
as N
(00630)		 Nitrate
+
nitrite
water,
fltrd,
mg/L
as N
(00631)

Phos-
phate,
water,
unfltrd
mg/L
(00650)
Phos-
phorus,
water,
unfltrd
mg/L
as P
(00665)
Phos-
phorus,
water,
fltrd,
mg/L
as P
(00666)		 Ortho-
phos-
phate,
water,
fltrd,
mg/L
as P
(00671)		 Total
nitro-
gen,
wat unf
by anal
ysis,
mg/L
(62855)


Ammonia
water,
unfltrd
mg/L
(71845)


Ammonia
water,
fltrd,
mg/L
(71846)
Phos-
phorus,
water,
unfltrd
mg/L
as PO4
(71886)		 Total
nitro-
gen,
water,
unfltrd
mg/L
as NO3
(71887)
1975-10-15 12:15
 MDT
 T
 WS
1.1 1.1     < 0.010   1.1 0.020     0.040       < 0.013     5.0
1975-11-12 15:10
 MST
 T
 WS
2.0 1.6     < 0.010   1.6 0.350     < 0.010       < 0.013     8.6
1975-12-10 10:00
 MST
 T
 WS
1.5 1.0     0.060   1.1 0.370     0.020       0.077     6.5
1976-01-14 10:00
 MST
 T
 WS
1.3 1.1     0.040   1.1 0.190     0.020       0.052     5.7
1976-02-13 10:00
 MST
 T
 WS
2.4 2.2     0.100   2.3 0.080     0.020       0.129     11.0
1976-03-10 13:00
 MST
 T
 WS
2.8 2.5     0.110   2.6 0.240     0.430       0.142     13.0
1976-04-15 12:30
 MST
 T
 WS
0.65 0.61     0.040   0.65 < 0.100     0.070       0.052     2.9
1976-05-12 09:30
 MDT
 T
 WS
1.6 1.6     0.040   1.6 0.040     0.150       0.052     7.3
1976-06-07 14:30
 MDT
 T
 WS
0.90 0.82     0.060   0.88 0.020     0.070       0.077     4.0
1976-07-12 14:00
 MDT
 T
 WS
1.1 1.1     0.050   1.1 0.020     0.250       0.064     5.0
1977-02-15 17:45
 MST
 T
 WS
2.1 1.6     < 0.010   1.6 0.530     0.300       < 0.013     9.4
1977-04-04 14:20
 MST
 T
 WS
4.6 3.9     0.110   4.0 0.550     0.570       0.142     20.0
1977-05-03 14:00
 MDT
 T
 WS
0.67 0.65     < 0.010   0.65 0.020     0.050       < 0.013     3.0
1977-10-19 15:40
 MDT
 T
 WS
1.1 0.63     0.130   0.76 0.350     0.220       0.167     4.9
1978-03-16 11:00
 MST
 T
 WS
4.3 2.2     1.30   3.5 0.800     0.560       1.67     19.0
1978-03-21 10:30
 MST
 T
 WS
0.85 0.00     0.540   0.54 0.310     2.00       0.695     3.8
1978-04-19 08:30
 MST
 T
 WS
0.74 0.67     0.050   0.72 0.020     0.070       0.064     3.3
1978-05-15 16:00
 MDT
 T
 WS
0.82 0.79     0.030   0.82 < 0.100     0.120       0.039     3.6
1978-06-20 15:40
 MDT
 T
 WS
1.4 1.2     0.010   1.2 0.230     0.030       0.013     6.3
1978-07-19 15:30
 MDT
 T
 WS
 USGS-WRD
 12 11     0.010   11 0.700     3.20       0.013     52.0
1978-08-02 07:45
 MDT
 T
 WS
 USGS-WRD
 0.79 0.78     0.010   0.79 < 0.100     0.070       0.013     3.5
1978-09-06 09:00
 MDT
 T
 WS
 CONTRACT
 1.7 1.5     0.160   1.7 0.020     0.070 0.010     0.206     7.6
1978-09-13 16:45
 MDT
 T
 WS
 USGS-WRD
 18 16     0.120   16 1.50     5.80       0.155     77.0
1978-10-10 14:35
 MDT
 T
 WS
 USGS-WRD
 0.80 0.79     < 0.010   0.79 0.010     0.100       < 0.013     3.5
1978-10-24 07:30
 MDT
 T
 WS
 USGS-WRD
 1.3 1.3     0.010   1.3 < 0.100     0.050 0.010     0.013     5.8
1978-12-28 11:45
 MST
 T
 WS
 USGS-WRD
 1.2 0.64     0.030   0.67 0.480     0.020       0.039     5.1
1979-03-12 14:30
 MST
 T
 WS
 USGS-WRD
 1.4 0.90     0.090   0.99 0.430     0.520       0.116     6.3
1979-03-18 13:45
 MST
 T
 WS
 USGS-WRD
 1.8 1.4     0.200   1.6 0.220     0.330       0.258     8.1
1979-04-26 07:45
 MST
 T
 WS
 USGS-WRD
 0.98 0.92     0.030   0.95 0.030   0.150 0.050       0.04   0.15 4.3
1979-05-23 14:30
 MDT
 T
 WS
 USGS-WRD
 0.79 0.68     0.090   0.77 0.020   0.090 0.030       0.11   0.09 3.5
1979-06-27 13:50
 MDT
 T
 WS
 USGS-WRD
 0.92 0.86     0.050   0.91 0.010   0.180 0.060       0.06   0.18 4.1
1979-07-23 14:30
 MDT
 T
 WS
 USGS-WRD
 0.60 0.55     0.040   0.59 0.010     0.070       0.05   0.21 2.7
1979-11-29 10:15
 MST
 T
 WS
 USGS-WRD
 1.3 0.97     0.030   1.0 0.250     0.040       0.04   0.12 5.5
1979-12-18 10:15
 MST
 T
 WS
 USGS-WRD
 1.4 1.2     0.080   1.3 0.070     0.030       0.10   0.09 6.1
1980-03-25 15:00
 MST
 T
 WS
 USGS-WRD
 0.78 0.65     0.070   0.72 0.060     0.070       0.08   0.21 3.5
1980-06-24 10:30
 MDT
 T
 WS
 USGS-WRD
 1.8 1.6     0.060   1.7 0.130     0.100       0.07   0.31 8.1
1980-11-17 15:10
 MST
 T
 WS
 USGS-WRD
 2.2 0.93     0.170   1.1 1.10     0.200       0.21   0.61 9.7
1981-02-25 10:00
 MST
 T
 WS
 USGS-WRD
 1.6 1.1     0.100   1.2 0.360     0.110       0.129   0.34 6.9
1981-05-18 16:00
 MDT
 T
 WS
 USGS-WRD
 1.3 1.0     0.280   1.3 0.020     0.100       0.361   0.31 5.8
1981-06-16 16:30
 MDT
 T
 WS
 USGS-WRD
 1.7           0.09 1.60     4.00           12 7.5
1981-08-17 16:15
 MDT
 T
 WS
 USGS-WRD
 9.5 4.5     0.130   4.6 4.90     1.00       0.167   3.1 42.0
1982-02-19 09:55
 MST
 T
 WS
 USGS-WRD
 4.8 2.4     1.40   3.8 0.980     0.310       1.80   0.95 21.0
1982-03-15 14:20
 MST
 T
 WS
 USGSNWQL
 2.8 2.3     0.330   2.6 0.220     0.570       0.425   1.7 12.0
1982-06-07 15:25
 MDT
 T
 WS
 USGS-WRD
 15           13 1.60     0.270           0.83 65.0
1982-10-06 13:15
 MDT
 T
 WS
 USGS-WRD
 2.8 1.8     0.330   2.1 0.700     0.310       0.425   0.95 12
1982-11-18 08:20
 MST
 T
 WS
 USGS-WRD
 2.3 1.7     0.400   2.1 0.200     0.180       0.515   0.55 10
1983-02-07 13:45
 MST
 T
 WS
 USGS-WRD
 < 1.6 1.3     0.200   1.5 < 0.100     0.130       0.258   0.40 < 7.1
1983-02-23 14:15
 MST
 T
 WS
 USGS-WRD
 3.3 2.4     0.820   3.2 0.100     0.580       1.06   1.8 15
1983-03-30 15:25
 MST
 T
 WS
 USGS-WRD
 < 1.7 1.5     0.110   1.6 < 0.100     0.140       0.142   0.43 < 7.5
1983-05-11 09:45
 MDT
 T
 WS
 USGS-WRD
 < 1.4 1.1     0.220   1.3 < 0.100     0.040       0.283   0.12 < 6.2
1984-02-02 12:55
 MST
 T
 WS
 USGS-WRD
 2.8 2.2     0.310   2.5 0.300     0.430       0.399   1.3 12
1984-06-25 13:25
 MDT
 T
 WS
 USGS-WRD
 < 4.6 3.9     0.620   4.5 < 0.100     0.850       0.798     < 20
1984-08-22 11:40
 MDT
 T
 WS
 USGS-WRD
 1.3 0.82     0.180   1.0 0.300     0.100       0.232     5.8
1985-02-28 09:25
 MST
 T
 WS
 USGS-WRD
 3.9 2.9     0.30   3.2 0.70     0.55       0.386     17
1985-04-02 13:50
 MST
 T
 WS
 USGS-WRD
 4.3 3.6     0.05   3.6 0.70     1.30       0.064     19
1985-07-31 09:50
 MDT
 T
 WS
 USGS-WRD
             18       7.40           23  
1985-08-13 13:00
 MDT
 T
 WS
 USGS-WRD
 2.2 1.5     0.12   1.6 0.60     0.36       0.155   1.1 9.7
2004-03-10 17:00
 MST
 K
 WS
 USGS-WRD
   4.1   0.012   0.018     0.732   1.14   E 0.005 4.87   0.015    
2004-05-24 15:30
 MDT
 K
 WS
 USGS-WRD
   < 0.77   < 0.010   0.015     1.27   5.29   0.009 2.04   < 0.013    
2004-06-16 13:00
 MDT
 K
 WS
 USGS-WRD
   5.5   0.146   0.038     0.866   3.01   0.036 6.54   0.188    
2004-07-06 12:00
 MDT
 K
 WS
 USGS-WRD
   5.5   0.022   0.024     0.398   1.52   0.013 5.91   0.028    
2004-07-13 14:30
 MDT
 K
 WS
 USGS-WRD
   6.6   0.091   0.026     0.213   1.43   0.017 6.86   0.117    
2004-09-28 11:34
 MDT
 K
 WS
 USGS-WRD
   E 1.2   E 0.007   0.021     0.308   0.157   < 0.006 1.53   E 0.009    
2004-11-02 10:35
 MST
 K
 WS
 USGS-WRD
   E 4.7   E 0.009   0.019     2.27   2.60   0.011 7.00   E 0.012    
2005-04-06 17:00
 MDT
 K
 WS
 USGS-WRD
   < 0.84   E 0.005   < 0.002     < 0.016   0.054   < 0.006 0.85   E 0.006    
2005-06-08 12:00
 MDT
 K
 WS
 USGS-WRD
   E 4.3   E 0.007   0.012     0.459   1.18   0.009 4.79   E 0.009    
2005-10-05 11:15
 MDT
 K
 WS
 USGS-WRD
   2.7   0.082   0.024     1.03   1.64   0.051 3.86   0.106    
2005-12-12 13:15
 MST
 K
 WS
 USGS-WRD
   E 0.83   0.016   0.002     E 0.015   0.062   < 0.006 0.86   0.021    
2006-03-07 08:00
 MST
 K
 WS
 USGS-WRD
   1.8   0.025   0.004     0.082   0.34   0.016 1.89   0.032    
2006-04-05 13:15
 MDT
 K
 WS
 USGS-WRD
   3.5   0.013   0.008     0.484   0.81   E 0.004 3.98   0.017    
2006-05-16 18:00
 MDT
 K
 WS
 USGS-WRD
   < 0.84   E 0.007   E 0.001     < 0.016   0.046   < 0.006 0.85   E 0.009    
2006-10-03 16:15
 MDT
 K
 WS
 USGS-WRD
   E 1.9   E 0.017   0.022     0.391   0.32   < 0.006 2.27   E 0.022    
2007-02-23 08:30
 MST
 K
 WS
 USGS
   E 2.9   E 0.01   0.017     0.369   0.64   0.171 3.26   E 0.015    
2007-04-10 08:30
 MDT
 K
 WS
 USGS-WRD
   < 0.99   < 0.02   0.005     0.144   0.154   0.012 1.13   < 0.026    
2007-05-22 12:15
 MDT
 K
 WS
 USGS-WRD
   < 1.1   E 0.01   < 0.002     < 0.016   0.070   E 0.005 1.10   E 0.013    
2008-04-21 14:15
 MDT
 K
 WS
 USGS-WRD
   < 0.68   < 0.02   E 0.002     < 0.016   0.045   E 0.003 0.68   < 0.026    
2008-07-08 08:30
 MDT
 K
 WS
 USGS-WRD
   < 1.6   E 0.02   E 0.002     < 0.016   0.221   0.009 1.59   E 0.023    
2009-04-09 10:00
 MDT
 K
 WS
 USGS-WRD
   < 0.84   E 0.01   E 0.001     < 0.016   0.093   E 0.007 0.85   E 0.016    
2009-06-24 17:15
 MDT
 K
 WS
 USGS
   < 1.4   E 0.01   E 0.001     < 0.016   0.079   E 0.005 1.38   E 0.016    
2010-05-04 08:00
 MDT
 K
 WS
 USGS
   E 2.1   E 0.55   < 0.200     0.377   0.74   E 0.072 3.04   E 0.703    
2010-07-13 14:30
 MDT
 K
 WS
 USGS
   < 1.2   0.02   < 0.002     < 0.016   0.052   E 0.006 1.20   0.031    
2011-05-09 12:15
 MDT
 K
 WS
 USGS
   < 1.0   0.04   0.001     < 0.008   0.075   0.008 1.07   0.056    
2011-07-13 11:00
 MDT
 K
 WS
 USGS-WRD
   1.3   0.15   0.002     0.055   0.063   0.008 1.49   0.191    
2012-05-08 14:15
 MDT
 K
 WS
 USGS-WRD
   1.1   0.16   0.002     0.05   0.071   < 0.004 1.28   0.208    
2013-07-25 08:00
 MDT
 K
 WS
 USGS-WRD
 1.3 < 1.4 < 0.75 < 0.01   < 0.001     < 0.01   0.345   0.004 1.45   < 0.013    
2013-08-13 13:45
 MDT
 K
 WS
 USGS-WRD
 1.2 < 1.2 < 0.85 < 0.01   0.003     0.02   0.166   0.005 1.18   < 0.013    
2014-07-10 11:15
 MDT
 K
 WS
 USGS-WRD
 1.2 < 1.0 < 0.87 0.01   0.002     < 0.01   0.057   < 0.004 1.03   0.017    
2015-08-12 08:30
 MDT
 K
 WS
 USGS-WRD
   1.6   0.03   0.007     0.26   0.550   0.013 1.87   0.042    
2016-09-07 11:00
 MDT
 K
 WS
 USGS-WRD
   E 5.5   E 0.05   E 0.026     E 0.76   3.89   E 0.021 6.26   E 0.059    
2017-09-21 12:30
 MDT
 K
 WS
 USGS-WRD
   1.3   0.01   0.041     1.22   0.561   0.021 2.54   0.014    

Water Quality Remark Code Description
< Less than
E Estimated