There is a sewer smell in my backyard. How do I figure out where it is coming from?

Tribal headquarters

3009 Portland Ave E, Tacoma, WA 98404, USA

Bus station

S 48th St, Tacoma, WA 98409, USA

Park

1420 S Wilton Rd, Tacoma, WA 98465, USA

Passport office

1102 A St, Tacoma, WA 98402, USA

Bottled water supplier

7701 S Hosmer St A, Tacoma, WA 98408, USA

Non-profit organization

4824 S Tacoma Way, Tacoma, WA 98409, USA

American restaurant

7837 S Tacoma Way, Tacoma, WA 98409, USA

Charity

2510 S 84th St # 33B, Tacoma, WA 98499, USA