What does the comparison of BMP costs indicate?

What does the comparison of BMP costs indicate?

• A. Structural BMPs are higher cost; behavior changes are lower cost
• B. Structural BMPs are cheaper than behavior changes
• C. All BMPs cost the same
• D. Maintenance costs dominate

Answer: (A)

When you compare costs for BMPs, the main idea is that building structural features usually costs more money upfront and over their life cycle than getting people to change how they behave or how land is managed. Structural BMPs involve physical installations like detention ponds, infiltration systems, rain gardens, or filtration devices. They require engineering, materials, construction, land modification, permitting, and ongoing maintenance, all of which add up financially. Behavior-change BMPs rely on education, outreach, and changes in everyday practices—such as reducing fertilizer use, implementing good street sweeping routines, or adopting watershed-friendly landscaping. These typically have much lower initial costs and fewer large-scale construction needs, though they do require ongoing effort to maintain participation and effectiveness. So, the comparison indicates that structural BMPs are higher cost, while behavior changes are lower cost. Maintenance matters, but the key takeaway is the clear difference in upfront and overall costs between building infrastructure and promoting behavioral or management changes.

When you compare costs for BMPs, the main idea is that building structural features usually costs more money upfront and over their life cycle than getting people to change how they behave or how land is managed. Structural BMPs involve physical installations like detention ponds, infiltration systems, rain gardens, or filtration devices. They require engineering, materials, construction, land modification, permitting, and ongoing maintenance, all of which add up financially.

Behavior-change BMPs rely on education, outreach, and changes in everyday practices—such as reducing fertilizer use, implementing good street sweeping routines, or adopting watershed-friendly landscaping. These typically have much lower initial costs and fewer large-scale construction needs, though they do require ongoing effort to maintain participation and effectiveness.

So, the comparison indicates that structural BMPs are higher cost, while behavior changes are lower cost. Maintenance matters, but the key takeaway is the clear difference in upfront and overall costs between building infrastructure and promoting behavioral or management changes.