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Great Lakes Environmental Center, Inc. <br />Nutrient Chemistry Department <br />739 Hastings St., Traverse City, MI 49686 <br />231-941-2230 phone • 231-941-2240 fax • www.glec.com <br /> <br /> <br /> <br /> <br />GLEC Quotation <br />to <br />Aaron Chen, Lake Monitoring <br />For work in 2025 <br /> <br />December 18, 2024 <br /> <br />GLEC appreciates this opportunity to provide a quotation for analytical services for lake <br />monitoring samples collected in Monroe, WA. The table below summarizes the project <br />parameters, reporting limits (RLs), method detection limits (MDLs), preservatives, holding times <br />and costs. GLEC is NELAP accredited for the tests requested. <br /> <br />Parameters <br />RL <br />(mg/L) <br />MDL <br />(mg/L) <br />Holding <br />Time <br />Methods Preservation Price per <br />Sample for < <br />5 samples1 <br />Price per <br />Sample for > <br />4 samples1 <br />Chlorophyll a <br />0.0005 0.00002 Filtration <br />48 hours, <br />Analysis 3 <br />weeks <br />10200 H Keep frozen <br />until transport, <br />then transport <br />on ice <br />$72.00 $68.00 <br />Chlorophyll a – no <br />filtration apparatus <br />0.0005 0.00002 Filtration <br />48 hours, <br />Analysis 3 <br />weeks <br />10200 H Keep frozen <br />until transport, <br />then transport <br />on ice <br />$70.00 $66.00 <br />Total Nitrogen 0.05 0.0144 28 Days 4500-N C Cool, ≤6°C $66.00 $55.00 <br /> <br />Ammonia Nitrogen <br />0.04 0.021 28 Days 4500-NH3 G H2SO4, ≤6°C $44.00 $38.00 <br />Nitrate-nitrogen <br />when nitrite- <br />nitrogen also <br />ordered <br />0.005 0.00273 28 Days 4500-NO3 F & <br />4500-NO2 B <br />≤6°C $38.00 $32.00 <br />Nitrate-nitrogen <br />when nitrite- <br />nitrogen not ordered <br />0.005 0.00273 28 Days 4500-NO3 F & <br />4500-NO2 B <br />≤6°C $71.00 $60.00 <br />Nitrite-nitrogen 0.005 0.00072 48 hours 4500-NO2 B ≤6°C $34.00 $29.00 <br />Nitrate/nitrite- <br />nitrogen <br />0.005 0.00273 28 Days 4500-NO3 F H2SO4, ≤6°C $38.00 $32.00 <br />Total Phosphorus 0.003 0.00137 28 Days 4500-P F H2SO4, ≤6°C $38.00 $34.00 <br />Total Phosphorus <br />low level <br />0.001 0.000497 28 Days 4500-P F H2SO4, ≤6°C $50.00 $45.00 <br />Soluble Reactive <br />Phosphorus <br />0.001 0.00037 Filter 24 <br />hours, <br />Analysis 28 <br />days <br />4500-P F Cool, ≤6°C $45.00 $40.00 <br />Silca <br />(subcontracted) <br />0.1 0.023 28 days 4500-S1 D11 Cool, ≤6°C $57.00 $52.00 <br />Subcontractor <br />charge for silica <br /> $50 per <br />sample set <br />receipt <br />$50 per <br />sample set <br />receipt <br />1In an 8 day period.