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Station Info: GA0901

 
Station ID Year Jurisdiction Watershed Location Description     Latitude         Longitude    
GA0901 2009 Garland Lower Rowlett Creek Rowlett Creek at E. Brand Road 32.9736083 -96.6243166

Sampled Events

1st Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
1/5/2009 8:05:00 AM 1/5/2009 2:40:00 PM A large disturbance consisting of rain and freezing rain moved from the northwest to the southeast across the area. GA0901 0.26 0.11 213
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
1/5/2009 10:40:00 AM 1/5/2009 2:40:00 PM 11:07:00 AM 1:13:00 PM 6 1 0.5 3.5 31 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)
488 2 J 2.72 23 7.9 0.63 0.646 *** <0.01 U <0.01 U <0.01 U <0.01 U 0.042 <0.037 U <0.01 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
2.6 J 7.88 8.95 <1 400 ***

2nd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
4/12/2009 3:30:00 AM 4/12/2009 9:55:00 AM An unstable air mass moved from the northwest to the southeast across the area bringing heavy rainfall and thunderstorms. GA0901 1.06 0.69 238
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
4/12/2009 5:52:00 AM 4/12/2009 8:40:00 PM 5:52:00 AM 7:57:00 AM 6 7.4 2.6 3.5 58 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
(µg/L)
Cadmium
Total (mg/L)
432 578 5.65 52 4.9 0.17 J 0.38 *** 0.006 J 0.005 J 0.054 J 0.011 J 0.07 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 7.8 9.1 3100 430000 ***

3rd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
7/8/2009 5:06:00 PM 7/8/2009 5:40:00 PM An isolated, heavy thunderstorm crossed the region from the northeast. KTXRICHA21 0.89 0.89 216
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
7/8/2009 6:29:00 PM 7/8/2009 8:50:00 PM 6:29:00 PM 8:33:00 PM 6 4.6 3.4 3.5 88 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)
216 362 9.96 43.5 3.6 0.15 0.28 *** 0.004 J 0.004 J 0.043 0.004 J 0.021 <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 7.67 7.75 2700 510000 ***

4th Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
10/1/2009 6:15:00 PM 10/1/2009 7:05:00 PM A line of showers and thunderstorms moved across the region from the northwest to the southeast preceding a cool front. GA0901 0.26 0.26 234
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
10/1/2009 6:20:00 PM 10/1/2009 9:05:00 PM 6:28:00 PM 8:33:00 PM 6 1.2 0.6 3.5 62 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)
518 44 1.84 2.15 J 7.8 0.3 0.29 *** <0.002 U <0.003 U 0.008 J <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 7.53 7.74 80 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
GA0901 413.5 246.5 5 30.2 6.05 0.3125 0.399 0.004 0.004 0.0275 0.006 0.0336 0.0185 0.0016 1.18 135 63037 7.7 8.02
GA0902 364 405.5 6.3 44.7 3.1 0.1233 0.268 0.004 0.003 0.0113 0.005 0.0279 0.0185 0.0016 0.7 467 76175 7.73 8.31
GA0903 329.5 187.5 2.7 25.5 5.5 0.1288 0.174 0.002 0.002 0.0258 0.004 0.0211 0.0185 0.0005 3.03 175 41816 7.69 8.01

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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