®

Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be madeto the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization.

13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com

Lab # 8825959 Report of Analysis Report Number: 20-322-4031

Account: RUSTY WILLARD

25124 CITY OF DENTON

1100 SOUTH MAYHILL RD

DENTON TX 76208 Robert Ferris

Account Manager

Date Sampled: 2020-11-03 402-829-9871

Date Received: 2020-11-04 July and August Screened compost

Sample ID: July and August

Total content,

Analysis Analysis lbs per ton

(as rec'd) (dry weight) (as rec'd)

NUTRIENTS

Nitrogen

Total Nitrogen % 1.23 2.08 24.6

Organic Nitrogen % 1.12 1.89 22.3

Ammonium Nitrogen % 0.114 0.193 2.3

Nitrate Nitrogen % < 0.01 ---- ----

Major and Secondary Nutrients

Phosphorus % 0.62 1.05 12.4

Phosphorus as P2O5 % 1.42 2.40 28.4

Potassium % 0.31 0.52 6.2

Potassium as K2O % 0.37 0.63 7.4

Sulfur % 0.34 0.57 6.8

Calcium % 3.61 6.10 72.2

Magnesium % 0.17 0.29 3.4

Sodium % 0.060 0.101 1.2

Micronutrients

Iron ppm 20700 34996 41.4

Manganese ppm 292 494 0.6

Boron ppm < 100 ---- ----

OTHER PROPERTIES

Moisture % 40.85

Total Solids % 59.15 1183.0

Organic Matter % 27.00 45.65 540.0

Ash % 30.80 52.07 616.0

Total Carbon % 14.17 23.96

Chloride % 0.02 0.03

pH 7.8

Conductivity 1:5 (Soluble Salts) mS/cm 4.11

PAGE 1/9

NOTE:

This compost product has been sampled and tested as required by the Seal of Testing Assurance Program of the United States Composting Council (USCC), using certain methods from the “Test Methods for the Examination of Compost and Composting” manual. Test results are available upon request by calling City of Denton at 940-349-8290 referencing MWL report 20-322-4031. The USCC makes no warranties regarding this product or its contents, quality, or suitability for any particular use.

For additional information pertaining to compost use, the specific compost parameters tested for within theSeal of Testing Assurance Program, or the program in general, log on to the US Composting Council'swebsite at www.compostingcouncil.org.

Directions for Product Use:

The USCC does not assess whether or not, or to what extent, these directions are sound, sufficient or otherwise appropriate. It is the participant’s responsibility alone to ensure that they are.

Compost Ingredients:

®

Our reports and letters are for the exclusive and confidential use of our clients and may not be reproduced in whole or in part, nor may any reference be madeto the work, the results, or the company in any advertising, news release, or other public announcements without obtaining our prior written authorization.

13611 B Street • Omaha, Nebraska 68144-3693 • (402) 334-7770 • FAX (402) 334-9121 • www.midwestlabs.com

Lab # 8825959 Biological & Physical Properties Report Number: 20-322-4031

Account: RUSTY WILLARD

25124 CITY OF DENTON

1100 SOUTH MAYHILL RD

DENTON TX 76208 Robert Ferris

Client Service Representative

Date Sampled: 2020-11-03 402-829-9871

Date Received: 2020-11-04 July and August Screened compost

Sample ID: July and August

Analysis Analysis

(as rec'd) (dry weight) Units Detection Limit Method

Biological Properties

Germination 100 % 1 TMECC 05.05A

Germination Vigor 95 % 1 TMECC 05.05A

0.03 TMECC 05.08B

0.04 TMECC 05.08B

Fecal Coliform 405 mpn/g 0.2 EPA 1681

Salmonella < 0.26 mpn/4g 0.26 EPA 1682Stability Rating Stable N/A N/A TMECC 05.08B

Physical Properties

Bulk Density (Loose) 1028 lbs/cu yard 1 WT/VOL

Bulk Density (Packed) 1281 lbs/cu yard 1 WT/VOL

Film Plastics n.d. % 0.25 Microscopic

Glass Fragments n.d. % 0.25 Microscopic

Hard Plastics n.d. % 0.25 Microscopic

Metal Fragment n.d. % 0.25 Microscopic

Sharps Absent --- --- Microscopic

Max. Particle Length 1.0 inches N/A TMECC Sieve

Sieve % Passing 3" 100 % 0.01 TMECC Sieve

Sieve % Passing 2" 100 % 0.01 TMECC Sieve

Sieve % Passing 1.5" 100 % 0.01 TMECC Sieve

Sieve % Passing 1" 100 % 0.01 TMECC Sieve

Sieve % Passing 3/4" 100 % 0.01 TMECC Sieve

Sieve % Passing 5/8" 100 % 0.01 TMECC Sieve

Sieve % Passing 3/8" 98 % 0.01 TMECC Sieve

Sieve % Passing 1/4" 96 % 0.01 TMECC Sieve

CO2 OM Evolution mgCO2-C/gOM/day 0.01

CO2 Solids Evolution mgCO2-C/gTS/day 0.01

PAGE 2/9

Compost Results Interpretations Report #: 20-322-4031

Page 1 DATE RECEIVED: 2020-11-04

Organic Matter %

27.00 As Received Greater than 20% indicates a desirable range for compost on a dry weight basis.

45.65 Dry Weight

C/N Ratio

11.5:1 20-30 indicates an ideal range for the initial compost process.

10-20 indicates an ideal range for a finished compost.

Moisture %

40.85 <35% = Indicates overly dry compost

>55% = Indicates overly wet compost

Compost is a significant source of Organic Matter, which is an important supplier of carbon. Organic Matter improves soil and plant efficiency by improving soil physical properties, providing a source of energy to beneficial organisms, and enhancing the reservoir of soil nutrients.

All organic matter is made up of substantial amounts of carbon with lesser amounts of nitrogen. The balance of these two elements is called the Carbon/Nitrogen Ratio. For the best performance, the compost pile requires the correct proportion of carbon for energy and nitrogen for protein production. If the C:N ratio is too high (excess carbon) decomposition slows down. If the C:N ratio is too low (excess Nitrogen) the compost pile could be difficult to manage.

Moisture Percent is the measure of water present in the compost and expressed as a percentage of total weight. Moisture present affects handling and transport. Overly dry will be light and dusty while overly wet will be heavy and clumpy. A desirable moisture content of finished compost will range between 40 to 50%.

PAGE 3/9

Compost Results Interpretations Report #: 20-322-4031

Page 2 DATE RECEIVED: 2020-11-04

Conductivity 1:5

4.1

Conductivity Level Interpretation

Greater than 10Very High nutrient content. Use for Ag Applications

5 - 10High nutrient content. Use for Ag Applications

3 - 5Higher than desirable for salt sensitive plants, some loss of vigor

0.6 - 3Desirable range for most plants

0.3 - 0.6Ideal range for greenhouse growth media

0.0 - 0.3Very Low: Indicates very low nutrient status: plants may show deficiencies.

Conductivity or Soluble Salts measures the conductance of electrical current in a liquid compost slurry. Excessive soluble salt content in a compost can prevent or delay seed germination and proper root growth. Conductivity analysis is done on a 1:5

basis.

PAGE 4/9

Compost Results Interpretations Report #: 20-322-4031

Page 3 DATE RECEIVED: 2020-11-04

pH Value

7.8 0 to 14 scale with 6 to 8 as normal pH levels for compost

A pH in the 6 to 8 pH range indicates a more mature compost

pH measures the acidity or alkalinity of the compost, and is a measurement of the hydrogen ion activity of a soil or compost on a

logarithmic scale. The pH scale ranges from 0 to 14 and 7 indicates a neutral pH. Growing media with a higher pH or pH

greater than 7 can benefit from a compost that has a more acidic pH or pH below 7. This type of application will possibly

lower the soil pH making the soil more conducive to plants that thrive in a more acidic soil condition.

Nutrient Index (Ag Index)

>10 The Nutrient Index normally runs between 1 and 10.

The Nutrient Index is obtained by dividing the total nutrients (N,P,K) by the amount of salt (Sodium and Chloride). The higher the Nutrient

Index the less chance of having a toxic buildup of Sodium (salt) in the soil. AG INDEX CHART

1 2 3 4 5 6 7 8 9 10 > 10

Nutrients (N+P205+K20)

5.11 Average Nutrient Content Dry Weight <2 = Low, >5 = High

1-1.5-0.5 Rating As Received

saltinjury

possible

use on soils with excellent drainage characteristics, good water quality and low salts

you may use on soils with poor drainage, poor waterquality, or high salts

for all soils

The most commonly used compost data is the amount of Nitrogen, Phosphate, and Potash (abbreviated as N,P,K) present and the information is similar to that found in common fertilizers. If a compost result has the rating 1-2-2 it means that the compost has 1% Nitrogen, 2% Phosphate and 2% Potash. Most compost tests will have a average nutrient level (N+P+K) of < 5%.

PAGE 5/9

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Cadm

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Chrom

ium (total)

19.4 32.8

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trh1-2020/11/10

Mercury (total)

0.08 0.14

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trh1-2020/11/10

Lead (total)7.6

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Molybdenum

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Nickel (total)

6.0 10.1

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Selenium

(total)n.d.

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Zinc (total)

183.0 309.3

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Copper (total)

106 179

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Arsenic (total)

3.76 6.35

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A 1681 holding tim

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post or biosolids so please contact the regulatory body in your state for their requirem

ents. E

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1682 holding time of <

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post has been exceeded. If a level of S

almonella w

as reported, the value would be considered an estim

ate. Individual states enforce different holding times

for compost or biosolids so please contact the regulatory body in your state for their requirem

ents. n.d. =

not detected , ppm =

parts per million, ppm

= m

g/kg

For questions please contact:

Rob F

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ccount Manager

rferris@m

idwestlabs.com

(402)829-9871

PA

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6/9

PAGE 7/9

PAGE 8/9

PAGE 9/9

940-349-8290

Product Name: July and AuguestSample Date: 11/3/2020

Compost Parameters Reported as (units of measure) Test Results Test Results

Plant Nutrients: %, weight basis %, wet weight basis %, dry weight basis

Nitrogen Total N 1.23 2.08

Phosphorus P2O5 1.42 2.40

Potassium K2O 0.37 0.63

Calcium Ca 3.61 6.10

Magnesium Mg 0.17 0.29

Moisture Content %, wet weight basis 40.85

Organic Matter Content %, dry weight basis 45.65

pH pH units 7.8

Soluble Salts (electrical conductivity EC 5 )

mS/cm 4.11

Particle Size % < 9.5 mm (⅜ in.), dw basis 98

Stability Indicator (respirometry) mg CO2-C/g OM/day 0.03

mg CO2-C/g TS/day 0.04

Maturity Indicator (bioassay)

Percent Emergence average % of control 100

Relative Seedling Vigor average % of control 95

PASS/FAIL: per US EPA Class A standard, 40 CFR § 503.32(a)

(Fecal Coliform > 1000 mpn/g)

Participants in the US Composting Council’s Seal of Testing Assurance Program have shown the commitment to testtheir compost products on a prescribed basis and provide this data, along with compost end use instructions, as a meansto better serve the needs of their compost customers.

LABORATORY: Midwest Laboratories, Inc. 13611 B St. Omaha, NE 68144 (402)334-7770 ph (402)334-9121 fax

Select Pathogens PASS

Trace Metals PASS/FAIL: per US EPA Class A standard, 40 CFR § 503.13, Tables 1 and 3.

PASS

City of DentonRusty Willard1100 South Mayhill RdDenton, TX 76208

COMPOST TECHNICAL DATA SHEET

940-349-8290

Product Name: July and August

Sample Date: 11/3/2020Lab Number: 8825959

Midwest Lab Report Number: 20-322-4031

Compost Parameters Method Reported as (units of measure) Test Results Tx DOT

Moisture Content AOAC %, wet weight basis 40.85

Organic Matter Content Loss-On-Ignition 550C % Dry Weight 45.65 25-65

Particle Size TMECC % Passing 5/8" (dry weight) 100 95

Particle Size TMECC % Passing 3/8" (dry weight) 98 70

pH pH Meter pH units 7.8 5.5-8.5

Soluble Salts (dry weight) (electrical conductivity EC 5 )

Saturated Paste Extractconductivity meter

mS/cm 4.11 <5.0 dS/m

Stability Indicator (respirometry) TMECC mg CO2-C/g TS/day 0.03 <7

Maturity Indicator (bioassay)

Percent Emergence average % of control 100 >80

Relative Seedling Vigor average % of control 95 >80

EPA 1681

(Fecal Coliform)Trace Metals PASS/FAIL: per US EPA Class A

standard, 40 CFR § 503.13, Tables 1 and 3.

PASS

PASS/FAIL: per US EPA Class A standard, 40 CFR § 503.32(a) PASS

COMPOST TECHNICAL DATA SHEET - Tx DOTLABORATORY: Midwest Laboratories, Inc. 13611 B St. Omaha,NE 68144 (402)334-7770 ph (402)334-9121 fax

Participants in the US Composting Council’s Seal of Testing Assurance Program have shown the commitment to test their compost products on a prescribedbasis and provide this data, along with compost end use instructions, as a means to better serve the needs of their compost customers.

City of Denton

1000 MPN/g Max

Rusty Willard

Denton, TX 762081100 South Mayhill Rd

Select Pathogens