1905_DeanBrooks_Comp_AFR14-15

State of North Carolina
Depafirlent of Environrnent and Natural Resources
Division of Waste Manaqement
According to (G.S, l30A-309,09D(b)) compieted forms urust be
CoLrnty Managel of each county fiom which waste was received,
yout Regional Envilonmental Senior. Specialist.
Facility Natne: Dean Brooks Famr
COMPOST
Facility Anrrual Reporl
For the period ofJuly 1,2014-June 30,2015
1,2015 and a copy of this report rnust be sent to the
or require assistance in cornpleting this report, contact
retulrred by August
lf you liave questions
Pennit:I9O5-COMPOST
Physical Address
Street l: I 193 Beal Rd Street
Stleet
City:
State:
Coldston
I I 95 Beal Rd
Street 2:
City: Coldston County: Chathant
State: Norlh Carolina Zip: 27252 North Calolina Zip: 27252
Mailing Address
Primaly Facilit1, Contact Person Billing Contact Pelson
Name
Phone
Enrail
Amy Brool<s
[phone] Fax: [phone]
arny@broolcscontf actor. conl
Name
Phone
Email
Judy Brool<s
(919) 837-s9l 4 Fax (919) 837-s097
Judy@brool<scontf actor,cot.n
I
2
Tipping Fee: $25,00
Did your facility stop
lf so, please report
per Ton
receiving waste duling this
the date this occulred:
(Attach a schedule of tippirrg fees if appropriate,)
past Fiscal Year? ! Ves lX No
3.PleaseattachlestrltsofmonthJytenlpefaturemonitolingfortheperiodofJuly l,2014thruJune30,2015.
4. For Type It, Itl, and IV facilities, attach lesults of tests (\\raste Analysis with nretals, 1'oreign uratter and pathogens) as required in Tabte 3 o1.Rule l5A NCAC i38 .1408 for the peliod of July 1,2014 thru June 30, 2015. Current Rules state that "Compost shall be anal),zed atintervals of every 20.000 tons of compost produced or every six months. whichever comes first."
5. What type and quantib/ of waste was cotrposted by your facility?
Vlaterials COMPOSTED Checl< X if Rcceived Tons RECEIVED Tons COMPOSTED
Unusable Tons
DISPOSED
Yard Waste 9.r6s 9, 16.5
Clean Wood I
Sau,dLrsl 295 29s
Wooden Pallets T
Food Waste 9,342 41 9,342 41
Anirnal Waste
SILrdgc and Brosolids l
Crcase l'rap Waste X 13.122 25 | 3.122. 25
Anirnal Mortalitics l
S heetrock I
Corrrr i rrqlerl(Drscrbe) Lggsllel ls X | 6,142 2.5 | 6,t 42 25
Jther
Descrbel leeo waste x 1,662.96 t.662 96
Jther
Desc be)Animal Bedding 2:6.0r5 6,01 5
fther
Describe) LlaY 21 885 72 88s l2
TOTAL 57.2t0 65 57.230 65
Compost 20 I 5 r 905-cotvtPos I Page J
6. What type and quantity of cornpost was produced and removed frorr
T. lndicatewastereceivedatthiscornpostfacilityduringthepeliodofJul), l.20l4.thr.oughJune30.20l5. Indicatetonnager.eceivedbyCOUNTY of waste origin. Please indicate COLJNTY and STATE if received fi.onr another state.
Grade A Compost
see altached spreadsheet
REMINDER: According to (c.S. l3OA-i09.09D(b)),
this lepor-t ntust be sent to the Regional Environrnental Senior.
Specialist folyour area and a copy ofthis fel)oft ntust be sent
to the CoLrnty Manager of eac_h loullty filx! wt11:I wasj_e. \vas
leceived.
Please send your contpleted report to:
John Patrone
PO Box 5123
High Point, NC 27262
phone: [phone] emai | : J ohn.patrone@ncdenr. gov
CERTIFICATION:Ice that the infonr.ration vided is an accufate represerrtation ofthe activity at this facility.
Date: JLrl 27,2015
Title: Secletary/ Assistant Facility Manager
Errail: any@brool(scontracto[.com
Signature:
Name: Amy Brooks
Phone Nurnber:
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TEL: [phone]
FAX: [phone]
www.compostlab.com

Account #: 4080815-1/2-7372
Group:Aug.14 E #26
Reporting Date:
Brooks Contractor
1195 Beal Rd.
Goldston, NC 27252
Attn: Amy Brooks
Date Received: 28 Aug. 14
Sample Identification: BR-1
Sample ID #: 4080815 - 1/2
Nutrients Dry wt. As Rcvd. units Stability Indicator:Biologically
Total Nitrogen:0.89 0.58 %CO2 Evolution Respirometery Available C
Ammonia (NH4-N):460 300 mg/kg mg CO2-C/g OM/day 1.0 1.0
Nitrate (NO3-N):120 82 mg/kg mg CO2-C/g TS/day 0.32 0.33
Org. Nitrogen (Org.-N):0.83 0.55 % Stability Rating very stable very stable
Phosphorus (as P2O5):0.58 0.38 %
Phosphorus (P):2500 1700 mg/kg
Potassium (as K2O):0.30 0.19 %Maturity Indicator: Cucumber Bioassay
Potassium (K):2500 1600 mg/kg Compost:Vermiculite(v:v) 1:1 1:3
Calcium (Ca):18 12 % Emergence (%) 100 100
Magnesium (Mg):0.30 0.20 % Seedling Vigor (%) 90 93
Sulfate (SO4-S):270 180 mg/kg Description of Plants healthy healthy
Boron (Total B):6.4 4.2 mg/kg
Moisture:0 34.2 %
Sodium (Na):0.15 0.099 %Pathogens Results Units Rating
Chloride (Cl):0.11 0.07 % Fecal Coliform 370 MPN/g pass
pH Value:NA 7.62 unit Salmonella < 3 MPN/4g pass
Bulk Density :36 54 lb/cu ft Date Tested: 28 Aug. 14
Carbonates (CaCO3):390 260 lb/ton
Conductivity (EC5):2.4 NA mmhos/cm
Organic Matter:31.2 20.5 %Inerts % by weight
Organic Carbon:18.0 12.0 % Plastic < 0.5
Ash:68.8 45.2 % Glass < 0.5
C/N Ratio 20 20 ratio Metal < 0.5
AgIndex 7 7 ratio Sharps ND
Metals Dry wt. EPA Limit units Size & Volume Distribution
Aluminum (Al): 3800 - mg/kg MM % by weight % by volume BD g/cc
Arsenic (As): 2.0 41 mg/kg > 50 0.0 0.0 0.00
Cadmium (Cd): < 1.0 39 mg/kg 25 to 50 0.0 0.0 0.00
Chromium (Cr): 12 1200 mg/kg 16 to 25 0.0 0.0 0.00
Cobalt (Co) 3.0 - mg/kg 9.5 to 16 3.7 5.4 0.45
Copper (Cu): 20 1500 mg/kg 6.3 to 9.5 4.9 6.3 0.52
Iron (Fe): 6700 - mg/kg 4.0 to 6.3 5.7 7.2 0.52
Lead (Pb): 8.9 300 mg/kg 2.0 to 4.0 13.2 19.8 0.44
Manganese (Mn): 250 - mg/kg < 2.0 72.4 61.3 0.78
Mercury (Hg): < 1.0 17 mg/kg Bulk Density Description:<.35 Light Materials,
Molybdenum (Mo): < 1.0 75 mg/kg .35-.60 medium weight materials, >.60 Heavy Materials
Nickel (Ni): 4.3 420 mg/kg Analyst: Assaf Sadeh
Selenium (Se): < 1.0 36 mg/kg
Zinc (Zn): 76 2800 mg/kg
*Sample was received and handled in accordance with TMECC procedures.
September 12, 2014
Account No.: Date Received 28 Aug. 14
4080815 - 1/2 - 7372 Sample i.d.
Group: Sample I.d. No. 1/2 4080815
INTERPRETATION:Page one of three
Is Your Compost Stable?
Respiration Rate Biodegradation Rate of Your Pile
1.0 mg CO2-C/
g OM/day
Biologically Available Carbon (BAC)Optimum Degradation Rate
1.0 mg CO2-C/
g OM/day
Is Your Compost Mature?
3.8 Ratio
Ammonia N ppm
460 mg/kg
dry wt.
Nitrate N ppm
120 mg/kg
dry wt.
pH value
7.62 units

Cucumber Emergence
100.0 percent
Is Your Compost Safe Regarding Health?
Fecal Coliform
< 1000 MPN/g dry wt.
Salmonella
Less than 3 /4g dry wt.
Metals US EPA 503
Pass dry wt.
Does Your Compost Provide Nutrients or Organic Matter?
Nutrients (N+P2O5+K2O)
1.8 Percent
dry wt.
AgIndex (Nutrients / Sodium and Chloride Salts)((N+P2O5+K2O) / (Na + Cl))
7 Ratio
Plant Available Nitrogen (PAN)Estimated release for first season
2 lbs/ton
wet wt.
C/N Ratio
20 Ratio
Soluble Available Nutrients & Salts (EC5 w/w dw)
2.4 mmhos/cm
dry wt.
Lime Content (CaCO3)
390 Lbs/ton
dry wt.
What are the physical properties of your compost?
Percent Ash
68.8 Percent ++++++++++++++++++++++++++++++++++++++++++++++++++++++
dry wt.
Sieve Size % > 6.3 MM (0.25")
8.7 Percent
dry wt.
Aug.14 E No. 26
< Nitrogen Release >|< N-Neutral >|< N-Demand>|< High Nitrogen Demand
++++++++++++
SloRelease>|< Average Nutrient Release Rate >|<High Available Nutrients
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++
< Low >|< Average >|< High Lime Content (as CaCO3)
< High Organic Matter >|< Average >|< High Ash Content
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
All Uses >|< Size May Restrict Uses for Potting mix and Golf Courses
Low Nitrogen Provider>|< Average Nitrogen Provider >|<High Nitrogen Provider
+++++++
<Safe (none detected) >|< High Salmonella Count(> 3 per 4 grams)
+++++++++
<All Metals Pass >|< One or more Metals Fail
+++++++++++++++++++++++++++++++++++++++
+++++++++++++
<Low >|< Average >|< High Nutrient Content
+++++++++++++++++++++++++++++++++++
Na & Cl >|< Nutrient and Sodium and Chloride Provider >|< Nutrient Provider
< Immature >|< Mature >|< Immature
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature
+++++++
< Safe >|< High Fecal Coliform
VeryMature>|< Mature >|< Immature
+++++++++++++++++++++++++++++++++++++++++++++++++++
VeryMature>|< Mature >|< Immature
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Stable >|<Moderately Unstable>|< Unstable >|< High For Mulch
AmmoniaN/NitrateN ratio
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
BR-1
+++
< Stable >|<Moderately Unstable>|< Unstable >|< High For Mulch
+++
Account No.: Date Received
4080815 - 1/2 - 7372 Sample i.d.
Group: Sample I.d. No. 1/2 4080815
INTERPRETATION:
Is Your Compost Stable?Page two of three
Respiration Rate
1.0 Low: Good for all uses mg CO2-C/g OM/day
The respiration rate is a measurement of the biodegradation rate of the organic matter in the sample (as received).
The respiration rate is determined by measuring the rate at which CO2 is released under optimized moisture and
temperature conditions.
Biologically Available Carbon
1.0 Low: Good for all uses mg CO2-C/g OM/day
Biologically Available Carbon (BAC) is a measurement of the rate at which CO2 is released under optimized moisture, temperature,
porosity, nutrients, pH and microbial conditions. If both the RR and the BAC test values are close to the same value, the pile is
optimized for composting. If both values are high the compost pile just needs more time. If both values are low the compost has
stabilized and should be moved to curing. BAC test values that are higher than RR indicate that the compost pile has stalled. This
could be due to anaerobic conditions, lack of available nitrogen due to excessive air converting ammonia to the unavailable nitrate
form, lack of nitrogen or other nutrients due to poor choice of feedstock, pH value out of range, or microbes rendered non-active.
Is Your Compost Mature?
AmmoniaN:NitrateN ratio
3.8 immature
Composting to stabilize carbon can occur at such a rapid rate that sometimes phytotoxins remain in
the compost and must be neutralized before using in high concentrations or in high-end uses. This
Ammonia N ppm step is called curing. Typically ammonia is in excess with the break-down of organic materials resulting
460 mature in an increase in pH. This combination results in a loss of volatile ammonia (it smells). Once this toxic
Nitrate N ppm ammonia has been reduced and the pH drops, the microbes convert the ammonia to nitrates. A low
120 mature ammonia + high nitrate score is indicative of a mature compost, however there are many exceptions.
pH value For example, a compost with a low pH (<7) will retain ammonia, while a compost with high lime content
7.62 mature can lose ammonia before the organic fraction becomes stable. Composts must first be stable before
curing indicators apply.
Cucumber Bioassay
100.0 Percent Cucumbers are chosen for this test because they are salt tolerant and very sensitive to ammonia
and organic acid toxicity. Therefore, we can germinate seeds in high concentrations of compost to
measure phytotoxic effects without soluble salts being the limiting factor. Values above 80% for both percent emergence and
vigor are indicative of a well-cured compost. Exceptions include very high salts that affect the cucumbers, excessive concentrations
of nitrates and other nutrients that will be in range when formulated to make a growing media. In addition to testing a 1:1 compost:
vermiculite blend, we also test a diluted 1:3 blend to indicate a more sensitive toxicity level.
Is Your Compost Safe Regarding Health?
Fecal Coliform
< 1000 / g dry wt. Fecal coliforms can survive in both aerobic and anaerobic conditions and is common in all initial
compost piles. Most human pathogens occur from fecal matter and all fecal matter is loaded in fecal coliforms. Therefore fecal
coliforms are used as an indicator to determine if the chosen method for pathogen reduction (heat for compost) has met the
requirements of sufficient temperature, time and mixing. If the fecal coliforms are reduced to below 1000 per gram dry wt. it is
assumed all others pathogens are eliminated. Potential problems are that fecal coliform can regrow during the curing phase or
during shipping. This is because the conditions are now more favorable for growth than during the composting process.
Salmonella Bacteria
Less than 3 3 / 4g dry wt. Salmonella is not only another indicator organism but also a toxic microbe. It has been used in the
case of biosolids industry to determine adequate pathogen reduction.
Metals
Pass The ten heavy metals listed in the EPA 503 regulations are chosen to determine if compost
can be applied to ag land and handled without toxic effects. Most high concentrations of heavy metals are derived from
woodwaste feedstock such as chrome-arsenic treated or lead painted demolition wood. Biosolids are rarely a problem.
Does Your Compost Provide Nutrients or Organic Matter?
Nutrients (N+P2O5+K2O)
1.8 low nutrient content
This value is the sum of the primary nutrients Nitrogen, Phosphorus and Potassium. Reported units are consistent with those
found on fertilizer formulations. A sum greater than 5 is indicative of a compost with high nutrient content, and best used to supply
nutrients to a receiving soil. A sum below 2 indicates low nutrient content, and is best-used to improve soil structure via the
addition of organic matter. Most compost falls between 2 and 5.
Aug.14 E No. 26
28 Aug. 14
BR-1
Account No.: Date Received
4080815 - 1/2 - 7372 Sample i.d.
Group: Sample I.d. No. 1/2 4080815
INTERPRETATION:Page three of three
AgIndex (Nutrients/Na+Cl)
7 Average nutrient ratio Composts with low AgIndex values have high concentrations of sodium and/or chloride
compared to nutrients. Repeated use of a compost with a low AgIndex (< 2) may result in sodium and/or chloride
acting as the limiting factor compared to nutrients, governing application rates. These composts may be used on well-draining
soils and/or with salt-tolerant plants. Additional nutrients form another source may be needed if the application rate is limited by
sodium or chloride. If the AgIndex is above 10, nutrients optimal for plant growth will be available without concern of sodium and/or
chloride toxicity. Composts with an AgIndex of above 10 are good for increasing nutrient levels for all soils. Most composts score
between 2 and 10. Concentrations of nutrients, sodium, and chloride in the receiving soil should be considered when determining
compost application rates. The AgIndex is a product of feedstock quality. Feedstock from dairy manure, marine waste, industrial
wastes, and halophytic plants are likely to produce a finished compost with a low AgIndex.
Plant Available Nitrogen (lbs/ton)
2 Low N Provider Plant Available Nitrogen (PAN) is calculated by estimating the release rate of Nitrogen from
the organic fraction of the compost. This estimate is based on information gathered from the BAC test and measured ammonia and
nitrate values. Despite the PAN value of the compost, additional sources of Nitrogen may be needed during he growing season to off-
set the Nitrogen demand of the microbes present in the compost. With ample nutrients these microbes can further breakdown organic
matter in the compost and release bound Nitrogen. Nitrogen demand based on a high C/N ratio is not considered in the PAN calculation
because additional Nitrogen should always be supplemented to the receiving soil when composts with a high C/N ratio are applied.
C/N Ratio
20 Indicates immaturity As a guiding principal, a C/N ratio below 14 indicates maturity and above 14 indicates
immaturity, however, there are many exceptions. Large woodchips (>6.3mm), bark, and redwood are slow to breakdown and
therefore can result in a relatively stable product while the C/N ratio value is high. Additionally, some composts with chicken manure
and/or green grass feedstocks can start with a C/N ratio below 15 and are very unstable. A C/N ratio below 10 supplies Nitrogen,
while a ratio above 20 can deplete Nitrogen from the soil. The rate at which Nitrogen will be released or used by the microbes is
indicated by the respiration rate (BAC). If the respiration rate is too high the transfer of Nitrogen will not be controlable.
Soluble Nutrients & Salts (EC5 w/w dw - mmhos/cm)
2.4 Average salts This value refers to all soluble ions including nutrients, sodium, chloride and some
soluble organic compounds. The concentration of salts will change due to the release of salts from the organic matter as it degrades,
volatilization of ammonia, decomposition of soluble organics, and conversion of molecular structure. High salts + high AgIndex is
indicative of a compost high in readily available nutrients. The application rate of these composts should be limited by the optimum
nutrient value based on soil analysis of the receiving soil. High Salts + low AgIndex is indicative of a compost low in nutrients with
high concentrations of sodium and/or chloride. Limit the application rate according to the toxicity level of thesodium and/or chloride.
Low salts indicates that the compost can be applied without risking salt toxicity, is likely a good source of organic matter, and that
nutrients will release slowly over time.
Lime Content (lbs. per ton)
390 High lime content Compost high in lime or carbonates are often those produced from chicken manure (layers)
ash materials, and lime products. These are excellent products to use on a receiving soil where lime has been recommended by
soil analysis to raise the pH. Composts with a high lime content should be closely considered for pH requirements when formulating
potting mixes.
Physical Properties
Percent Ash
68.8 High ash content Ash is the non-organic fraction of a compost. Most composts contain approximately 50%
ash (dry weight basis). Compost can be high in ash content for many reasons including: excess minerilzation(old compost),
contamination with soil base material during turning, poor quality feedstock, and soil or mineral products added. Finding the source
and reducing high ash content is often the fastest means to increasing nutrient quality of a compost.
Particle Size % > 6.3 MM (0.25")
8.7 May restrict use Large particles may restrict use for potting soils, golf course topdressings, seed-starter
mixes, and where a fine size distribution is required. Composts with large particles can still be used as excellent additions to field
soils, shrub mixes and mulches.
Particle Size Distribution
Each size fraction is measured by weight, volume and bulk density. These results are particularly relevent with decisions to screen
or not, and if screening, which size screen to use. The bulk density indicates if the fraction screened is made of light weight organic
material or heavy mineral material. Removing large mineral material can greatly improve compost quality by increasing nutrient and
organic concentrations.
Appendix:
Estimated available nutrients for use when calculating application rates
Plant Available Nitrogen (PAN) calculations: lbs/ton (As Rcvd.)
PAN = (X * (organic N)) + ((NH4-N) + (NO3-N))
X value = If BAC < 2 then X = 0.1 Plant Available Nitrogen (PAN) 1.8
If BAC =2.1 to 5 then X = 0.2 Ammonia (NH4-N) 0.60
If BAC =5.1 to 10 then X = 0.3 Nitrate (NO3-N) 0.16
If BAC > 10 then X = 0.4 Available Phosphorus (P2O5*0.64) 4.9
Note: If C/N ratio > 15 additional N should be applied. Available Potassium (K2O) 3.9
28 Aug. 14
BR-1
Aug.14 E No. 26
TEL: [phone]
FAX: [phone]
www.compostlab.com
Account #: 4080815-1/2-7372
Group: Aug.14 E #26
Reporting Date:
Brooks Contractor
1195 Beal Rd.
Attn: Amy Brooks
Date Received: 28 Aug. 14
Sample Identification: BR-1
Sample ID #: 4080815 - 1/2
Metals Results Units MDL % Recovery Date Tested
Arsenic (As): 2.0 mg/kg dw 1.0 107.2 05 Sep. 14
Cadmium (Cd): Less than 1.0 mg/kg dw 1.0 96.2 05 Sep. 14
Chromium (Cr): 12 mg/kg dw 1.0 101.9 05 Sep. 14
Copper (Cu): 20 mg/kg dw 1.0 89.1 05 Sep. 14
Lead (Pb): 8.9 mg/kg dw 1.0 101.7 05 Sep. 14
Mercury (Hg): Less than 1.0 mg/kg dw 1.0 120.9 05 Sep. 14
Molybdenum (Mo): Less than 1.0 mg/kg dw 1.0 101.2 05 Sep. 14
Nickel (Ni): 4.3 mg/kg dw 1.0 95.9 05 Sep. 14
Selenium (Se): Less than 1.0 mg/kg dw 1.0 110.7 05 Sep. 14
Zinc (Zn): 76 mg/kg dw 1.0 94.6 05 Sep. 14
Cobalt (Co) 3.0 mg/kg dw 0.50 99.7 05 Sep. 14
Total Solids (TMECC 03.09) 66 % 0.05 NA 29 Aug. 14
Bacteria Results Units MDL Date Tested
Fecal Coliform 370 MPN/g dw 28 Aug. 14
Salmonella Less than 3 MPN/4g dw 3 28 Aug. 14
Pollutant Loading Rate:
Multiply mg/kg dry weight values times 0.0597 to give you kilograms pollutant per 100
metric ton compost as-received based on a moisture content of 34.2 percent.
Method (metals): EPA 3050B / EPA 6010
Method (metals): TMECC 04.12-B / 04.14-A
Method (Mercury Hg) TMECC 04.06 / EPA 7471
Method (Fecal Coliform): Standard Methods 9221E
Method (Salmonella): TMECC 07.02-A
Analyst: Assaf Sadeh
Goldston, NC 27252
September 12, 2014
Metals & Bacteria
TEL: [phone]
FAX: [phone]
www.compostlab.com

Account #: 4080815-2/2-7372
Group:Aug.14 E #27
Reporting Date:
Brooks Contractor
1195 Beal Rd.
Goldston, NC 27252
Attn: Amy Brooks
Date Received: 28 Aug. 14
Sample Identification: BR-1F
Sample ID #: 4080815 - 2/2
Nutrients Dry wt. As Rcvd. units Stability Indicator:Biologically
Total Nitrogen:1.1 0.67 %CO2 Evolution Respirometery Available C
Ammonia (NH4-N):34 21 mg/kg mg CO2-C/g OM/day 2.2 2.2
Nitrate (NO3-N):200 130 mg/kg mg CO2-C/g TS/day 0.68 0.69
Org. Nitrogen (Org.-N):1.1 0.68 % Stability Rating stable stable
Phosphorus (as P2O5):0.54 0.33 %
Phosphorus (P):2400 1500 mg/kg
Potassium (as K2O):0.26 0.16 %Maturity Indicator: Cucumber Bioassay
Potassium (K):2100 1300 mg/kg Compost:Vermiculite(v:v) 1:1 1:3
Calcium (Ca):15 9.0 % Emergence (%) 100 100
Magnesium (Mg):0.28 0.17 % Seedling Vigor (%) 100 100
Sulfate (SO4-S):110 66 mg/kg Description of Plants healthy healthy
Boron (Total B):7.0 4.3 mg/kg
Moisture:0 38.1 %
Sodium (Na):0.11 0.065 %Pathogens Results Units Rating
Chloride (Cl):0.073 0.045 % Fecal Coliform 400 MPN/g pass
pH Value:NA 7.46 unit Salmonella < 3 MPN/4g pass
Bulk Density :31 51 lb/cu ft Date Tested: 28 Aug. 14
Carbonates (CaCO3):340 210 lb/ton
Conductivity (EC5):1.3 NA mmhos/cm
Organic Matter:31.0 19.2 %Inerts % by weight
Organic Carbon:17.0 10.0 % Plastic < 0.5
Ash:69.0 42.7 % Glass < 0.5
C/N Ratio 16 16 ratio Metal < 0.5
AgIndex > 10 > 10 ratio Sharps ND
Metals Dry wt. EPA Limit units Size & Volume Distribution
Aluminum (Al): 4600 - mg/kg MM % by weight % by volume BD g/cc
Arsenic (As): 2.6 41 mg/kg > 50 0.0 0.0 0.00
Cadmium (Cd): < 1.0 39 mg/kg 25 to 50 0.0 0.0 0.00
Chromium (Cr): 19 1200 mg/kg 16 to 25 0.0 0.0 0.00
Cobalt (Co) 2.8 - mg/kg 9.5 to 16 0.0 0.0 0.00
Copper (Cu): 23 1500 mg/kg 6.3 to 9.5 0.0 0.0 0.00
Iron (Fe): 8100 - mg/kg 4.0 to 6.3 0.9 0.9 0.73
Lead (Pb): 13 300 mg/kg 2.0 to 4.0 13.5 19.0 0.52
Manganese (Mn): 320 - mg/kg < 2.0 85.6 80.2 0.77
Mercury (Hg): < 1.0 17 mg/kg Bulk Density Description:<.35 Light Materials,
Molybdenum (Mo): < 1.0 75 mg/kg .35-.60 medium weight materials, >.60 Heavy Materials
Nickel (Ni): 5.5 420 mg/kg Analyst: Assaf Sadeh
Selenium (Se): < 1.0 36 mg/kg
Zinc (Zn): 110 2800 mg/kg
*Sample was received and handled in accordance with TMECC procedures.
September 12, 2014
Account No.: Date Received 28 Aug. 14
4080815 - 2/2 - 7372 Sample i.d.
Group: Sample I.d. No. 2/2 4080815
INTERPRETATION:Page one of three
Is Your Compost Stable?
Respiration Rate Biodegradation Rate of Your Pile
2.2 mg CO2-C/
g OM/day
Biologically Available Carbon (BAC)Optimum Degradation Rate
2.2 mg CO2-C/
g OM/day
Is Your Compost Mature?
0.17 Ratio
Ammonia N ppm
34 mg/kg
dry wt.
Nitrate N ppm
200 mg/kg
dry wt.
pH value
7.46 units

Cucumber Emergence
100.0 percent
Is Your Compost Safe Regarding Health?
Fecal Coliform
< 1000 MPN/g dry wt.
Salmonella
Less than 3 /4g dry wt.
Metals US EPA 503
Pass dry wt.
Does Your Compost Provide Nutrients or Organic Matter?
Nutrients (N+P2O5+K2O)
1.9 Percent
dry wt.
AgIndex (Nutrients / Sodium and Chloride Salts)((N+P2O5+K2O) / (Na + Cl))
10 Ratio
Plant Available Nitrogen (PAN)Estimated release for first season
3 lbs/ton
wet wt.
C/N Ratio
16 Ratio
Soluble Available Nutrients & Salts (EC5 w/w dw)
1.3 mmhos/cm
dry wt.
Lime Content (CaCO3)
340 Lbs/ton
dry wt.
What are the physical properties of your compost?
Percent Ash
69.0 Percent ++++++++++++++++++++++++++++++++++++++++++++++++++++++
dry wt.
Sieve Size % > 6.3 MM (0.25")
0.0 Percent
dry wt.
Aug.14 E No. 27
< Nitrogen Release >|< N-Neutral >|< N-Demand>|< High Nitrogen Demand
++++++
SloRelease>|< Average Nutrient Release Rate >|<High Available Nutrients
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++
< Low >|< Average >|< High Lime Content (as CaCO3)
< High Organic Matter >|< Average >|< High Ash Content
+
All Uses >|< Size May Restrict Uses for Potting mix and Golf Courses
Low Nitrogen Provider>|< Average Nitrogen Provider >|<High Nitrogen Provider
+++++++
<Safe (none detected) >|< High Salmonella Count(> 3 per 4 grams)
+++++++++
<All Metals Pass >|< One or more Metals Fail
+++++++++++++++++++++++++++++++
++++++++++++++
<Low >|< Average >|< High Nutrient Content
++++++++++++++++++++++++++++++++++++++++++++++++++++++
Na & Cl >|< Nutrient and Sodium and Chloride Provider >|< Nutrient Provider
< Immature >|< Mature >|< Immature
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature
+++++++
< Safe >|< High Fecal Coliform
VeryMature>|< Mature >|< Immature
+++
VeryMature>|< Mature >|< Immature
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Stable >|<Moderately Unstable>|< Unstable >|< High For Mulch
AmmoniaN/NitrateN ratio
+++
BR-1F
++++++++
< Stable >|<Moderately Unstable>|< Unstable >|< High For Mulch
++++++++
Account No.: Date Received
4080815 - 2/2 - 7372 Sample i.d.
Group: Sample I.d. No. 2/2 4080815
INTERPRETATION:
Is Your Compost Stable?Page two of three
Respiration Rate
2.2 Low: Good for all uses mg CO2-C/g OM/day
The respiration rate is a measurement of the biodegradation rate of the organic matter in the sample (as received).
The respiration rate is determined by measuring the rate at which CO2 is released under optimized moisture and
temperature conditions.
Biologically Available Carbon
2.2 Low: Good for all uses mg CO2-C/g OM/day
Biologically Available Carbon (BAC) is a measurement of the rate at which CO2 is released under optimized moisture, temperature,
porosity, nutrients, pH and microbial conditions. If both the RR and the BAC test values are close to the same value, the pile is
optimized for composting. If both values are high the compost pile just needs more time. If both values are low the compost has
stabilized and should be moved to curing. BAC test values that are higher than RR indicate that the compost pile has stalled. This
could be due to anaerobic conditions, lack of available nitrogen due to excessive air converting ammonia to the unavailable nitrate
form, lack of nitrogen or other nutrients due to poor choice of feedstock, pH value out of range, or microbes rendered non-active.
Is Your Compost Mature?
AmmoniaN:NitrateN ratio
0.17 very mature
Composting to stabilize carbon can occur at such a rapid rate that sometimes phytotoxins remain in
the compost and must be neutralized before using in high concentrations or in high-end uses. This
Ammonia N ppm step is called curing. Typically ammonia is in excess with the break-down of organic materials resulting
34 very mature in an increase in pH. This combination results in a loss of volatile ammonia (it smells). Once this toxic
Nitrate N ppm ammonia has been reduced and the pH drops, the microbes convert the ammonia to nitrates. A low
200 mature ammonia + high nitrate score is indicative of a mature compost, however there are many exceptions.
pH value For example, a compost with a low pH (<7) will retain ammonia, while a compost with high lime content
7.46 mature can lose ammonia before the organic fraction becomes stable. Composts must first be stable before
curing indicators apply.
Cucumber Bioassay
100.0 Percent Cucumbers are chosen for this test because they are salt tolerant and very sensitive to ammonia
and organic acid toxicity. Therefore, we can germinate seeds in high concentrations of compost to
measure phytotoxic effects without soluble salts being the limiting factor. Values above 80% for both percent emergence and
vigor are indicative of a well-cured compost. Exceptions include very high salts that affect the cucumbers, excessive concentrations
of nitrates and other nutrients that will be in range when formulated to make a growing media. In addition to testing a 1:1 compost:
vermiculite blend, we also test a diluted 1:3 blend to indicate a more sensitive toxicity level.
Is Your Compost Safe Regarding Health?
Fecal Coliform
< 1000 / g dry wt. Fecal coliforms can survive in both aerobic and anaerobic conditions and is common in all initial
compost piles. Most human pathogens occur from fecal matter and all fecal matter is loaded in fecal coliforms. Therefore fecal
coliforms are used as an indicator to determine if the chosen method for pathogen reduction (heat for compost) has met the
requirements of sufficient temperature, time and mixing. If the fecal coliforms are reduced to below 1000 per gram dry wt. it is
assumed all others pathogens are eliminated. Potential problems are that fecal coliform can regrow during the curing phase or
during shipping. This is because the conditions are now more favorable for growth than during the composting process.
Salmonella Bacteria
Less than 3 3 / 4g dry wt. Salmonella is not only another indicator organism but also a toxic microbe. It has been used in the
case of biosolids industry to determine adequate pathogen reduction.
Metals
Pass The ten heavy metals listed in the EPA 503 regulations are chosen to determine if compost
can be applied to ag land and handled without toxic effects. Most high concentrations of heavy metals are derived from
woodwaste feedstock such as chrome-arsenic treated or lead painted demolition wood. Biosolids are rarely a problem.
Does Your Compost Provide Nutrients or Organic Matter?
Nutrients (N+P2O5+K2O)
1.9 low nutrient content
This value is the sum of the primary nutrients Nitrogen, Phosphorus and Potassium. Reported units are consistent with those
found on fertilizer formulations. A sum greater than 5 is indicative of a compost with high nutrient content, and best used to supply
nutrients to a receiving soil. A sum below 2 indicates low nutrient content, and is best-used to improve soil structure via the
addition of organic matter. Most compost falls between 2 and 5.
Aug.14 E No. 27
28 Aug. 14
BR-1F
Account No.: Date Received
4080815 - 2/2 - 7372 Sample i.d.
Group: Sample I.d. No. 2/2 4080815
INTERPRETATION:Page three of three
AgIndex (Nutrients/Na+Cl)
10 High nutrient ratio Composts with low AgIndex values have high concentrations of sodium and/or chloride
compared to nutrients. Repeated use of a compost with a low AgIndex (< 2) may result in sodium and/or chloride
acting as the limiting factor compared to nutrients, governing application rates. These composts may be used on well-draining
soils and/or with salt-tolerant plants. Additional nutrients form another source may be needed if the application rate is limited by
sodium or chloride. If the AgIndex is above 10, nutrients optimal for plant growth will be available without concern of sodium and/or
chloride toxicity. Composts with an AgIndex of above 10 are good for increasing nutrient levels for all soils. Most composts score
between 2 and 10. Concentrations of nutrients, sodium, and chloride in the receiving soil should be considered when determining
compost application rates. The AgIndex is a product of feedstock quality. Feedstock from dairy manure, marine waste, industrial
wastes, and halophytic plants are likely to produce a finished compost with a low AgIndex.
Plant Available Nitrogen (lbs/ton)
3 Low N Provider Plant Available Nitrogen (PAN) is calculated by estimating the release rate of Nitrogen from
the organic fraction of the compost. This estimate is based on information gathered from the BAC test and measured ammonia and
nitrate values. Despite the PAN value of the compost, additional sources of Nitrogen may be needed during he growing season to off-
set the Nitrogen demand of the microbes present in the compost. With ample nutrients these microbes can further breakdown organic
matter in the compost and release bound Nitrogen. Nitrogen demand based on a high C/N ratio is not considered in the PAN calculation
because additional Nitrogen should always be supplemented to the receiving soil when composts with a high C/N ratio are applied.
C/N Ratio
16 Indicates immaturity As a guiding principal, a C/N ratio below 14 indicates maturity and above 14 indicates
immaturity, however, there are many exceptions. Large woodchips (>6.3mm), bark, and redwood are slow to breakdown and
therefore can result in a relatively stable product while the C/N ratio value is high. Additionally, some composts with chicken manure
and/or green grass feedstocks can start with a C/N ratio below 15 and are very unstable. A C/N ratio below 10 supplies Nitrogen,
while a ratio above 20 can deplete Nitrogen from the soil. The rate at which Nitrogen will be released or used by the microbes is
indicated by the respiration rate (BAC). If the respiration rate is too high the transfer of Nitrogen will not be controlable.
Soluble Nutrients & Salts (EC5 w/w dw - mmhos/cm)
1.3 Average salts This value refers to all soluble ions including nutrients, sodium, chloride and some
soluble organic compounds. The concentration of salts will change due to the release of salts from the organic matter as it degrades,
volatilization of ammonia, decomposition of soluble organics, and conversion of molecular structure. High salts + high AgIndex is
indicative of a compost high in readily available nutrients. The application rate of these composts should be limited by the optimum
nutrient value based on soil analysis of the receiving soil. High Salts + low AgIndex is indicative of a compost low in nutrients with
high concentrations of sodium and/or chloride. Limit the application rate according to the toxicity level of thesodium and/or chloride.
Low salts indicates that the compost can be applied without risking salt toxicity, is likely a good source of organic matter, and that
nutrients will release slowly over time.
Lime Content (lbs. per ton)
340 High lime content Compost high in lime or carbonates are often those produced from chicken manure (layers)
ash materials, and lime products. These are excellent products to use on a receiving soil where lime has been recommended by
soil analysis to raise the pH. Composts with a high lime content should be closely considered for pH requirements when formulating
potting mixes.
Physical Properties
Percent Ash
69.0 High ash content Ash is the non-organic fraction of a compost. Most composts contain approximately 50%
ash (dry weight basis). Compost can be high in ash content for many reasons including: excess minerilzation(old compost),
contamination with soil base material during turning, poor quality feedstock, and soil or mineral products added. Finding the source
and reducing high ash content is often the fastest means to increasing nutrient quality of a compost.
Particle Size % > 6.3 MM (0.25")
0.0 Suitable for all uses Large particles may restrict use for potting soils, golf course topdressings, seed-starter
mixes, and where a fine size distribution is required. Composts with large particles can still be used as excellent additions to field
soils, shrub mixes and mulches.
Particle Size Distribution
Each size fraction is measured by weight, volume and bulk density. These results are particularly relevent with decisions to screen
or not, and if screening, which size screen to use. The bulk density indicates if the fraction screened is made of light weight organic
material or heavy mineral material. Removing large mineral material can greatly improve compost quality by increasing nutrient and
organic concentrations.
Appendix:
Estimated available nutrients for use when calculating application rates
Plant Available Nitrogen (PAN) calculations: lbs/ton (As Rcvd.)
PAN = (X * (organic N)) + ((NH4-N) + (NO3-N))
X value = If BAC < 2 then X = 0.1 Plant Available Nitrogen (PAN) 2.9
If BAC =2.1 to 5 then X = 0.2 Ammonia (NH4-N) 0.04
If BAC =5.1 to 10 then X = 0.3 Nitrate (NO3-N) 0.26
If BAC > 10 then X = 0.4 Available Phosphorus (P2O5*0.64) 4.4
Note: If C/N ratio > 15 additional N should be applied. Available Potassium (K2O) 3.1
28 Aug. 14
BR-1F
Aug.14 E No. 27
TEL: [phone]
FAX: [phone]
www.compostlab.com
Account #: 4080815-2/2-7372
Group: Aug.14 E #27
Reporting Date:
Brooks Contractor
1195 Beal Rd.
Attn: Amy Brooks
Date Received: 28 Aug. 14
Sample Identification: BR-1F
Sample ID #: 4080815 - 2/2
Metals Results Units MDL % Recovery Date Tested
Arsenic (As): 2.6 mg/kg dw 1.0 107.2 05 Sep. 14
Cadmium (Cd): Less than 1.0 mg/kg dw 1.0 96.2 05 Sep. 14
Chromium (Cr): 19 mg/kg dw 1.0 101.9 05 Sep. 14
Copper (Cu): 23 mg/kg dw 1.0 89.1 05 Sep. 14
Lead (Pb): 13 mg/kg dw 1.0 101.7 05 Sep. 14
Mercury (Hg): Less than 1.0 mg/kg dw 1.0 120.9 05 Sep. 14
Molybdenum (Mo): Less than 1.0 mg/kg dw 1.0 101.2 05 Sep. 14
Nickel (Ni): 5.5 mg/kg dw 1.0 95.9 05 Sep. 14
Selenium (Se): Less than 1.0 mg/kg dw 1.0 110.7 05 Sep. 14
Zinc (Zn): 110 mg/kg dw 1.0 94.6 05 Sep. 14
Cobalt (Co) 2.8 mg/kg dw 0.50 99.7 05 Sep. 14
Total Solids (TMECC 03.09) 62 % 0.05 NA 29 Aug. 14
Bacteria Results Units MDL Date Tested
Fecal Coliform 400 MPN/g dw 28 Aug. 14
Salmonella Less than 3 MPN/4g dw 3 28 Aug. 14
Pollutant Loading Rate:
Multiply mg/kg dry weight values times 0.0561 to give you kilograms pollutant per 100
metric ton compost as-received based on a moisture content of 38.1 percent.
Method (metals): EPA 3050B / EPA 6010
Method (metals): TMECC 04.12-B / 04.14-A
Method (Mercury Hg) TMECC 04.06 / EPA 7471
Method (Fecal Coliform): Standard Methods 9221E
Method (Salmonella): TMECC 07.02-A
Analyst: Assaf Sadeh
Goldston, NC 27252
September 12, 2014
Metals & Bacteria
TEL: [phone]
FAX: [phone]
www.compostlab.com

Account #: 5050578-1/2-7372
Group: May.15 D #28
Reporting Date:
Brooks Contractor
1195 Beal Rd.
Goldston, NC 27252
Attn: Amy Brooks
Date Received: 20 May. 15
Sample Identification: BR-1B
Sample ID #: 5050578 - 1/2
Nutrients Dry wt. As Rcvd. units Stability Indicator:Biologically
Total Nitrogen:1.2 0.80 %CO2 Evolution Respirometery Available C
Ammonia (NH4-N):57 39 mg/kg mg CO2-C/g OM/day 1.3 1.5
Nitrate (NO3-N):560 390 mg/kg mg CO2-C/g TS/day 0.35 0.39
Org. Nitrogen (Org.-N):1.1 0.75 % Stability Rating very stable very stable
Phosphorus (as P2O5):0.59 0.41 %
Phosphorus (P):2600 1800 mg/kg
Potassium (as K2O):0.34 0.23 %Maturity Indicator: Cucumber Bioassay
Potassium (K):2800 1900 mg/kg Compost:Vermiculite(v:v) 1:1 1:3
Calcium (Ca):18 12 % Emergence (%) 100 100
Magnesium (Mg):0.33 0.23 % Seedling Vigor (%) 100 100
Sulfate (SO4-S):240 160 mg/kg Description of Plants healthy healthy
Boron (Total B):8.1 5.5 mg/kg
Moisture:0 31.5 %
Sodium (Na):0.14 0.096 %Pathogens Results Units Rating
Chloride (Cl):0.11 0.075 % Fecal Coliform < 2.0 MPN/g pass
pH Value:NA 7.29 unit Salmonella < 3 MPN/4g pass
Bulk Density :33 48 lb/cu ft Date Tested: 20 May. 15
Carbonates (CaCO3):820 560 lb/ton
Conductivity (EC5):2.7 NA mmhos/cm
Organic Matter:26.5 18.1 %Inerts % by weight
Organic Carbon:15.0 11.0 % Plastic < 0.5
Ash:73.5 50.3 % Glass < 0.5
C/N Ratio 13 13 ratio Metal < 0.5
AgIndex 9 9 ratio Sharps ND
Metals Dry wt. EPA Limit units Size & Volume Distribution
Aluminum (Al): 4700 - mg/kg MM % by weight % by volume BD g/cc
Arsenic (As): 2.5 41 mg/kg > 50 0.0 0.0 0.00
Cadmium (Cd): < 1.0 39 mg/kg 25 to 50 0.0 0.0 0.00
Chromium (Cr): 16 1200 mg/kg 16 to 25 0.0 0.0 0.00
Cobalt (Co) 2.6 - mg/kg 9.5 to 16 0.0 0.0 0.00
Copper (Cu): 27 1500 mg/kg 6.3 to 9.5 0.0 0.0 0.00
Iron (Fe): 8600 - mg/kg 4.0 to 6.3 1.2 1.7 0.55
Lead (Pb): 13 300 mg/kg 2.0 to 4.0 8.5 12.8 0.52
Manganese (Mn): 280 - mg/kg < 2.0 90.3 85.5 0.83
Mercury (Hg): < 1.0 17 mg/kg Bulk Density Description:<.35 Light Materials,
Molybdenum (Mo): < 1.0 75 mg/kg .35-.60 medium weight materials, >.60 Heavy Materials
Nickel (Ni): 4.5 420 mg/kg Analyst: Assaf Sadeh
Selenium (Se): < 1.0 36 mg/kg
Zinc (Zn): 90 2800 mg/kg
*Sample was received and handled in accordance with TMECC procedures.
June 4, 2015
Account No.: Date Received 20 May. 15
5050578 - 1/2 - 7372 Sample i.d.
Group: Sample I.d. No. 1/2 5050578
INTERPRETATION:Page one of three
Is Your Compost Stable?
Respiration Rate Biodegradation Rate of Your Pile
1.3 mg CO2-C/
g OM/day
Biologically Available Carbon (BAC)Optimum Degradation Rate
1.5 mg CO2-C/
g OM/day
Is Your Compost Mature?
0.10 Ratio
Ammonia N ppm
57 mg/kg
dry wt.
Nitrate N ppm
560 mg/kg
dry wt.
pH value
7.29 units

Cucumber Emergence
100.0 percent
Is Your Compost Safe Regarding Health?
Fecal Coliform
< 1000 MPN/g dry wt.
Salmonella
Less than 3 /4g dry wt.
Metals US EPA 503
Pass dry wt.
Does Your Compost Provide Nutrients or Organic Matter?
Nutrients (N+P2O5+K2O)
2.1 Percent
dry wt.
AgIndex (Nutrients / Sodium and Chloride Salts)((N+P2O5+K2O) / (Na + Cl))
9 Ratio
Plant Available Nitrogen (PAN)Estimated release for first season
2 lbs/ton
wet wt.
C/N Ratio
13 Ratio
Soluble Available Nutrients & Salts (EC5 w/w dw)
2.7 mmhos/cm
dry wt.
Lime Content (CaCO3)
820 Lbs/ton
dry wt.
What are the physical properties of your compost?
Percent Ash
73.5 Percent ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
dry wt.
Sieve Size % > 6.3 MM (0.25")
0.0 Percent
dry wt.
< Stable >|<Moderately Unstable>|< Unstable >|< High For Mulch
AmmoniaN/NitrateN ratio
++
BR-1B
+++++
< Stable >|<Moderately Unstable>|< Unstable >|< High For Mulch
+++++
VeryMature>|< Mature >|< Immature
++++++
VeryMature>|< Mature >|< Immature
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature >|< Immature
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature
+++++++
< Safe >|< High Fecal Coliform
+++++++
<Safe (none detected) >|< High Salmonella Count(> 3 per 4 grams)
+++++++++
<All Metals Pass >|< One or more Metals Fail
+++++++++++++++++++++++++
++++++++++++++++
<Low >|< Average >|< High Nutrient Content
++++++++++++++++++++++++++++++++++++++++++++
Na & Cl >|< Nutrient and Sodium and Chloride Provider >|< Nutrient Provider
< Low >|< Average >|< High Lime Content (as CaCO3)
< High Organic Matter >|< Average >|< High Ash Content
+
All Uses >|< Size May Restrict Uses for Potting mix and Golf Courses
Low Nitrogen Provider>|< Average Nitrogen Provider >|<High Nitrogen Provider
May.15 D No. 28
< Nitrogen Release >|< N-Neutral >|< N-Demand>|< High Nitrogen Demand
++++++++++++++
SloRelease>|< Average Nutrient Release Rate >|<High Available Nutrients
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++
Account No.: Date Received
5050578 - 1/2 - 7372 Sample i.d.
Group: Sample I.d. No. 1/2 5050578
INTERPRETATION:
Is Your Compost Stable?Page two of three
Respiration Rate
1.3 Low: Good for all uses mg CO2-C/g OM/day
The respiration rate is a measurement of the biodegradation rate of the organic matter in the sample (as received).
The respiration rate is determined by measuring the rate at which CO2 is released under optimized moisture and
temperature conditions.
Biologically Available Carbon
1.5 Low: Good for all uses mg CO2-C/g OM/day
Biologically Available Carbon (BAC) is a measurement of the rate at which CO2 is released under optimized moisture, temperature,
porosity, nutrients, pH and microbial conditions. If both the RR and the BAC test values are close to the same value, the pile is
optimized for composting. If both values are high the compost pile just needs more time. If both values are low the compost has
stabilized and should be moved to curing. BAC test values that are higher than RR indicate that the compost pile has stalled. This
could be due to anaerobic conditions, lack of available nitrogen due to excessive air converting ammonia to the unavailable nitrate
form, lack of nitrogen or other nutrients due to poor choice of feedstock, pH value out of range, or microbes rendered non-active.
Is Your Compost Mature?
AmmoniaN:NitrateN ratio
0.10 very mature
Composting to stabilize carbon can occur at such a rapid rate that sometimes phytotoxins remain in
the compost and must be neutralized before using in high concentrations or in high-end uses. This
Ammonia N ppm step is called curing. Typically ammonia is in excess with the break-down of organic materials resulting
57 very mature in an increase in pH. This combination results in a loss of volatile ammonia (it smells). Once this toxic
Nitrate N ppm ammonia has been reduced and the pH drops, the microbes convert the ammonia to nitrates. A low
560 mature ammonia + high nitrate score is indicative of a mature compost, however there are many exceptions.
pH value For example, a compost with a low pH (<7) will retain ammonia, while a compost with high lime content
7.29 mature can lose ammonia before the organic fraction becomes stable. Composts must first be stable before
curing indicators apply.
Cucumber Bioassay
100.0 Percent Cucumbers are chosen for this test because they are salt tolerant and very sensitive to ammonia
and organic acid toxicity. Therefore, we can germinate seeds in high concentrations of compost to
measure phytotoxic effects without soluble salts being the limiting factor. Values above 80% for both percent emergence and
vigor are indicative of a well-cured compost. Exceptions include very high salts that affect the cucumbers, excessive concentrations
of nitrates and other nutrients that will be in range when formulated to make a growing media. In addition to testing a 1:1 compost:
vermiculite blend, we also test a diluted 1:3 blend to indicate a more sensitive toxicity level.
Is Your Compost Safe Regarding Health?
Fecal Coliform
< 1000 / g dry wt. Fecal coliforms can survive in both aerobic and anaerobic conditions and is common in all initial
compost piles. Most human pathogens occur from fecal matter and all fecal matter is loaded in fecal coliforms. Therefore fecal
coliforms are used as an indicator to determine if the chosen method for pathogen reduction (heat for compost) has met the
requirements of sufficient temperature, time and mixing. If the fecal coliforms are reduced to below 1000 per gram dry wt. it is
assumed all others pathogens are eliminated. Potential problems are that fecal coliform can regrow during the curing phase or
during shipping. This is because the conditions are now more favorable for growth than during the composting process.
Salmonella Bacteria
Less than 3 3 / 4g dry wt. Salmonella is not only another indicator organism but also a toxic microbe. It has been used in the
case of biosolids industry to determine adequate pathogen reduction.
Metals
Pass The ten heavy metals listed in the EPA 503 regulations are chosen to determine if compost
can be applied to ag land and handled without toxic effects. Most high concentrations of heavy metals are derived from
woodwaste feedstock such as chrome-arsenic treated or lead painted demolition wood. Biosolids are rarely a problem.
Does Your Compost Provide Nutrients or Organic Matter?
Nutrients (N+P2O5+K2O)
2.1 Average nutrient content
This value is the sum of the primary nutrients Nitrogen, Phosphorus and Potassium. Reported units are consistent with those
found on fertilizer formulations. A sum greater than 5 is indicative of a compost with high nutrient content, and best used to supply
nutrients to a receiving soil. A sum below 2 indicates low nutrient content, and is best-used to improve soil structure via the
addition of organic matter. Most compost falls between 2 and 5.
BR-1B
20 May. 15
May.15 D No. 28
Account No.: Date Received
5050578 - 1/2 - 7372 Sample i.d.
Group: Sample I.d. No. 1/2 5050578
INTERPRETATION:Page three of three
AgIndex (Nutrients/Na+Cl)
9 Average nutrient ratio Composts with low AgIndex values have high concentrations of sodium and/or chloride
compared to nutrients. Repeated use of a compost with a low AgIndex (< 2) may result in sodium and/or chloride
acting as the limiting factor compared to nutrients, governing application rates. These composts may be used on well-draining
soils and/or with salt-tolerant plants. Additional nutrients form another source may be needed if the application rate is limited by
sodium or chloride. If the AgIndex is above 10, nutrients optimal for plant growth will be available without concern of sodium and/or
chloride toxicity. Composts with an AgIndex of above 10 are good for increasing nutrient levels for all soils. Most composts score
between 2 and 10. Concentrations of nutrients, sodium, and chloride in the receiving soil should be considered when determining
compost application rates. The AgIndex is a product of feedstock quality. Feedstock from dairy manure, marine waste, industrial
wastes, and halophytic plants are likely to produce a finished compost with a low AgIndex.
Plant Available Nitrogen (lbs/ton)
2 Low N Provider Plant Available Nitrogen (PAN) is calculated by estimating the release rate of Nitrogen from
the organic fraction of the compost. This estimate is based on information gathered from the BAC test and measured ammonia and
nitrate values. Despite the PAN value of the compost, additional sources of Nitrogen may be needed during he growing season to off-
set the Nitrogen demand of the microbes present in the compost. With ample nutrients these microbes can further breakdown organic
matter in the compost and release bound Nitrogen. Nitrogen demand based on a high C/N ratio is not considered in the PAN calculation
because additional Nitrogen should always be supplemented to the receiving soil when composts with a high C/N ratio are applied.
C/N Ratio
13 Indicates maturity As a guiding principal, a C/N ratio below 14 indicates maturity and above 14 indicates
immaturity, however, there are many exceptions. Large woodchips (>6.3mm), bark, and redwood are slow to breakdown and
therefore can result in a relatively stable product while the C/N ratio value is high. Additionally, some composts with chicken manure
and/or green grass feedstocks can start with a C/N ratio below 15 and are very unstable. A C/N ratio below 10 supplies Nitrogen,
while a ratio above 20 can deplete Nitrogen from the soil. The rate at which Nitrogen will be released or used by the microbes is
indicated by the respiration rate (BAC). If the respiration rate is too high the transfer of Nitrogen will not be controlable.
Soluble Nutrients & Salts (EC5 w/w dw - mmhos/cm)
2.7 Average salts This value refers to all soluble ions including nutrients, sodium, chloride and some
soluble organic compounds. The concentration of salts will change due to the release of salts from the organic matter as it degrades,
volatilization of ammonia, decomposition of soluble organics, and conversion of molecular structure. High salts + high AgIndex is
indicative of a compost high in readily available nutrients. The application rate of these composts should be limited by the optimum
nutrient value based on soil analysis of the receiving soil. High Salts + low AgIndex is indicative of a compost low in nutrients with
high concentrations of sodium and/or chloride. Limit the application rate according to the toxicity level of thesodium and/or chloride.
Low salts indicates that the compost can be applied without risking salt toxicity, is likely a good source of organic matter, and that
nutrients will release slowly over time.
Lime Content (lbs. per ton)
820 High lime content Compost high in lime or carbonates are often those produced from chicken manure (layers)
ash materials, and lime products. These are excellent products to use on a receiving soil where lime has been recommended by
soil analysis to raise the pH. Composts with a high lime content should be closely considered for pH requirements when formulating
potting mixes.
Physical Properties
Percent Ash
73.5 High ash content Ash is the non-organic fraction of a compost. Most composts contain approximately 50%
ash (dry weight basis). Compost can be high in ash content for many reasons including: excess minerilzation(old compost),
contamination with soil base material during turning, poor quality feedstock, and soil or mineral products added. Finding the source
and reducing high ash content is often the fastest means to increasing nutrient quality of a compost.
Particle Size % > 6.3 MM (0.25")
0.0 Suitable for all uses Large particles may restrict use for potting soils, golf course topdressings, seed-starter
mixes, and where a fine size distribution is required. Composts with large particles can still be used as excellent additions to field
soils, shrub mixes and mulches.
Particle Size Distribution
Each size fraction is measured by weight, volume and bulk density. These results are particularly relevent with decisions to screen
or not, and if screening, which size screen to use. The bulk density indicates if the fraction screened is made of light weight organic
material or heavy mineral material. Removing large mineral material can greatly improve compost quality by increasing nutrient and
organic concentrations.
Appendix:
Estimated available nutrients for use when calculating application rates
Plant Available Nitrogen (PAN) calculations: lbs/ton (As Rcvd.)
PAN = (X * (organic N)) + ((NH4-N) + (NO3-N))
X value = If BAC < 2 then X = 0.1 Plant Available Nitrogen (PAN) 2.4
If BAC =2.1 to 5 then X = 0.2 Ammonia (NH4-N) 0.08
If BAC =5.1 to 10 then X = 0.3 Nitrate (NO3-N) 0.78
If BAC > 10 then X = 0.4 Available Phosphorus (P2O5*0.64) 5.2
Note: If C/N ratio > 15 additional N should be applied. Available Potassium (K2O) 4.6
20 May. 15
BR-1B
May.15 D No. 28
TEL: [phone]
FAX: [phone]
www.compostlab.com

Account #: 5050578-2/2-7372
Group: May.15 D #29
Reporting Date:
Brooks Contractor
1195 Beal Rd.
Goldston, NC 27252
Attn: Amy Brooks
Date Received: 20 May. 15
Sample Identification: BR-1C
Sample ID #: 5050578 - 2/2
Nutrients Dry wt. As Rcvd. units Stability Indicator:Biologically
Total Nitrogen:1.1 0.73 %CO2 Evolution Respirometery Available C
Ammonia (NH4-N):1500 1000 mg/kg mg CO2-C/g OM/day 4.0 4.1
Nitrate (NO3-N):1.7 1.1 mg/kg mg CO2-C/g TS/day 1.5 1.5
Org. Nitrogen (Org.-N):0.95 0.63 % Stability Rating stable moderately unstable
Phosphorus (as P2O5):0.51 0.34 %
Phosphorus (P):2300 1500 mg/kg
Potassium (as K2O):0.24 0.16 %Maturity Indicator: Cucumber Bioassay
Potassium (K):2000 1300 mg/kg Compost:Vermiculite(v:v) 1:1 1:3
Calcium (Ca):17 12 % Emergence (%) 100 100
Magnesium (Mg):0.27 0.18 % Seedling Vigor (%) 100 100
Sulfate (SO4-S):88 59 mg/kg Description of Plants healthy healthy
Boron (Total B):5.2 3.4 mg/kg
Moisture:0 33.3 %
Sodium (Na):0.11 0.074 %Pathogens Results Units Rating
Chloride (Cl):0.099 0.066 % Fecal Coliform < 2.0 MPN/g pass
pH Value:NA 8.37 unit Salmonella < 3 MPN/4g pass
Bulk Density :29 44 lb/cu ft Date Tested: 20 May. 15
Carbonates (CaCO3):650 440 lb/ton
Conductivity (EC5):2.9 NA mmhos/cm
Organic Matter:36.2 24.1 %Inerts % by weight
Organic Carbon:19.0 12.0 % Plastic < 0.5
Ash:63.8 42.6 % Glass < 0.5
C/N Ratio 17 17 ratio Metal < 0.5
AgIndex 9 9 ratio Sharps ND
Metals Dry wt. EPA Limit units Size & Volume Distribution
Aluminum (Al): 3400 - mg/kg MM % by weight % by volume BD g/cc
Arsenic (As): 1.8 41 mg/kg > 50 0.0 0.0 0.00
Cadmium (Cd): < 1.0 39 mg/kg 25 to 50 0.0 0.0 0.00
Chromium (Cr): 15 1200 mg/kg 16 to 25 0.0 0.0 0.00
Cobalt (Co) 1.8 - mg/kg 9.5 to 16 1.6 1.8 0.50
Copper (Cu): 15 1500 mg/kg 6.3 to 9.5 2.4 2.2 0.63
Iron (Fe): 5700 - mg/kg 4.0 to 6.3 4.5 6.7 0.39
Lead (Pb): 7.1 300 mg/kg 2.0 to 4.0 11.7 17.9 0.38
Manganese (Mn): 190 - mg/kg < 2.0 79.8 71.4 0.64
Mercury (Hg): < 1.0 17 mg/kg Bulk Density Description:<.35 Light Materials,
Molybdenum (Mo): < 1.0 75 mg/kg .35-.60 medium weight materials, >.60 Heavy Materials
Nickel (Ni): 3.7 420 mg/kg Analyst: Assaf Sadeh
Selenium (Se): < 1.0 36 mg/kg
Zinc (Zn): 55 2800 mg/kg
*Sample was received and handled in accordance with TMECC procedures.
June 4, 2015
Account No.: Date Received 20 May. 15
5050578 - 2/2 - 7372 Sample i.d.
Group: Sample I.d. No. 2/2 5050578
INTERPRETATION:Page one of three
Is Your Compost Stable?
Respiration Rate Biodegradation Rate of Your Pile
4.0 mg CO2-C/
g OM/day
Biologically Available Carbon (BAC)Optimum Degradation Rate
4.1 mg CO2-C/
g OM/day
Is Your Compost Mature?
880 Ratio
Ammonia N ppm
1500 mg/kg
dry wt.
Nitrate N ppm
1.7 mg/kg
dry wt.
pH value
8.37 units

Cucumber Emergence
100.0 percent
Is Your Compost Safe Regarding Health?
Fecal Coliform
< 1000 MPN/g dry wt.
Salmonella
Less than 3 /4g dry wt.
Metals US EPA 503
Pass dry wt.
Does Your Compost Provide Nutrients or Organic Matter?
Nutrients (N+P2O5+K2O)
1.9 Percent
dry wt.
AgIndex (Nutrients / Sodium and Chloride Salts)((N+P2O5+K2O) / (Na + Cl))
9 Ratio
Plant Available Nitrogen (PAN)Estimated release for first season
5 lbs/ton
wet wt.
C/N Ratio
17 Ratio
Soluble Available Nutrients & Salts (EC5 w/w dw)
2.9 mmhos/cm
dry wt.
Lime Content (CaCO3)
650 Lbs/ton
dry wt.
What are the physical properties of your compost?
Percent Ash
63.8 Percent ++++++++++++++++++++++++++++++++++++++++++++++++++
dry wt.
Sieve Size % > 6.3 MM (0.25")
4.0 Percent
dry wt.
< Stable >|<Moderately Unstable>|< Unstable >|< High For Mulch
AmmoniaN/NitrateN ratio
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
BR-1C
+++++++++++++++
< Stable >|<Moderately Unstable>|< Unstable >|< High For Mulch
++++++++++++++++
VeryMature>|< Mature >|< Immature
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
VeryMature>|< Mature >|< Immature
+
< Immature >|< Mature
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature >|< Immature
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
< Immature >|< Mature
+++++++
< Safe >|< High Fecal Coliform
+++++++
<Safe (none detected) >|< High Salmonella Count(> 3 per 4 grams)
+++++++++
<All Metals Pass >|< One or more Metals Fail
+++++++++++++++++++++++++++++++++
++++++++++++++
<Low >|< Average >|< High Nutrient Content
++++++++++++++++++++++++++++++++++++++++++++++
Na & Cl >|< Nutrient and Sodium and Chloride Provider >|< Nutrient Provider
< Low >|< Average >|< High Lime Content (as CaCO3)
< High Organic Matter >|< Average >|< High Ash Content
+++++++++++++++++++++++++++++++
All Uses >|< Size May Restrict Uses for Potting mix and Golf Courses
Low Nitrogen Provider>|< Average Nitrogen Provider >|<High Nitrogen Provider
May.15 D No. 29
< Nitrogen Release >|< N-Neutral >|< N-Demand>|< High Nitrogen Demand
+++++++++++++++
SloRelease>|< Average Nutrient Release Rate >|<High Available Nutrients
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++
Account No.: Date Received
5050578 - 2/2 - 7372 Sample i.d.
Group: Sample I.d. No. 2/2 5050578
INTERPRETATION:
Is Your Compost Stable?Page two of three
Respiration Rate
4.0 Moderate-selected use mg CO2-C/g OM/day
The respiration rate is a measurement of the biodegradation rate of the organic matter in the sample (as received).
The respiration rate is determined by measuring the rate at which CO2 is released under optimized moisture and
temperature conditions.
Biologically Available Carbon
4.1 Moderate-selected use mg CO2-C/g OM/day
Biologically Available Carbon (BAC) is a measurement of the rate at which CO2 is released under optimized moisture, temperature,
porosity, nutrients, pH and microbial conditions. If both the RR and the BAC test values are close to the same value, the pile is
optimized for composting. If both values are high the compost pile just needs more time. If both values are low the compost has
stabilized and should be moved to curing. BAC test values that are higher than RR indicate that the compost pile has stalled. This
could be due to anaerobic conditions, lack of available nitrogen due to excessive air converting ammonia to the unavailable nitrate
form, lack of nitrogen or other nutrients due to poor choice of feedstock, pH value out of range, or microbes rendered non-active.
Is Your Compost Mature?
AmmoniaN:NitrateN ratio
880 immature
Composting to stabilize carbon can occur at such a rapid rate that sometimes phytotoxins remain in
the compost and must be neutralized before using in high concentrations or in high-end uses. This
Ammonia N ppm step is called curing. Typically ammonia is in excess with the break-down of organic materials resulting
1500 immature in an increase in pH. This combination results in a loss of volatile ammonia (it smells). Once this toxic
Nitrate N ppm ammonia has been reduced and the pH drops, the microbes convert the ammonia to nitrates. A low
1.7 immature ammonia + high nitrate score is indicative of a mature compost, however there are many exceptions.
pH value For example, a compost with a low pH (<7) will retain ammonia, while a compost with high lime content
8.37 immature can lose ammonia before the organic fraction becomes stable. Composts must first be stable before
curing indicators apply.
Cucumber Bioassay
100.0 Percent Cucumbers are chosen for this test because they are salt tolerant and very sensitive to ammonia
and organic acid toxicity. Therefore, we can germinate seeds in high concentrations of compost to
measure phytotoxic effects without soluble salts being the limiting factor. Values above 80% for both percent emergence and
vigor are indicative of a well-cured compost. Exceptions include very high salts that affect the cucumbers, excessive concentrations
of nitrates and other nutrients that will be in range when formulated to make a growing media. In addition to testing a 1:1 compost:
vermiculite blend, we also test a diluted 1:3 blend to indicate a more sensitive toxicity level.
Is Your Compost Safe Regarding Health?
Fecal Coliform
< 1000 / g dry wt. Fecal coliforms can survive in both aerobic and anaerobic conditions and is common in all initial
compost piles. Most human pathogens occur from fecal matter and all fecal matter is loaded in fecal coliforms. Therefore fecal
coliforms are used as an indicator to determine if the chosen method for pathogen reduction (heat for compost) has met the
requirements of sufficient temperature, time and mixing. If the fecal coliforms are reduced to below 1000 per gram dry wt. it is
assumed all others pathogens are eliminated. Potential problems are that fecal coliform can regrow during the curing phase or
during shipping. This is because the conditions are now more favorable for growth than during the composting process.
Salmonella Bacteria
Less than 3 3 / 4g dry wt. Salmonella is not only another indicator organism but also a toxic microbe. It has been used in the
case of biosolids industry to determine adequate pathogen reduction.
Metals
Pass The ten heavy metals listed in the EPA 503 regulations are chosen to determine if compost
can be applied to ag land and handled without toxic effects. Most high concentrations of heavy metals are derived from
woodwaste feedstock such as chrome-arsenic treated or lead painted demolition wood. Biosolids are rarely a problem.
Does Your Compost Provide Nutrients or Organic Matter?
Nutrients (N+P2O5+K2O)
1.9 low nutrient content
This value is the sum of the primary nutrients Nitrogen, Phosphorus and Potassium. Reported units are consistent with those
found on fertilizer formulations. A sum greater than 5 is indicative of a compost with high nutrient content, and best used to supply
nutrients to a receiving soil. A sum below 2 indicates low nutrient content, and is best-used to improve soil structure via the
addition of organic matter. Most compost falls between 2 and 5.
BR-1C
20 May. 15
May.15 D No. 29
Account No.: Date Received
5050578 - 2/2 - 7372 Sample i.d.
Group: Sample I.d. No. 2/2 5050578
INTERPRETATION:Page three of three
AgIndex (Nutrients/Na+Cl)
9 Average nutrient ratio Composts with low AgIndex values have high concentrations of sodium and/or chloride
compared to nutrients. Repeated use of a compost with a low AgIndex (< 2) may result in sodium and/or chloride
acting as the limiting factor compared to nutrients, governing application rates. These composts may be used on well-draining
soils and/or with salt-tolerant plants. Additional nutrients form another source may be needed if the application rate is limited by
sodium or chloride. If the AgIndex is above 10, nutrients optimal for plant growth will be available without concern of sodium and/or
chloride toxicity. Composts with an AgIndex of above 10 are good for increasing nutrient levels for all soils. Most composts score
between 2 and 10. Concentrations of nutrients, sodium, and chloride in the receiving soil should be considered when determining
compost application rates. The AgIndex is a product of feedstock quality. Feedstock from dairy manure, marine waste, industrial
wastes, and halophytic plants are likely to produce a finished compost with a low AgIndex.
Plant Available Nitrogen (lbs/ton)
5 Low N Provider Plant Available Nitrogen (PAN) is calculated by estimating the release rate of Nitrogen from
the organic fraction of the compost. This estimate is based on information gathered from the BAC test and measured ammonia and
nitrate values. Despite the PAN value of the compost, additional sources of Nitrogen may be needed during he growing season to off-
set the Nitrogen demand of the microbes present in the compost. With ample nutrients these microbes can further breakdown organic
matter in the compost and release bound Nitrogen. Nitrogen demand based on a high C/N ratio is not considered in the PAN calculation
because additional Nitrogen should always be supplemented to the receiving soil when composts with a high C/N ratio are applied.
C/N Ratio
17 Indicates immaturity As a guiding principal, a C/N ratio below 14 indicates maturity and above 14 indicates
immaturity, however, there are many exceptions. Large woodchips (>6.3mm), bark, and redwood are slow to breakdown and
therefore can result in a relatively stable product while the C/N ratio value is high. Additionally, some composts with chicken manure
and/or green grass feedstocks can start with a C/N ratio below 15 and are very unstable. A C/N ratio below 10 supplies Nitrogen,
while a ratio above 20 can deplete Nitrogen from the soil. The rate at which Nitrogen will be released or used by the microbes is
indicated by the respiration rate (BAC). If the respiration rate is too high the transfer of Nitrogen will not be controlable.
Soluble Nutrients & Salts (EC5 w/w dw - mmhos/cm)
2.9 Average salts This value refers to all soluble ions including nutrients, sodium, chloride and some
soluble organic compounds. The concentration of salts will change due to the release of salts from the organic matter as it degrades,
volatilization of ammonia, decomposition of soluble organics, and conversion of molecular structure. High salts + high AgIndex is
indicative of a compost high in readily available nutrients. The application rate of these composts should be limited by the optimum
nutrient value based on soil analysis of the receiving soil. High Salts + low AgIndex is indicative of a compost low in nutrients with
high concentrations of sodium and/or chloride. Limit the application rate according to the toxicity level of thesodium and/or chloride.
Low salts indicates that the compost can be applied without risking salt toxicity, is likely a good source of organic matter, and that
nutrients will release slowly over time.
Lime Content (lbs. per ton)
650 High lime content Compost high in lime or carbonates are often those produced from chicken manure (layers)
ash materials, and lime products. These are excellent products to use on a receiving soil where lime has been recommended by
soil analysis to raise the pH. Composts with a high lime content should be closely considered for pH requirements when formulating
potting mixes.
Physical Properties
Percent Ash
63.8 High ash content Ash is the non-organic fraction of a compost. Most composts contain approximately 50%
ash (dry weight basis). Compost can be high in ash content for many reasons including: excess minerilzation(old compost),
contamination with soil base material during turning, poor quality feedstock, and soil or mineral products added. Finding the source
and reducing high ash content is often the fastest means to increasing nutrient quality of a compost.
Particle Size % > 6.3 MM (0.25")
4.0 May restrict use Large particles may restrict use for potting soils, golf course topdressings, seed-starter
mixes, and where a fine size distribution is required. Composts with large particles can still be used as excellent additions to field
soils, shrub mixes and mulches.
Particle Size Distribution
Each size fraction is measured by weight, volume and bulk density. These results are particularly relevent with decisions to screen
or not, and if screening, which size screen to use. The bulk density indicates if the fraction screened is made of light weight organic
material or heavy mineral material. Removing large mineral material can greatly improve compost quality by increasing nutrient and
organic concentrations.
Appendix:
Estimated available nutrients for use when calculating application rates
Plant Available Nitrogen (PAN) calculations: lbs/ton (As Rcvd.)
PAN = (X * (organic N)) + ((NH4-N) + (NO3-N))
X value = If BAC < 2 then X = 0.1 Plant Available Nitrogen (PAN) 4.5
If BAC =2.1 to 5 then X = 0.2 Ammonia (NH4-N) 2.00
If BAC =5.1 to 10 then X = 0.3 Nitrate (NO3-N) 0.00
If BAC > 10 then X = 0.4 Available Phosphorus (P2O5*0.64) 4.4
Note: If C/N ratio > 15 additional N should be applied. Available Potassium (K2O) 3.1
20 May. 15
BR-1C
May.15 D No. 29
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TEL: [phone]
FAX: [phone]
www.compostlab.com
Account #: 5050578-1/2-7372
Group: May.15 D #28
Reporting Date:
Brooks Contractor
1195 Beal Rd.
Attn: Amy Brooks
Date Received: 20 May. 15
Sample Identification: BR-1B
Sample ID #: 5050578 - 1/2
Metals Results Units MDL % Recovery Date Tested
Arsenic (As): 2.5 mg/kg dw 1.0 101.4 28 May. 15
Cadmium (Cd): Less than 1.0 mg/kg dw 1.0 93.9 28 May. 15
Chromium (Cr): 16 mg/kg dw 1.0 101.2 28 May. 15
Copper (Cu): 27 mg/kg dw 1.0 94.2 28 May. 15
Lead (Pb): 13 mg/kg dw 1.0 98.1 28 May. 15
Mercury (Hg): Less than 1.0 mg/kg dw 1.0 117.2 28 May. 15
Molybdenum (Mo): Less than 1.0 mg/kg dw 1.0 100.5 28 May. 15
Nickel (Ni): 4.5 mg/kg dw 1.0 102.0 28 May. 15
Selenium (Se): Less than 1.0 mg/kg dw 1.0 93.8 28 May. 15
Zinc (Zn): 90 mg/kg dw 1.0 87.9 28 May. 15
Cobalt (Co) 2.6 mg/kg dw 0.50 99.8 28 May. 15
Total Solids (TMECC 03.09) 68 % 0.05 NA 22 May. 15
Bacteria Results Units MDL Date Tested
Fecal Coliform Less than 2.0 MPN/g dw 2 20 May. 15
Salmonella Less than 3 MPN/4g dw 3 20 May. 15
Pollutant Loading Rate:
Multiply mg/kg dry weight values times 0.0621 to give you kilograms pollutant per 100
metric ton compost as-received based on a moisture content of 31.5 percent.
Method (metals): EPA 3050B / EPA 6010
Method (metals): TMECC 04.12-B / 04.14-A
Method (Mercury Hg) TMECC 04.06 / EPA 7471
Method (Fecal Coliform): Standard Methods 9221E
Method (Salmonella): TMECC 07.02-A
Analyst: Assaf Sadeh
Goldston, NC 27252
June 4, 2015
Metals & Bacteria
TEL: [phone]
FAX: [phone]
www.compostlab.com
Account #: 5050578-2/2-7372
Group: May.15 D #29
Reporting Date:
Brooks Contractor
1195 Beal Rd.
Attn: Amy Brooks
Date Received: 20 May. 15
Sample Identification: BR-1C
Sample ID #: 5050578 - 2/2
Metals Results Units MDL % Recovery Date Tested
Arsenic (As): 1.8 mg/kg dw 1.0 101.4 28 May. 15
Cadmium (Cd): Less than 1.0 mg/kg dw 1.0 93.9 28 May. 15
Chromium (Cr): 15 mg/kg dw 1.0 101.2 28 May. 15
Copper (Cu): 15 mg/kg dw 1.0 94.2 28 May. 15
Lead (Pb): 7.1 mg/kg dw 1.0 98.1 28 May. 15
Mercury (Hg): Less than 1.0 mg/kg dw 1.0 117.2 28 May. 15
Molybdenum (Mo): Less than 1.0 mg/kg dw 1.0 100.5 28 May. 15
Nickel (Ni): 3.7 mg/kg dw 1.0 102.0 28 May. 15
Selenium (Se): Less than 1.0 mg/kg dw 1.0 93.8 28 May. 15
Zinc (Zn): 55 mg/kg dw 1.0 87.9 28 May. 15
Cobalt (Co) 1.8 mg/kg dw 0.50 99.8 28 May. 15
Total Solids (TMECC 03.09) 67 % 0.05 NA 22 May. 15
Bacteria Results Units MDL Date Tested
Fecal Coliform Less than 2.0 MPN/g dw 2 20 May. 15
Salmonella Less than 3 MPN/4g dw 3 20 May. 15
Pollutant Loading Rate:
Multiply mg/kg dry weight values times 0.0605 to give you kilograms pollutant per 100
metric ton compost as-received based on a moisture content of 33.3 percent.
Method (metals): EPA 3050B / EPA 6010
Method (metals): TMECC 04.12-B / 04.14-A
Method (Mercury Hg) TMECC 04.06 / EPA 7471
Method (Fecal Coliform): Standard Methods 9221E
Method (Salmonella): TMECC 07.02-A
Analyst: Assaf Sadeh
Goldston, NC 27252
June 4, 2015
Metals & Bacteria