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Station Info: PL1201

 
Station ID Year Jurisdiction Watershed Location Description     Latitude         Longitude    
PL1201 2012 Plano Headwaters White Rock Creek Preston-Hedgcoxe Plaza at White Rock Creek 33.08275 -96.7983889

Sampled Events

1st Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
1/24/2012 5:15:00 PM 1/24/2012 7:40:00 PM A large area of rainfall moved across the vicinity from the southwest. PL1201 0.36 0.29 338
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
1/24/2012 5:15:00 PM 1/24/2012 7:40:00 PM 5:22:00 PM 7:24:00 PM 6 2.9 2 3.5 50 56 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
278 184 4.87 29 16.2 0.007 J 0.1 <0.12 U <0.002 U 0.01 0.044 0.01 0.097 ** **
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 7.89 130 7200 528

2nd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
4/3/2012 1:45:00 PM 4/3/2012 4:00:00 PM A line of severe thunderstorms moved across the region from the west bringing multiple tornados, hail, and heavy rain. NT1201 0.48 0.42 290
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
4/3/2012 3:15:00 PM 4/3/2012 5:40:00 PM 4/3/2012 3:36:00 PM 4/3/2012 5:39:00 PM 6 4.8 3 3.5 67 69.1 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
152 756 17.9 91 8.08 0.01 <0.05 U <0.06 U <0.002 U 0.01 0.035 0.009 J 0.046 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
4.7 J 8.5 320 28000 224

3rd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
7/1/2012 4:35:00 PM 7/1/2012 5:10:00 PM Isolated showers and thunderstorms developed over the northern portion of the Metroplex and proceeded to the southwest. PL1201 0.3 0.3 338
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
7/1/2012 4:40:00 PM 7/1/2012 7:50:00 PM 7/1/2012 5:12:00 PM 7/1/2012 7:46:00 PM 6 2.1 1.1 3.5 85 86 The automatic sampler experienced a malfunction during the program after the first aliquot collection for bottle 2 causing the program to skip the second aliquot of bottle 2. The aliquots for bottles 3 and 4 were collected manually using the sampler and an additional aliquot was sampled for bottle 4 to bring the total number of aliquots to 6. 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
226 123.3 10.29 55 5.67 0.05 0.45 <0.06 U 0.008 J 0.005 J 0.049 0.007 J 0.07 ** **
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
1.7 J 8.4 7800 265000 243

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. PL1201 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 12:25:00 AM 10/14/2012 3:20:00 AM 10/14/2012 1:05:00 AM 10/14/2012 3:07:00 AM 6 7.7 4 3.5 69 60.3 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 is shown on the graph because the last aliquot was collected manually through the sampler due to an error with the automatic sampler. A total of six aliquots were 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 Cadmium
158 680 14.5 57 12.4 0.04 0.19 <0.06 U 0.004 J 0.005 J 0.019 0.006 J 0.037 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
10.5 8 1500 40000 233

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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