Clean Air Buildings

Building Data Report

0. Space Type BOS-School

1. Establishment Name Winthrop John Elem
2. Address address

3. City Boston

4. State / Province MA

5. Country USA

6. Date 03/21/2021

7. Data Source School District

8. Performed by External Company

9. Company Name Address Contact Cashins & Associates, Inc. 599 North Ave #8, Wakefield, MA 01880

10. Requirement Source Boston School 3 ACH guideline

11. Technology Natural Ventilation

12. Min ACH 4

13. Max ACH 15.1

14. Avg ACH 8.5

15. eACH 0

16. Filter MERV

17. Percent Outside Air 100

18. ON and Ventilates Entire Indoor Area Yes

19. Vent Clearance min 6 ft Yes

20. No of Rooms 7

21. sqft 957.4

22. cuft 9574

23. No of Buildings 1

24. Comments Source Boston School District March 18, 2021. https://www.bostonpublicschools.org/Page/8463 . https://drive.google.com/file/d/1bzam7XeMQDjjv7Og_86PS41K78hBEOfT/view . assumed 10ft ceiling. wACH windows provided in dataset. Calculated wACH from measured CFM rates in dataset do not match. Differences due to errors. Did not use calculated wACH.
Room 2*. ACH Copy paste check (uses total or outside) 12.5. Window opening length (inches) 36. Window opening height (inches) 4. Co2 ambient (ppm) 399. Co2 test start (ppm) 2902. Co2 test end (ppm) 2052. Run time (min:sec) 5:00. Window air velocity max 919. Window air velocity min 435. Window air velocity avg 606. Window outside air volume (cfm) avg 606. Window cu-ft 1.00. Window cfm max 919. Window cfm min 435. Window cfm avg 606. wACH max 6.8. wACH min 3.2. wACH avg 4.5. wACH Copy paste check (does not match calcultated) 12.5.
Room Tchrs Lnge. ACH Copy paste check (uses total or outside) 15.1. Window opening length (inches) 34. Window opening height (inches) 4. Co2 ambient (ppm) 399. Co2 test start (ppm) 3182. Co2 test end (ppm) 2083. Run time (min:sec) 2:00. Window air velocity max 611. Window air velocity min 349. Window air velocity avg 501. Window outside air volume (cfm) avg 473. Window cu-ft 0.94. Window cfm max 577. Window cfm min 330. Window cfm avg 473. wACH max 11.2. wACH min 6.4. wACH avg 9.2. wACH Copy paste check (does not match calcultated) 15.1.
Room 4. ACH Copy paste check (uses total or outside) 5.3. Window opening length (inches) 39. Window opening height (inches) 4. Co2 ambient (ppm) 418. Co2 test start (ppm) 2048. Co2 test end (ppm) 1223. Run time (min:sec) 8:00. Window air velocity max 737. Window air velocity min 389. Window air velocity avg 556. Window outside air volume (cfm) avg 602. Window cu-ft 1.08. Window cfm max 798. Window cfm min 421. Window cfm avg 602. wACH max 5.9. wACH min 3.1. wACH avg 4.5. wACH Copy paste check (does not match calcultated) 5.3.
Room 9. ACH Copy paste check (uses total or outside) 4. Window opening length (inches) 39. Window opening height (inches) 4. Co2 ambient (ppm) 418. Co2 test start (ppm) 2069. Co2 test end (ppm) 1264. Run time (min:sec) 10:00. Window air velocity max 390. Window air velocity min 32. Window air velocity avg 136. Window outside air volume (cfm) avg 147. Window cu-ft 1.08. Window cfm max 423. Window cfm min 35. Window cfm avg 147. wACH max 2.7. wACH min 0.2. wACH avg 1.0. wACH Copy paste check (does not match calcultated) 4.
Room 6. ACH Copy paste check (uses total or outside) 7.1. Window opening length (inches) 37. Window opening height (inches) 4. Co2 ambient (ppm) 400. Co2 test start (ppm) 2030. Co2 test end (ppm) 1200. Run time (min:sec) 6:00. Window air velocity max 657. Window air velocity min 363. Window air velocity avg 538. Window outside air volume (cfm) avg 553. Window cu-ft 1.03. Window cfm max 675. Window cfm min 373. Window cfm avg 553. wACH max 5.0. wACH min 2.8. wACH avg 4.1. wACH Copy paste check (does not match calcultated) 7.1.
Room 10. ACH Copy paste check (uses total or outside) 7.4. Window opening length (inches) 37. Window opening height (inches) 4. Co2 ambient (ppm) 400. Co2 test start (ppm) 2200. Co2 test end (ppm) 1375. Run time (min:sec) 5:00. Window air velocity max 638. Window air velocity min 38. Window air velocity avg 212. Window outside air volume (cfm) avg 218. Window cu-ft 1.03. Window cfm max 656. Window cfm min 39. Window cfm avg 218. wACH max 4.8. wACH min 0.3. wACH avg 1.6. wACH Copy paste check (does not match calcultated) 7.4.
Room 103. ACH Copy paste check (uses total or outside) 9.9. Window opening length (inches) 72. Window opening height (inches) 4. Co2 ambient (ppm) 404. Co2 test start (ppm) 2020. Co2 test end (ppm) 1109. Run time (min:sec) 5:00. Window air velocity max 1196. Window air velocity min 404. Window air velocity avg 737. Window outside air volume (cfm) avg 1474. Window cu-ft 2.00. Window cfm max 2392. Window cfm min 808. Window cfm avg 1474. wACH max 15.0. wACH min 5.1. wACH avg 9.2. wACH Copy paste check (does not match calcultated) 9.9.

0. Space Type	BOS-School
1. Establishment Name	Winthrop John Elem
2. Address	address
3. City	Boston
4. State / Province	MA
5. Country	USA
6. Date	03/21/2021
7. Data Source	School District
8. Performed by	External Company
9. Company Name Address Contact	Cashins & Associates, Inc. 599 North Ave #8, Wakefield, MA 01880
10. Requirement Source	Boston School 3 ACH guideline
11. Technology	Natural Ventilation
12. Min ACH	4
13. Max ACH	15.1
14. Avg ACH	8.5
15. eACH	0
16. Filter MERV
17. Percent Outside Air	100
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	7
21. sqft	957.4
22. cuft	9574
23. No of Buildings	1
24. Comments	Source Boston School District March 18, 2021. https://www.bostonpublicschools.org/Page/8463 . https://drive.google.com/file/d/1bzam7XeMQDjjv7Og_86PS41K78hBEOfT/view . assumed 10ft ceiling. wACH windows provided in dataset. Calculated wACH from measured CFM rates in dataset do not match. Differences due to errors. Did not use calculated wACH. Room 2*. ACH Copy paste check (uses total or outside) 12.5. Window opening length (inches) 36. Window opening height (inches) 4. Co2 ambient (ppm) 399. Co2 test start (ppm) 2902. Co2 test end (ppm) 2052. Run time (min:sec) 5:00. Window air velocity max 919. Window air velocity min 435. Window air velocity avg 606. Window outside air volume (cfm) avg 606. Window cu-ft 1.00. Window cfm max 919. Window cfm min 435. Window cfm avg 606. wACH max 6.8. wACH min 3.2. wACH avg 4.5. wACH Copy paste check (does not match calcultated) 12.5. Room Tchrs Lnge. ACH Copy paste check (uses total or outside) 15.1. Window opening length (inches) 34. Window opening height (inches) 4. Co2 ambient (ppm) 399. Co2 test start (ppm) 3182. Co2 test end (ppm) 2083. Run time (min:sec) 2:00. Window air velocity max 611. Window air velocity min 349. Window air velocity avg 501. Window outside air volume (cfm) avg 473. Window cu-ft 0.94. Window cfm max 577. Window cfm min 330. Window cfm avg 473. wACH max 11.2. wACH min 6.4. wACH avg 9.2. wACH Copy paste check (does not match calcultated) 15.1. Room 4. ACH Copy paste check (uses total or outside) 5.3. Window opening length (inches) 39. Window opening height (inches) 4. Co2 ambient (ppm) 418. Co2 test start (ppm) 2048. Co2 test end (ppm) 1223. Run time (min:sec) 8:00. Window air velocity max 737. Window air velocity min 389. Window air velocity avg 556. Window outside air volume (cfm) avg 602. Window cu-ft 1.08. Window cfm max 798. Window cfm min 421. Window cfm avg 602. wACH max 5.9. wACH min 3.1. wACH avg 4.5. wACH Copy paste check (does not match calcultated) 5.3. Room 9. ACH Copy paste check (uses total or outside) 4. Window opening length (inches) 39. Window opening height (inches) 4. Co2 ambient (ppm) 418. Co2 test start (ppm) 2069. Co2 test end (ppm) 1264. Run time (min:sec) 10:00. Window air velocity max 390. Window air velocity min 32. Window air velocity avg 136. Window outside air volume (cfm) avg 147. Window cu-ft 1.08. Window cfm max 423. Window cfm min 35. Window cfm avg 147. wACH max 2.7. wACH min 0.2. wACH avg 1.0. wACH Copy paste check (does not match calcultated) 4. Room 6. ACH Copy paste check (uses total or outside) 7.1. Window opening length (inches) 37. Window opening height (inches) 4. Co2 ambient (ppm) 400. Co2 test start (ppm) 2030. Co2 test end (ppm) 1200. Run time (min:sec) 6:00. Window air velocity max 657. Window air velocity min 363. Window air velocity avg 538. Window outside air volume (cfm) avg 553. Window cu-ft 1.03. Window cfm max 675. Window cfm min 373. Window cfm avg 553. wACH max 5.0. wACH min 2.8. wACH avg 4.1. wACH Copy paste check (does not match calcultated) 7.1. Room 10. ACH Copy paste check (uses total or outside) 7.4. Window opening length (inches) 37. Window opening height (inches) 4. Co2 ambient (ppm) 400. Co2 test start (ppm) 2200. Co2 test end (ppm) 1375. Run time (min:sec) 5:00. Window air velocity max 638. Window air velocity min 38. Window air velocity avg 212. Window outside air volume (cfm) avg 218. Window cu-ft 1.03. Window cfm max 656. Window cfm min 39. Window cfm avg 218. wACH max 4.8. wACH min 0.3. wACH avg 1.6. wACH Copy paste check (does not match calcultated) 7.4. Room 103. ACH Copy paste check (uses total or outside) 9.9. Window opening length (inches) 72. Window opening height (inches) 4. Co2 ambient (ppm) 404. Co2 test start (ppm) 2020. Co2 test end (ppm) 1109. Run time (min:sec) 5:00. Window air velocity max 1196. Window air velocity min 404. Window air velocity avg 737. Window outside air volume (cfm) avg 1474. Window cu-ft 2.00. Window cfm max 2392. Window cfm min 808. Window cfm avg 1474. wACH max 15.0. wACH min 5.1. wACH avg 9.2. wACH Copy paste check (does not match calcultated) 9.9.

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