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Profile and Survey of Laboratory Proficiency Water and Wastewater Treatment Systems Division of Technical Assistance an

Profile and Survey of Laboratory Proficiency Water and Wastewater Treatment Systems Division of Technical Assistance and Outreach Bureau of Water Supply and Wastewater Management October 2003. Purposes of Surveys and Profile.

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Profile and Survey of Laboratory Proficiency Water and Wastewater Treatment Systems Division of Technical Assistance an

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  1. Profile and Survey of Laboratory Proficiency Water and Wastewater Treatment Systems Division of Technical Assistance and Outreach Bureau of Water Supply and Wastewater Management October 2003

  2. Purposes of Surveys and Profile 1. Determine level of laboratory proficiency in the regulated community. 2. Identify laboratory proficiency weaknesses and strengths. 3. Compare use and effectiveness of on-site labs verses off-site labs. 4. Determine the possible impacts of the Environmental Lab Accreditation Act (ELAA). 5. Determine the regulated community’s understanding of the ELAA.

  3. Surveys Water Systems Wastewater Systems Profile Wastewater Systems Environmental Training Partnership Staff 350 sites 10 years of experience DEP Regional Staff and system owners 170 systems approximate ratio of prevalence

  4. 110 systems 47% 90 systems 39% 10 20 10 17 2 10 30 2 systems 1% 5 24 30 systems 13% 2 28 4 DNR DNR 10 30 30 0% 20% 40% 60% 80% 100% Findings Water and Wastewater systems have problems with laboratory proficiency. Wastewater

  5. 26 systems 20% 30+ systems 22% 33+ systems 25% 42 systems 31% 0% 20% 40% 60% 80% 100% 2 systems 2% 20 DNR DNR 12 2 25 25 10 2 4 5 8 20 Findings Water and Wastewater systems have problems with laboratory proficiency. Water

  6. Wastewater On-site labs comparable to off-site labs Wastewater Sampling and preservation QA/QC Residual Chlorine analysis Dissolved Oxygen analysis Knowledge, skills and abilities BOD-CBOD analysis Ammonia – N analysis Fecal Coliform analysis Findings Laboratory proficiency has identifiable weakness and strengths. Weaknesses Strengths

  7. Water On-site labs comparable to off-site labs Water Sampling and preservation QA/QC Residual Disinfection analysis Turbidity Knowledge, skills and abilities Nitrate analysis Fecal Coliform analysis Findings Laboratory proficiency has identifiable weakness and strengths. Weaknesses Strengths

  8. Findings The Environmental Laboratory Accreditation Act will have minimal impact on: 1. Water systems because existing Chapter 109 provides a laboratory accreditation program. 2. Small wastewater systems because they currently send most of their analyses to private laboratories. 3. Large to medium large wastewater systems because many have fully staffed and equipped laboratories that will have no problems meeting ELAA requirements. The Environmental Accreditation Act will have an moderate impact on: 1. Wastewater systems having flows greater than 100,000 to 1 mgd. 2. Half the wastewater systems having flows greater than 1 mgd to 5 mgd.

  9. Current provider of analysis for systems with less than 100,000 gallons Off-site Analysis On-site Analysis 0 40 60 20 20 40 60 Alkalinity Ammonia-N BOD/CBOD Color Conductivity Dissolved Oxygen Fecal Coliform Flow Foam Nitrate Odor Sheen Sludge Vol. Index Solids Solids (Settleable) Sulfite Temperature Turbidity Volatile Acids Ortho-phosphate Oxidation Reduction Pot. pH Residual Disinfection Conc.

  10. Note: data doesn’t support responses Solids < 100,000 Ammonia -N Analysis that would be done off-site as the result of the Environmental Lab Accreditation Act (most common) BOD/CBOD Fecal Coliform 100,000 mgd to1 mgd Solids Ammonia -N BOD/CBOD Fecal Coliform 1 mgd to 5 mgd Solids Ammonia -N BOD/CBOD Fecal Coliform Solids > 5 mgd Ammonia -N BOD/CBOD Fecal Coliform All size systems Solids Ammonia -N BOD/CBOD Fecal Coliform 0 10 20 30 40

  11. Don't Know Don't Know No Impact No Impact Slight Slight Moderate Moderate Moderately Significant Moderately Significant Significant Significant Very Significant Very Significant 0 20 40 60 80 0 20 40 60 80 < 100,000 gallons .1 mgd to 1 mgd Don't Know Don't Know No Impact No Impact Slight Slight Moderate Moderate Moderately Significant Moderately Significant Significant Significant Very Significant Very Significant 0 20 40 60 80 0 20 40 60 80 Greater 5 mgd 1 mgd to 5 mgd Findings The smaller the wastewater system, the less the regulated community understands the requirements and impacts of the Environmental Laboratory Accreditation Act. Impact on Operations and Personnel

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