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

Station Info: PL0702

 
Station ID Year Jurisdiction Watershed Location Description     Latitude         Longitude    
PL0702 2007 Plano White Rock Creek White Rock Creek at Hedgcoxe Road 33.08275 -96.7983888

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 11:30:00 PM 1/4/2007 2:10:00 AM An area of low pressure brought rain showers across the metroplex moving from the southwest to the northeast PL0702 0.76 0.3 106
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 11:40:00 PM 1/5/2007 6:50:00 PM 1/3/2007 11:40:00 PM 1/4/2007 2:10:00 AM 7 4.57 2.3 4 All aliquots were successfully collected. 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)
290 77.5 <3 U 13.1 4.56 <0.05 U <0.05 U *** 0.01 J 0.004 J <0.008 U 0.005 J 0.0299 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 7.62 6.34 100 6500 ***

2nd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
4/24/2007 2:30:00 PM 4/24/2007 5:10:00 PM A line of showers and thunderstorms associated with a cold frontal system moved across the metroplex traveling from the northwest PL0702 0.89 0.75 162
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
4/24/2007 3:00:00 PM 4/24/2007 5:05:00 PM 4/24/2007 3:01:00 PM 4/24/2007 5:04:00 PM 6 6.1 3.4 3.5 The sampling equipment was removed at the conclusion of the 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
(µg/L)
Cadmium
Total (mg/L)
507 437 <3 U 7 2.8 0.138 1.54 *** <0.002 U 0.03 J 0.14 J 0.022 J 0.141 J <0.037 U 0.00273 J
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
11.4 8.89 7.82 15000 50000 ***

3rd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
7/29/2007 1:55:00 PM 7/29/2007 3:00:00 PM An area of scattered thunderstorms moved across the region from the South PL0702 0.28 0.28 165
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
7/29/2007 2:00:00 PM 7/29/2007 4:10:00 PM 7/29/2007 2:02:00 PM 7/29/2007 4:05:00 PM 6 1 0.7 3.5 The flow end time and date are a result of the sampling equipment being removed at the conclusion of the 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
(µg/L)
Cadmium
Total (mg/L)
664 13 6.57 23.6 1 <0.05 U 0.0563 *** <0.002 U <0.003 U 0.027 J <0.004 U 0.051 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
6.2 7.81 8.14 12000 91300 ***

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 3:00:00 AM Wide spread showers and thunderstorms developed in advance of a cold front moving across the DFW Metroplex. PL0702 1.1 1.08 151
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 12:54:00 AM 10/15/2007 3:00:00 AM 12:54:00 AM 2:57:00 AM 6 7.7 4.9 3.5 68 The flow end time and date are a result of the sampling equipment being removed at the conclusion of the 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
(µg/L)
Cadmium
Total (mg/L)
196 251 6.47 62 2 <0.05 U 0.43 *** <0.002 U 0.012 J 0.01842 J <0.004 U 0.038 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 7.77 8.68 8000 186000 ***

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
PL0702 414.3 194.6 4 26.4 2.59 0.0533 0.513 0.003 0.012 0.0474 0.008 0.065 0.0185 0.0011 4.75 3464 48469 7.84 6.92
PL0703 322.5 74.9 3.9 19.7 1.958 0.025 0.082 0.002 0.005 0.0206 0.003 0.0372 0.0185 0.0005 0.95 662 4641 7.53 6.93
PL0704 517.5 68.9 3.8 27.7 1.351 0.025 0.101 0.001 0.003 0.016 0.004 0.0316 0.0185 0.0005 1.6 561 5947 7.51 6.96

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