nctcog logo
 
environment & development label
 
  Back to Station Map          Back to Main Monitoring Page          Export Data

Station Info: IR0701

 
Station ID Year Jurisdiction Watershed Location Description     Latitude         Longitude    
IR0701 2007 Irving Cottonwood Branch Cottonwood Branch at Beltline Road 32.8671016 -96.9915333

Sampled Events

1st Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
1/3/2007 11:05:00 PM 1/4/2007 4:35:00 AM An area of low pressure brought rain showers across the metroplex moving from the southwest to the northeast IR0703 0.98 0.33 118
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
1/3/2007 11:15:00 PM 1/4/2007 5:45:00 PM 1/3/2007 11:18:00 PM 1/4/2007 1:49:00 AM 7 0.896 0.205 4 An additional aliquot was collected at the end of the program due to programming modifications. The sample is considered valid
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
(µg/L)
Cadmium
Total (mg/L)
255 682 <3 U 19 25.8 <0.05 U <0.05 U *** <0.002 U 0.006 J <0.008 U <0.004 U 0.0305 J <0.037 U <0.001 U
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 7.04 700 19900 ***

2nd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
4/3/2007 6:45:00 PM 4/3/2007 7:30:00 PM Thunderstorm developed across the metroplex along a cold front that moved into the area from the northwest to southeast IR0703 0.24 0.23 84
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
4/3/2007 6:50:00 PM 4/3/2007 10:05:00 PM 4/3/2007 6:53:00 PM 4/3/2007 9:25:00 PM 7 0.511 0.066 4 An additional aliquot was collected at the end of the program. The program needs to be modified. The sample is considered valid. All aliquots were successfully collected.
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
(µg/L)
Cadmium
Total (mg/L)
192 602 <3 U <10 U 18.6 <0.05 U <0.05 U *** <0.002 U 0.041 J 0.0378 J 0.009 J 0.0884 J <0.037 U <0.001 U
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 8.12 90 8470 ***

3rd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
7/13/2007 10:45:00 AM 7/13/2007 11:15:00 AM Thunderstorms developed across the metroplex along a cold front that moved into the area from northwest to southeast IR0701 0.62 0.25 192
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
7/13/2007 11:40:00 AM 7/13/2007 2:30:00 PM 7/13/2007 11:42:00 AM 7/13/2007 1:44:00 PM 6 1 0.295 3.5 All aliquots were successfully collected
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
(µg/L)
Cadmium
Total (mg/L)
304 1060 19.6 102 2.7 0.365 <0.05 U *** 0.002 J <0.003 U <0.008 U <0.004 U <0.003 U <0.037 U <0.001 U
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 7.02 6.87 2600 12000 ***

4th Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
10/15/2007 12:45:00 AM 10/15/2007 1:40:00 AM Thunderstorms developed across the Metroplex along a cold front that moved into the area from southwest to northeast. IR0703 0.78 0.2 168
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
10/15/2007 12:40:00 AM 10/15/2007 3:30:00 AM 12:44:00 AM 2:46:00 AM 6 1.15 0.241 3.5 72 All aliquots were successfully collected.
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
(µg/L)
Cadmium
Total (mg/L)
316 137 9.56 37 <0.05 U <0.05 U 0.33 *** 0.005 J 0.008 J 0.0182 J <0.004 U 0.057 J <0.037 U <0.001 U
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 7.43 7.57 8670 180000 ***

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
IR0701 266.8 620.3 8 40.8 11.781 0.11 0.101 0.002 0.014 0.016 0.004 0.0444 0.0185 0.0005 0.7 1092 24564 7.24 7.39
IR0702 500 197.3 36.5 48 12.173 0.0703 0.112 0.007 0.008 0.0157 0.002 0.0346 0.0185 0.0005 0.98 831 1648 7.56 7.46
IR0703 231 54.9 5.7 56 10.4 0.0645 0.025 0.002 0.005 0.0132 0.002 0.0131 0.0185 0.0005 2 247 1205 7.6 7.45

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.  


Back to Station Map          Back to Main Monitoring Page          Export Data
 
 CONTACT US | SITE MAP | LEGAL | SYSTEM REQUIREMENTS
 North Central Texas Council of Governments | 616 Six Flags Drive P.O. Box 5888 Arlington, TX 76005-5888
 Main Operator: (817) 640-3300 | Fax: (817) 640-7806