southern resources mapping corporation reliability. quality. integrity - since 1974 color infrared...

Southern Southern Resources Resources Mapping Mapping

CorporationCorporation

Reliability. Quality. Integrity - Since 1974

COLOR INFRAREDFAILING SEPTIC TANK

IDENTIFICATION STUDY

What is it? How’s it What is it? How’s it work?work?

Southern Resources Southern Resources MappingMapping

Technology has been around for decades. Technology has been around for decades. (EPA (EPA report 1985)report 1985)

Color-Infrared (CIR) - vigorous growth = dark redColor-Infrared (CIR) - vigorous growth = dark red

Early spring – Emergent grassEarly spring – Emergent grass

Failing septic systems - CIR signatureFailing septic systems - CIR signature

Failure types:Failure types:• Surface:Surface: above ground flowabove ground flow• Seasonal:Seasonal: indications of wastewater, indications of wastewater,

no surface accumulationno surface accumulation• Seasonal stress:Seasonal stress: enhanced vegetationenhanced vegetation

Study AreaStudy Area

Southern Resources Southern Resources MappingMapping

Three mile radius of Three mile radius of the Lakes of the Lakes of TuscaloosaTuscaloosa

(Tuscaloosa, Nicol, (Tuscaloosa, Nicol, Harris)Harris)

Approx. 167 sq. mi.Approx. 167 sq. mi.

ProcedureProcedure

Southern Resources Southern Resources MappingMapping

March 19:March 19: Acquired CIR photographyAcquired CIR photography

Southern Resources Southern Resources MappingMapping

14 flight lines14 flight lines151 photos151 photosat 6,300’at 6,300’1”=1000’ Neg 1”=1000’ Neg scalescaleEach pixel = Each pixel = 0.95’0.95’Each photo = Each photo = 272MB272MB

ProcedureProcedure

Southern Resources Southern Resources MappingMapping

March 19:March 19: Acquired CIR photographyAcquired CIR photography

Mar 19 – May 14:Mar 19 – May 14: Sample set identification (20 sites)Sample set identification (20 sites)

Southern Resources Southern Resources MappingMapping

Southern Resources Southern Resources MappingMapping

ProcedureProcedure

Southern Resources Southern Resources MappingMapping

March 19:March 19: Acquired CIR photographyAcquired CIR photography

Mar 19 – May 14:Mar 19 – May 14: Sample set identification (20 sites)Sample set identification (20 sites)

May 25:May 25: Field inspection of sample setField inspection of sample set(City and County Health Department)(City and County Health Department)

ProcedureProcedure

Southern Resources Southern Resources MappingMapping

Location ClassificationsLocation Classifications

Do not mark:Do not mark: Discoloration, but no distinctive Discoloration, but no distinctive patternpattern

Possible Failure:Possible Failure: Some evidence of field lines/tank spotSome evidence of field lines/tank spot

Probable Failure:Probable Failure: Strong evidence of field lines/tank spotStrong evidence of field lines/tank spot

Likely Failure:Likely Failure: Strong evidence of field lines/tank spotStrong evidence of field lines/tank spotOver-ground flowOver-ground flow

ProcedureProcedure

Southern Resources Southern Resources MappingMapping

March 19:March 19: Acquired CIR photographyAcquired CIR photography

Mar 19 – May 14:Mar 19 – May 14: Sample set identification (20 sites)Sample set identification (20 sites)

May 25:May 25: Field inspection of sample setField inspection of sample set(City and County Health Department)(City and County Health Department)

May 24 – Sept 10:May 24 – Sept 10: CIR examination and report CIR examination and report prepprep

FindingsFindings

Southern Resources Southern Resources MappingMapping

FindingsFindings

Southern Resources Southern Resources MappingMapping

44

77

183183

Likely FailuresLikely Failures

Probable FailuresProbable Failures

Possible FailuresPossible Failures

CIR investigation CIR investigation found:found:

Health Department Health Department investigation:investigation:

March 7, 2011March 7, 20113 failing, 1 vacant3 failing, 1 vacant

4 failing, 2 false positive, 1 4 failing, 2 false positive, 1 vacant vacant

Catalogued for future useCatalogued for future use

FindingsFindings

Southern Resources Southern Resources MappingMapping

Likely Failures – 100% success rateLikely Failures – 100% success rate

Likely and Probable Failures – 78% success Likely and Probable Failures – 78% success raterate

Nearly 100% success rate of locating septic Nearly 100% success rate of locating septic systemssystems

Southern Southern Resources Resources Mapping Mapping

CorporationCorporation

Reliability. Quality. Integrity - Since 1974

COLOR INFRAREDFAILING SEPTIC TANK

IDENTIFICATION STUDY

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