Attachment D:

Response Rates and Descriptive Statistics for 

WasteWise Program
1

WasteWise Data 2008-2010

I. Overall Response Rate 

A. Registration Form: N/A (universe of potential respondents is unknown; 100% of partners complete the 

form)

B. Assessment Form

Reporting Year Number of Reports 

Received

Number of Active 

Partners

Response Rate

2008 305 1,054* 29%

2009 489 1,054* 46%

2010 372** 1,054 35%

*Estimate, based on 2010 active partners. Exact number may be different due to Partner Assurance Process implemented in 2008. 

**As of April 22, 2011. WasteWise is still processing 2010 data. 

II. Items of Non-Response 

A. Section II: Registration Form - Goals

Approximately 50% of partners did not respond to the question in this section (based on a review of a 

random sample of 20 forms)

B. Sections II-IV: Assessment Form – number of partners who did not provide any response in that section

Reporting Year Section II: Waste 

Prevention/Recycling

Section III: Cost 

Savings/Revenue

Section IV: Buy Recycled 

Products

2008 17 (6%) 113 (37%) 101 (33%)

2009 38 (8%) 152 (31%) 168 (34%)

2010 7 (2%)* 118 (32%)* 135 (36%)*

*As of April 22, 2011. WasteWise is still processing 2010 data. 

III. Descriptive Statistics

A. Section II: Registration Form

Not Applicable: This question is now qualitative

B. Sections II-IV of Assessment Form

1. Section II: Waste Prevention/Recycling

Reporting Year Waste Prevention

(tons)

Recycling

(tons)

Composting

(tons)

2008

No. of Responses 153 270 86

Mean 18,863.14 25,373.58 23,466.81

St. Dev. 151,828.31 146,656.49 200,301.35

Median 45.00 452.02 44.90

Mode 1.25 120.17 0.60

2009

No. of Responses 184 439 133

Mean 10,278.59 21,924.22 16,162.07

St. Dev. 102,326.15 127,324.84 170,563.80

Median 13.86 279.12 60.00

Mode 0.25 0.01 5.00
2

2010*

No. of Responses 204 356 129

Mean 10,751.23 17,066.09 16,616.01

St. Dev. 100,074.57 94,986.87 159,587.93

Median 29.36 383.99 50.99

Mode 0.02 31.2 0.03

**As of April 22, 2011. WasteWise is still processing 2010 data. 

2. Section III: Cost Savings/Revenue

Reporting Year Waste 

Prevention

Revenue

Avoided Purchasing 

Costs Due to Waste 

Prevention

Recycling 

Revenue

Avoided Disposal 

Costs Due to Waste 

Prev. and Recycling

2008

No. of Responses 59 85 119 158

Mean $2,072,424 $4,434,460 $5,778,462 $964,919

St. Dev. $8,530,461 $27,941,496 $46,331,512 $3,255,338

Median $8,918 $5,000 $72,972 $44,614

Mode $1000 $500 $2000 $1

2009

No. of Responses 69 148 190 228

Mean $2,273,415 $2,696,783 $1,587,731 $970,065

St. Dev. $9,207,472 $20,733,544 $10,542,795 $4,438,460

Median $4,164 $5,478 $16,896 $25,559

Mode $1,000 $1,000 $2,000 $1,000

2010*

No. of Responses 67 115 172 176

Mean $2,180,260 $1,546,416 $3,059,495 $1,014,420

St. Dev. $8,435,576 $9,722,155 $22,343,209 $3,215,818

Median $10,414 $10,160 $31,973 $30,450

$1,000 $100 $2,000 $30,000

*As of April 22, 2011. WasteWise is still processing 2010 data. 

3. Section IV: Buy Recycled*

Reporting Year Current Percent Previous Percent Units Purchased (tons)

2008

No. of Responses 128 128 128

Mean 54% 29% 29,432.45

St. Dev. 0.31 0.33 285,209.98

Median 40% 20% 6.89

Mode 100% 0% N/A

2009

No. of Responses 199 199 199

Mean 57% 33% 1,458.51

St. Dev. 0.32 0.34 8,889.40

Median 46% 29% 4.90

Mode 100% 0% 0.60
3

2010**

No. of Responses 162 162 162

Mean 57% 30% 1,976.96

St. Dev. 0.31 0.32 8,388.14

Median 46% 29% 7.83

Mode 100% 0% 3.0

* Note: Partners may provide more than one answer for this section for different products purchased. 

**As of April 22, 2011. WasteWise is still processing 2010 data. 

4. Manufacture Recycled*

Reporting Year Current Percent Previous Percent Units Manufactured 

(tons)

2008

No. of Responses 10 10 10

Mean 82% 52% 16,035.63

St. Dev. 0.41 0.52 30,526.20

Median 92% 57% 1,089.30

Mode 100% 0% N/A

2009

No. of Responses 19 19 19

Mean 87% 66% 18,650.21

St. Dev. 0.20 0.40 52,477.98

Median 98% 80% 779.98

Mode 100% 100% N/A

2010*

No. of Responses 20 20 20

Mean 78% 43% 3,474.58

St. Dev. 0.34 0.44 9,410.47

Median 100% 23% 133.40 

Mode 100 0 N/A

* Note: Partners may provide more than one answer for this section for different products manufactured.

**As of April 22, 2011. WasteWise is still processing 2010 data.