A Multitracer Approach to Detecting Wastewater Plumes from Municipal Injection Wells in Nearshore Marine Waters at Kihei and Lahaina, Maui, Hawaii

Hunt, Carlton C.; Rosa, Sarah N.

doi:10.3133/sir20095253

Cited by 23 publications

(37 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar testing on Maui detected the same pharmaceuticals (carbamazepine and sulfamethoxazole) in nearshore coastal waters where groundwater effluent plumes of treated, injected wastewater emerged at the shore near Kīhei and Lahaina (Hunt and Rosa, 2009). Mapping of nitrogen and other constituents defined a mile-wide effluent plume at Kīhei, in good agreement with model estimates of plume width by Hunt (2007).…”

Section: Previous Studiessupporting

confidence: 68%

“…Carbamazepine and sulfamethoxazole are very persistent once released to the environment (Drewes and others, 2003;Barber and others, 2008) and are commonly the only pharmaceuticals detected in some water samples. Carbamazepine and sulfamethoxazole were detected in treated municipal wastewater and in wells and coastal springs within injected wastewater plumes on Maui, although at concentrations one to two orders of magnitude greater than the concentrations at KAHO 2 and AP 099 (Hunt, 2007;Hunt and Rosa, 2009). Both compounds were detected south of KAHO by , who sampled Kealakehe treated wastewater, two coastal springs at Honokōhau Harbor, and two monitoring wells between the harbor and the Kealakehe wastewater disposal pit.…”

Section: Results For Decembermentioning

confidence: 99%

“…Research and sampling surveys for these compounds have been conducted internationally and in the United States (for example, Kolpin and others, 2002;Glassmeyer and others, 2005;Focazio and others, 2008), as well as locally on Maui (Hunt, 2007;Hunt and Rosa, 2009) and south of KAHO at Kealakehe . Volatile organic compounds are another class of chemicals that were analyzed for selected sites at KAHO.…”

Section: Compounds and Volatile Organic Compoundsmentioning

confidence: 99%

See 2 more Smart Citations

Baseline water-quality sampling to infer nutrient and contaminant sources at Kaloko-Honokōhau National Historical Park, Island of Hawai‘i, 2009

Hunt¹

2015

Scientific Investigations Report

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Previous Studiessupporting

confidence: 68%

Section: Results For Decembermentioning

confidence: 99%

Section: Compounds and Volatile Organic Compoundsmentioning

confidence: 99%

See 1 more Smart Citation

Baseline water-quality sampling to infer nutrient and contaminant sources at Kaloko-Honokōhau National Historical Park, Island of Hawai‘i, 2009

Hunt¹

2015

Scientific Investigations Report

Self Cite

View full text Add to dashboard Cite

show abstract

“…Owing to these findings, the site has been studied extensively to assess ecosystem impacts from upstream municipal wastewater discharges, which may be conveyed to the coastal waters by groundwater (Hunt and Rosa, 2009;Dailer and others, 2012;Miller-Pierce and Rhoads, 2016).…”

Section: Resultsmentioning

confidence: 99%

“…The facility produces treated wastewater (tertiary treated with filtration) and, since October 2011, has been disinfected with chlorine to an R-2 standard, which is disposed of through four on-site injections wells. Prior research at this site based on nitrate-nitrogen isotopes others, 2010, 2012), as well as a suite of diagnostic organic municipal wastewater pollutants (Hunt and Rosa, 2009), has documented that wastewater effluent was carried by groundwater onto the shallow reef through a series of submarine vents (submarine springs) others, 2012, Swarzenski andothers, 2013).…”

Section: Study Sitesmentioning

confidence: 99%

The use of passive membrane samplers to assess organic contaminant inputs at five coastal sites in west Maui, Hawaii

Campbell¹,

Prouty²,

Storlazzi³

et al. 2017

Open-File Report

View full text Add to dashboard Cite

ii Cover: Passive membrane sampler (foreground) and a sediment tube trap deployed on the nearshore coral reef of Wahikuli, west Maui. For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment-visit https://www.usgs.gov/ or call 1-888-ASK-USGS (1-888-275-8747).For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov.Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. AcknowledgmentsThis study was conducted as part of the U.S. Geological Survey's (USGS) Coral Reefs Project, which is an effort by the USGS to better understand the effect of geologic and oceanographic processes on coral reef systems in the United States and its trust territories. This project was funded by the USGS Coastal and Marine Geology Program, the U.S. Environmental Protection Agency (EPA), and the State of Hawaii Department of Health (HI-DOH). Watson Okubo (HI-DOH) provided administrative support, and Darla White and Russell Sparks (State of Hawaii Division of Aquatic Resources) graciously helped with the SPMD deployments and recovery. Christopher Conaway (USGS) and Renee Takesue (USGS) contributed numerous excellent suggestions and a timely review of our work. All data generated or analyzed during this study are included in the main text of this publication as numbered tables. The Use of Passive Membrane Samplers to Assess AbstractFive passive membrane samplers were deployed for 28 continuous days at select sites along and near the west Maui coastline to assess organic compounds and contaminant inputs to diverse, shallow coral reef ecosystems. Daily and weekly fluctuations in such inputs were captured on the membranes using integrative sampling. The distribution of organic compounds observed at these five coastal sites showed considerable variation; with high concentrations of terrestrially sourced organic compounds such as C29 sterols and high molecular weight nalkanes at the strongly groundwater-influenced Kahekili vent site. In comparison, the coastal sites were presumably influenced more by seasonal surface and stream water runoff and therefore had marine-sourced organic compounds and fewer pharmaceuticals and personal care products. The direct correlation to upstream land-use practices was not obvious and may require additional wet-season sampling. Pharmaceuticals and personal care products as well as flame retardants were detected at all sites, and the Kahekili vent site had the highest number of detections. Planned future work must also determine the organic compound and contaminant concentrations adsorbed onto water column particulate matter, because it may also be an important ...

show abstract

Vulnerability of Coral Reefs to Bioerosion From Land‐Based Sources of Pollution

et al. 2017

View full text Add to dashboard Cite

Ocean acidification (OA), the gradual decline in ocean pH and [ CO32−] caused by rising levels of atmospheric CO2, poses a significant threat to coral reef ecosystems, depressing rates of calcium carbonate (CaCO3) production, and enhancing rates of bioerosion and dissolution. As ocean pH and [ CO32−] decline globally, there is increasing emphasis on managing local stressors that can exacerbate the vulnerability of coral reefs to the effects of OA. We show that sustained, nutrient rich, lower pH submarine groundwater discharging onto nearshore coral reefs off west Maui lowers the pH of seawater and exposes corals to nitrate concentrations 50 times higher than ambient. Rates of coral calcification are substantially decreased, and rates of bioerosion are orders of magnitude higher than those observed in coral cores collected in the Pacific under equivalent low pH conditions but living in oligotrophic waters. Heavier coral nitrogen isotope (δ15N) values pinpoint not only site‐specific eutrophication, but also a sewage nitrogen source enriched in 15N. Our results show that eutrophication of reef seawater by land‐based sources of pollution can magnify the effects of OA through nutrient driven‐bioerosion. These conditions could contribute to the collapse of coastal coral reef ecosystems sooner than current projections predict based only on ocean acidification.

show abstract

A Multitracer Approach to Detecting Wastewater Plumes from Municipal Injection Wells in Nearshore Marine Waters at Kihei and Lahaina, Maui, Hawaii

Cited by 23 publications

References 0 publications

Baseline water-quality sampling to infer nutrient and contaminant sources at Kaloko-Honokōhau National Historical Park, Island of Hawai‘i, 2009

Baseline water-quality sampling to infer nutrient and contaminant sources at Kaloko-Honokōhau National Historical Park, Island of Hawai‘i, 2009

The use of passive membrane samplers to assess organic contaminant inputs at five coastal sites in west Maui, Hawaii

Vulnerability of Coral Reefs to Bioerosion From Land‐Based Sources of Pollution

Contact Info

Product

Resources

About