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Station Info: PL1202

 
Station ID Year Jurisdiction Watershed Location Description     Latitude         Longitude    
PL1202 2012 Plano Headwaters White Rock Creek North of Plano Parkway at White Rock Creek 33.0164546 -96.8138784

Sampled Events

1st Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
1/9/2012 12:15:00 AM 1/9/2012 3:20:00 PM Heavy rain moved across the area from the west. PL1202 0.67 0.26 485
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
1/9/2012 1:05:00 AM 1/9/2012 3:35:00 AM 1:12:00 AM 3:12:00 AM 6 3.3 1.5 3.5 46 51 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 Cadmium
332 32 3.52 <1 U 15.2 0.01 0.21 <0.06 U <0.002 U <0.003 U 0.029 <0.004 U 0.277 ** **
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 8.5 1200 8000 656

2nd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
4/8/2012 12:30:00 PM 4/8/2012 4:05:00 PM An area of showers and thunderstorms developed throughout the vicinity and proceeded to the southeast. NT1202 0.45 0.21 119
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
4/8/2012 12:45:00 PM 4/8/2012 3:54:00 PM 4/8/2012 1:54:00 PM 4/8/2012 3:54:00 PM 6 2 0.5 3.5 68 70 Flow was observed to be rising at the time of sample collection. Due to a malfunction with the automatic sampler the sample was collected manually. 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 Cadmium
306 18 3.5 7 5.66 0.09 <0.05 U <0.06 U 0.005 J <0.003 U <0.029 <0.004 U 0.015 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
<1.4 U 8.5 4000 60000 486

3rd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
9/13/2012 12:44:00 PM 9/13/2012 1:35:00 PM An area of heavy showers developed over the southern portion of the White Rock Creek watershed. PL1202 0.18 0.18 616
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
9/13/2012 12:30:00 PM 9/13/2012 3:00:00 PM 9/13/2012 12:45:00 PM 9/13/2012 2:52:00 PM 6 0.7 0.6 3.5 75 78.4 An additional aliquot was recorded by the automatic sampler for bottle 3 that was not collected. 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 Cadmium
242 14.5 17 31 8.38 0.005 J 0.14 <0.06 U 0.004 J <0.003 U 0.031 <0.004 U 0.075 ** **
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 7.5 18000 120000 586

4th Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
10/14/2012 12:15:00 AM 10/14/2012 3:05:00 AM A frontal boundary moved across the Metroplex brining area wide showers and thunderstorms. PL1202 0.67 0.65 327
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
10/14/2012 1:17:00 AM 10/14/2012 3:45:00 AM 10/14/2012 1:17:00 AM 10/14/2012 3:20:00 AM 6 21.4 3.5 70 68.4 The bubbler tubing was dislodged by high flow early in the sample collection routine. The average depth could not be determined. The flow end time and date are a result of the sampling equipment being removed at the conclusion of the sampling activities. An additional aliquot was reported by the instrument due to a false start at the sequence initiation.
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
238 459 15.8 72 11.2 0.03 0.16 <0.06 U 0.004 J 0.004 J 0.028 0.005 J 0.025 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
3.6 J 7.8 7000 60000 389

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
PL1201 203.5 435.8 11.9 58 10.588 0.0268 0.191 0.0375 0.004 0.008 0.0368 0.008 0.0625 4.4 835 38234 8.12 307
PL1202 279.5 130.9 10 27.6 10.11 0.0338 0.134 0.03 0.004 0.002 0.0256 0.003 0.098 1.43 4959 43116 7.87 529.25

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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