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Station Info: GA0902

 
Station ID Year Jurisdiction Watershed Location Description     Latitude         Longitude    
GA0902 2009 Garland Lower Rowlett Creek Rowlett Creek at SH-78 32.9594833 -96.614625

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 10:00:00 AM 1/5/2009 3:05:00 PM 10:30:00 AM 12:33:00 PM 6 1.6 0.6 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)
430 4 J 2.68 18 4.1 0.188 0.2 *** <0.01 U <0.01 U <0.01 U <0.01 U 0.052 <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
<1.4 U 7.99 9.05 100 700 ***

2nd Quarter:
Storm
Summary
Storm
Start
Storm
End
Description Rainfall
Station
Rainfall
Total (in)
Peak
Rate (in)
Antecedent Dry
Period (hrs)
5/11/2009 7:20:00 AM 5/11/2009 4:04:00 PM Showers and thunderstorms associated with a cool front moved across the region. KTXRICHA21 0.49 0.35 118
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
5/11/2009 11:20:00 AM 5/11/2009 2:20:00 PM 11:22:00 AM 2:15:00 AM 6 9.4 1.9 3.5 61 The bubble module experienced a malfunction during the sample routine resulting in inconsistent level data. The stream rise and flow were verified by the filed team. The flow 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)
452 896 3.8 87 2.5 <0.05 U 0.32 *** 0.003 J 0.003 J <0.008 U 0.006 J 0.029 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 7.6 8.5 4800 650000 ***

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 6:20:00 PM 7/8/2009 8:35:00 PM 6:21:00 PM 8:33:00 PM 6 3.2 1.9 3.5 88 The sampling equipment was deployed during the day of the storm event due to prior vandalism. 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)
236 590 12.3 40.1 2.2 0.1 0.35 *** 0.006 J 0.004 J 0.028 0.006 J 0.029 <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 7.73 9.41 1100 370000 ***

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 6:40:00 PM 10/1/2009 8:50:00 PM 6:42:00 PM 8:47:00 PM 6 1.8 0.7 3.5 62 The sampling equipment was deployed during the storm event due to prior vandalism. The flow end time and date are a result of the sampling equipment being removed at the conclusion of the sampling activities. During the storm, the bubbler line became loose in the water column due to high flow. The area was dark and the slope was too steep and slippery to safely reattach.
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)
338 132 6.49 33.5 3.6 0.18 0.2 *** <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 7.69 7.82 90 200000 ***

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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