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Station Info: NT1401

 
Station ID Year Jurisdiction Watershed Location Description     Latitude         Longitude    
NT1401 2014 NTTA Prairie Creek - Elm Fork Trinity River Unnamed Tributary at SRT N. of Hebron Pkwy 33.024741 -96.931512

Sampled Events

1st Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
1/10/2014 1:00:00 AM 1/10/2014 10:45:00 AM Rain moved in from the southwest bringing very light rainfall during the early morning hours, followed by scattered concentrated light rainfall in the afternoon hours. NT1401 0.11 0.03 468
Collection
Info
Flow
Start
Flow
End
1st Aliquot
Collected
Last Aliquot
Collected
# Aliquots
Collected
Peak
Depth (ft)
Avg
Depth (ft)
Sample
Volume (gal)
Ambient Air
Temp (°F)
Water
Temp (°F)
Sample
Comments
1/10/2014 4:25:00 AM 1/10/2014 10:10:00 AM 1/10/2014 7:58:00 AM 1/10/2014 10:00:00 AM 6 0.5 0.3 3.5 56 51 The flow end time and date are a result of the sampling equipment being removed at the conclusion of sampling activities.
Composite TDS
(mg/L)
TSS
(mg/L)
BOD
(mg/L)
COD
(mg/L)
Nitrogen
Total (mg/L)
Phosphorus
Dissolved (mg/L)
Phosphorus
Total (mg/L)
Carbaryl
Total (mg/L)
Arsenic
Total (mg/L)
Chromium
Total (mg/L)
Copper
Total (mg/L)
Lead
Total (mg/L)
Zinc
Total (mg/L)
Diazinon Cadmium
1720 155 3 52 1.55 0.32 0.49 <0.06 U 0.002 J 0.007 J 0.039 <0.004 U 0.038 ** **
Grab Oil & Grease
(mg/L)
pH Lab
(su)
pH Field
(su)
E.Coli
(col/100mL)
Total Coliform
(col/100mL)
Specific Conductivity
(uS/cm)
  PDF icon  Download Lab Report
2.3 J 8.7 1300 88000 1730

2nd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
4/3/2014 8:18:00 PM 4/3/2014 9:00:00 PM Heavy rain moving southwest to northeast. NT1401 0.6 0.6 457
Collection
Info
Flow
Start
Flow
End
1st Aliquot
Collected
Last Aliquot
Collected
# Aliquots
Collected
Peak
Depth (ft)
Avg
Depth (ft)
Sample
Volume (gal)
Ambient Air
Temp (°F)
Water
Temp (°F)
Sample
Comments
4/3/2014 8:30:00 PM 4/3/2014 10:55:00 PM 4/3/2014 8:49:00 PM 4/3/2014 10:51:00 PM 6 1.1 0.6 3.5 78 68.9 The flow end time and date are a result of the sampling equipment being removed at the conclusion of sampling activities. On 04/03/2014 the field team did not collect field data (pH, conductivity, and water temperature). The field team returned during 5/25/2014 storm to collect these parameters.
Composite TDS
(mg/L)
TSS
(mg/L)
BOD
(mg/L)
COD
(mg/L)
Nitrogen
Total (mg/L)
Phosphorus
Dissolved (mg/L)
Phosphorus
Total (mg/L)
Carbaryl
Total (mg/L)
Arsenic
Total (mg/L)
Chromium
Total (mg/L)
Copper
Total (mg/L)
Lead
Total (mg/L)
Zinc
Total (mg/L)
Diazinon Cadmium
408 1368 13 67 7.5 0.36 0.55 <0.06 U <0.002 U 0.012 0.02 <0.004 U 0.047 ** **
Grab Oil & Grease
(mg/L)
pH Lab
(su)
pH Field
(su)
E.Coli
(col/100mL)
Total Coliform
(col/100mL)
Specific Conductivity
(uS/cm)
  PDF icon  Download Lab Report
2.9 J 8.3 1090 22500 523

3rd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
7/17/2014 11:05:00 AM 7/17/2014 2:40:00 PM A large low pressure area moving east across North Texas brought constant rainfall of moderate intensity throughout the day in the Dallas-Fort Worth area. NT1401 0.47 0.34 234
Collection
Info
Flow
Start
Flow
End
1st Aliquot
Collected
Last Aliquot
Collected
# Aliquots
Collected
Peak
Depth (ft)
Avg
Depth (ft)
Sample
Volume (gal)
Ambient Air
Temp (°F)
Water
Temp (°F)
Sample
Comments
7/17/2014 11:35:00 AM 7/17/2014 5:15:00 PM 7/17/2014 11:38:00 AM 7/17/2014 1:54:00 PM 6 1.8 0.8 3.5 70 72
Composite TDS
(mg/L)
TSS
(mg/L)
BOD
(mg/L)
COD
(mg/L)
Nitrogen
Total (mg/L)
Phosphorus
Dissolved (mg/L)
Phosphorus
Total (mg/L)
Carbaryl
Total (mg/L)
Arsenic
Total (mg/L)
Chromium
Total (mg/L)
Copper
Total (mg/L)
Lead
Total (mg/L)
Zinc
Total (mg/L)
Diazinon Cadmium
113 54.33 2.88 23 1.86 0.18 0.21 <0.06 U <0.002 U <0.003 U 0.016 J <0.004 U 0.036 ** **
Grab Oil & Grease
(mg/L)
pH Lab
(su)
pH Field
(su)
E.Coli
(col/100mL)
Total Coliform
(col/100mL)
Specific Conductivity
(uS/cm)
  PDF icon  Download Lab Report
<1.4 U 9 10 6500 366

4th Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
10/2/2014 4:10:00 PM 10/2/2014 4:35:00 PM A line of storms formed northwest of the Dallas Fort-Worth metroplex and moved across the region in a southeast direction bringing light to medium rainfall during the late afternoon and early evening hours. NT1401 0.44 0.44 483
Collection
Info
Flow
Start
Flow
End
1st Aliquot
Collected
Last Aliquot
Collected
# Aliquots
Collected
Peak
Depth (ft)
Avg
Depth (ft)
Sample
Volume (gal)
Ambient Air
Temp (°F)
Water
Temp (°F)
Sample
Comments
10/2/2014 4:15:00 PM 10/2/2014 8:05:00 PM 10/2/2014 4:17:00 PM 10/2/2014 6:23:00 PM 6 2.1 0.7 3.5 73 78.6 None.
Composite TDS
(mg/L)
TSS
(mg/L)
BOD
(mg/L)
COD
(mg/L)
Nitrogen
Total (mg/L)
Phosphorus
Dissolved (mg/L)
Phosphorus
Total (mg/L)
Carbaryl
Total (mg/L)
Arsenic
Total (mg/L)
Chromium
Total (mg/L)
Copper
Total (mg/L)
Lead
Total (mg/L)
Zinc
Total (mg/L)
Diazinon Cadmium
242 49 7.37 74 1.1 0.4 0.62 <0.06 U 0.002 J 0.011 0.022 <0.004 U 0.072 ** **
Grab Oil & Grease
(mg/L)
pH Lab
(su)
pH Field
(su)
E.Coli
(col/100mL)
Total Coliform
(col/100mL)
Specific Conductivity
(uS/cm)
  PDF icon  Download Lab Report
<1.4 U 8.7 1100 116000 206

Station Averages

Station TDS TSS BOD COD Nitrogen Phosphorus
(Dissolved)
Phosphorus
(Total)
Carbaryl Arsenic Chromium Copper Lead Zinc Diazinon Cadmium Oil &
Grease
E.
Coli
Coliform
(Total)
pH
Lab
pH
Field
Specific Conductivity
NT1401 620.8 406.6 6.6 54 3.003 0.315 0.468 0.03 0.002 0.008 0.0243 0.002 0.0483 1.65 353 34955 8.6 706.25
NT1402 221.8 55 4.7 41.3 1.256 0.2425 0.328 0.03 0.002 0.005 0.0285 0.003 0.058 0.9 305 20652 8.66 432

Key:
< or > - Amount detected is above or below equipment detection limit A - Approximate end time of flow due to power failure A-01 - >400000
B-02 - BOD result calculated from COD analysis D-1 - Elevated reporting limit(s) due to dilution. This has no effect on the data. Sample result is considered valid. DET - Analyte Detected
DRY – Sample results reported on a dry weight basis E - End time of flow due to equipment removal from site IS - Insufficient Sediment within Sample
J - Detected but below the reporting limit N/A - Data not available at this time ND - Analyte not detected at or above the reporting limit
NR - Not Reported NST – No Sample Taken U - Undetected
W-05 - Highest possible dilutions were made by the laboratory Qual – Qualifiers Q-5 - Seed correction outside desired limits. This has no effect on the data. Sample result is considered valid.
Q11 - Insufficient sample for analysis of matrix spike. This has no effect on the data. Sample result is considered valid. RPD - Relative Percent Difference S-1 - Laboratory container pH was above desired amount. This has no effect on the data. Sample result is considered valid.
TNTC - Too numerous to count U – Undetected W-05 - Highest possible dilutions were made by the laboratory
     
BOD - Biochemical Oxygen Demand BRL - Below Reading Limit COD - Chemical Oxygen Demand
TDS - Total Dissolved Solids TSS - Total Suspended Solids by EPA 160.2 PC - Sample results suspect due to post-calibration results
**This data was only collected in the second permit term. ***This data is only being collected in the third permit term.  


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